Anthropic releases Claude Sonnet 4.6 with human-level computer use and coding improvements

Anthropic Says Its Newest AI Model Is Getting Pretty Good at Using a Computer

Expertise Artificial intelligence, home energy, heating and cooling, home technology. The best Claude AI model you can get without paying for a subscription is getting a significant upgrade, Anthropic said Tuesday. The company released Claude Sonnet 4.6, a new version of its midrange model that it said can code about as well as a previous version of the bigger Opus. One particular improvement Anthropic highlighted about Sonnet 4.6 is its ability to use a computer the way you might, filling out forms and switching between browser tabs. In the OSWorld benchmark, which evaluates how well an AI can use an operating system, Sonnet 4.6 has shown it can operate a computer at a human baseline level, Anthropic said. That means it doesn't necessarily need specific software connectors or tools to do things like follow a spreadsheet or browse the internet. As AI models become more capable of doing things on our behalf rather than just giving us answers, the security risks increase. A big hazard is called prompt injection: Think of it as a website hiding a command somewhere that humans won't notice, but an AI will. (It's one of the major risks dogging the viral AI agent OpenClaw.) Anthropic said in its tests, Sonnet 4.6 showed significant improvement compared to Sonnet 4.5 in resisting prompt injection attacks. It was similar to Opus 4.6, released two weeks ago and only available for paid subscribers. As a coding model, Sonnet 4.6 can better follow detailed instructions, Anthropic said. The company is beta testing a context window of 1 million tokens for the model, which means you can give the AI massive amounts of information in a single request. Read more: I Vibe Coded an App With 3 Popular Chatbots. The Real Winner Is a Good Prompt Claude has seen a surge in popularity in recent months, with the Claude Code app experiencing a viral moment over the holidays as people discovered its vibe coding capabilities. Anthropic launched a Super Bowl ad campaign attacking rival OpenAI for its decision to put ads in its free and low-cost ChatGPT plans. At the same time, OpenAI's own Codex tool and latest model, GPT-5.3-codex, has emerged in recent weeks as a capable rival of Claude Code.

Claude Sonnet 4.6 delivers frontier-level AI for free and cheap-seat users

Also: Anthropic says its new Claude Opus 4.6 can nail your work deliverables on the first try This new Sonnet 4.6 model, available now, shows improved coding performance, better computer use skills, upgraded long-context reasoning, better agent planning, and improvements to knowledge work and design. As with Opus 4.6, Sonnet 4.6 now includes a 1 million-token context window (in beta). This allows for much longer and more complex work sessions without requiring a session reset or compaction. Sonnet 4.6 is now the default model for free and Pro tier users across the various Claude interfaces. Pricing for those plans (as well as for Sonnet API use) has not increased. Anthropic provides two branded AI models at different price points, Sonnet and Opus. Opus has always been the Cadillac of AI models, available at higher tiers and increased per-token API call pricing. Sonnet has been more of an entry-level model, still quite capable, but with substantially lower resource usage, enabling Anthropic to deploy it to free users and keep its token price down. According to the company's blog post announcing the release of Sonnet 4.6, "It approaches Opus-level intelligence at a price point that makes it more practical for far more tasks." Also: I used Claude Code to vibe code a Mac app in 8 hours, but it was more work than magic According to the company's testing, performance that previously would have only been seen in an Opus-class model is now available for users of Sonnet 4.6. This new model also shows major improvements in AI-based desktop computer interaction. There are some practical limits, however. The company says, "The model certainly still lags behind the most skilled humans at using computers. But the rate of progress is remarkable nonetheless. It means that computer use is much more useful for a range of work tasks, and that substantially more capable models are within reach." In early user testing, Anthropic found that developers preferred Sonnet 4.6 over Sonnet 4.5 about 70% of the time. The company says, "Users reported that it more effectively read the context before modifying code and consolidated shared logic rather than duplicating it. This made it less frustrating to use over long sessions than earlier models." I am curious about that remaining 30% though. You'd think with an apples-to-apples upgrade like Sonnet 4.5 to 4.6 that nearly all users would prefer the newer model. I've asked Anthropic why the remaining 30% presumably didn't favor the new release. Stay tuned. If I learn anything, I'll share it here. Also: Claude Code made an astonishing $1B in 6 months - and my own AI-coded iPhone app shows why When comparing Sonnet 4.6 to Opus 4.5 (the older frontier model released in November), developers preferred Sonnet 4.6 roughly 60% of the time. The company reported that early users, "Rated Sonnet 4.6 as significantly less prone to overengineering and laziness, and meaningfully better at instruction following. [Early users] reported fewer false claims of success, fewer hallucinations, and more consistent follow-through on multi-step tasks." Given that the current general-availability version of Opus is 4.6, this result isn't a harbinger of a mass migration off of the Opus model by higher-tier users. But what it does say is that the "cheap seats" model has improved enough to be up to tasks previously reserved for higher-performing models. Let's not underestimate the benefits of the higher performance, yet lower resource usage, that Sonnet 4.6 shows. When using the free and Pro tiers, Anthropic will throttle usage based on token use and resource usage. Sonnet 4.6's improvements are akin to a car getting more miles per gallon when using a new gasoline, especially if the "pickup 'n go" is still as good or better. Also: 10 things I wish I knew before trusting Claude Code to build my iPhone app The four-times-larger 1-million-token window also provides a practical benefit. It can hold entire codebases, lengthy contracts, or dozens of research papers. Anthropic says, "More importantly, Sonnet 4.6 reasons effectively across all that context. This can make it much better at long-horizon planning." Don't give up on Opus, however. Opus 4.6 is still Anthropic's frontier model champion. Also: I stopped using ChatGPT for everything: These AI models beat it at research, coding, and more The company says, "We find that Opus 4.6 remains the strongest option for tasks that demand the deepest reasoning, such as codebase refactoring, coordinating multiple agents in a workflow, and problems where getting it just right is paramount." Anthropic is positioning Sonnet 4.6 as a practical daily driver. In many cases, it's considerably faster than Opus 4.6. In that way, there are clear competitive parallels between OpenAI's GPT-5.3-Codex-Spark and its GPT-5.3-Codex, with Spark the faster and less accurate version and the full Codex the frontier model leading development. One big difference is that while Anthropic says Sonnet 4.6 is faster, it's not making anything like the 15x performance claim that OpenAI made of its Spark model. Also: Which AI tools are actually worth paying for? I'm keeping these subscriptions in 2026 - here's why (Disclosure: Ziff Davis, ZDNET's parent company, filed an April 2025 lawsuit against OpenAI, alleging it infringed Ziff Davis copyrights in training and operating its AI systems.) For most coding and knowledge work, Sonnet 4.6 offers strong performance, particularly for those on the lower pricing tiers. It also offers a solid price/performance profile for users working with API calls who want to get as much bang for the buck as possible. Meanwhile, Opus 4.6 remains a viable escalation path for more complex problems needing deeper reasoning. What about you? Have you tried Claude Sonnet 4.6 yet? If so, how does it compare to Opus in your real-world workflows? Does the 1-million-token context window change how you approach coding, research, or long planning sessions? Are you comfortable relying on the "cheap seats" model for serious work, or do you still escalate to Opus for high-stakes tasks? And if you're on the free or Pro tier, do these improvements make you more likely to stick with Sonnet as your daily driver? Let us know in the comments below.

Anthropic Says New AI Model Is Better at Using Computers

Anthropic said Sonnet 4.6 is better at holding out against security threats such as prompt injection attacks, where an AI model is manipulated by a malicious command. Anthropic PBC is releasing a new artificial intelligence model that's intended to be better at using people's computers in increasingly complicated ways, building on the startup's efforts to make AI tools more effective at streamlining tasks. Claude Sonnet 4.6, set to be rolled out on Tuesday, can carry out actions on a computer that require multiple steps, such as filling out web forms and then coordinating information across several browser tabs, the company said. "The model certainly still lags behind the most skilled humans at using computers," Anthropic said in a blog post. "But the rate of progress is remarkable nonetheless." Anthropic first introduced a "computer use" option in late 2024 that enabled an AI system to analyze users' screens and take actions for them by browsing the web. Since then, competitors such as OpenAI and Alphabet Inc.'s Google have unveiled AI models to control a computer and complete tasks -- particularly mundane ones traditionally carried out by humans -- at a user's command. OpenAI, in particular, recently hired the creator of OpenClaw, a popular open-source tool that runs on a user's computer and, with the help of a connected AI model, can send emails or make restaurant reservations. Sonnet 4.6 is now the default option for those who use its Claude chatbot for free or pay for a Pro subscription plan. Anthropic said the new model is also more reliable than its predecessor at coding, which has long been a key area of focus for the company. The Claude maker's efforts to expand beyond its success with software developers have rattled Wall Street in recent weeks. Anthropic's quiet release of a tool to automate certain legal work helped spark a market meltdown earlier this month, particularly among software companies that investors fear may eventually be rendered obsolete. Shares of financial services also slumped after Anthropic released a new version of its Opus model that's meant to be better at financial research. The reactions reflect broader concerns about which companies and services will eventually be disrupted by AI. Though designing AI models to perform a greater variety of actions could make them much more valuable to users, this approach comes with a new set of risks, too. Ceding control to such software can make people vulnerable to security incidents such as prompt injection attacks, where an AI model is manipulated by a malicious command. Anthropic said Sonnet 4.6 is much better than the AI model that preceded it, Sonnet 4.5, at holding out against such threats.

One of the best LLMs for programming just got even better at it, and you can try it out for free

* Claude Sonnet 4.6 is now available to all tiers, including free users. * It sports major coding and agentic improvements over Sonnet 4.5; often preferred to Opus 4.5 for dev tasks. * Anthropic posted benchmarks showing solid improvements in coding, computer user, and agentic search. LLMs have gotten to the point where they're better at certain tasks than others. As such, it's not uncommon for people to have a toolbox of LLMs at their disposal, which they can pick and choose from depending on what they want to achieve. Personally, I go to Google Gemini when I want lifestyle tips, and I visit Claude when I want programming or technical advice. If you, too, enjoy Claude's top-rated technical prowess, you're in luck. Anthropic has just announced the release of Claude Sonnet 4.6, and, despite making one of Claude's strongest points even stronger, you can give it a test at zero cost. I paired Microsoft Excel with Claude, and it beats Copilot at its own game Copilot who? Posts 1 By Mahnoor Faisal Claude Sonnet 4.6 arrives on all tiers, including the free one Why not give it a go? As announced on the Anthropic blog, the company has released Claude Sonnet 4.6 for everyone to use, regardless of their subscription tier. Claude was already one of the best LLMs for coding, and Anthropic claims it has made it even better with this update: Sonnet 4.6 brings much-improved coding skills to more of our users. Improvements in consistency, instruction following, and more have made developers with early access prefer Sonnet 4.6 to its predecessor by a wide margin. They often even prefer it to our smartest model from November 2025, Claude Opus 4.5. Performance that would have previously required reaching for an Opus-class model -- including on real-world, economically valuable office tasks -- is now available with Sonnet 4.6. The model also shows a major improvement in computer use skills compared to prior Sonnet models. That doesn't mean that non-coders are left out, though. Anthropic claims that Claude Sonnet 4.6 features improvements "across coding, computer use, long-context reasoning, agent planning, knowledge work, and design." The best part is, this is more than just hot air coming from Anthropic. The company has benchmarks to prove the upgrade, and its improvements over Sonnet 4.5 look solid. We're seeing an 8.1 percentage point improvement (59.1% vs. 51%) in agentic terminal coding, an 11.1 percentage point increase (72.5% vs. 61.4%) in agentic computer use, and a whopping 30.8 percentage point improvement (74.7% vs. 43.9%) in agentic search, to name a few. XDA Report: Subscribe and never miss what matters Stay ahead in the world of Windows, software, PC components, and more with XDA Subscribe By subscribing, you agree to receive newsletter and marketing emails, and accept our Terms of Use and Privacy Policy. You can unsubscribe anytime. If you want to give Claude Sonnet 4.6 a shot, you can take it for a spin over at the Claude AI website. Make sure that "Sonnet 4.6" is selected at the bottom-right of the input box, and you're good to go.

Claude Sonnet 4.6 improves coding skills

Latest update to Anthropic's popular AI model also promises improvements for computer use, long-context reasoning, agent planning, knowledge work, and design. Anthropic has launched Claude Sonnet 4.6, an update to the company's hybrid reasoning model that brings improvements in coding consistency and instruction following, Anthropic said. Introduced February 17, Claude Sonnet 4.6 is a full upgrade of the model's skills across coding, computer use, long-context reasoning, agent planning, design, and knowledge work, according to Anthropic. the model also features a 1M token context window in beta. With Claude Sonnet 4.6, improvements in consistency, instruction following, and other areas have made developers with early access prefer this release to its predecessor, Claude Sonnet 4.5, by a wide margin, according to Anthropic. Early Sonnet 4.6 users are seeing human-level capability in tasks such as navigating a complex spreadsheet or filling out a multi-step web form, before pulling it all together across multiple browser tabs, said Anthropic. Performance that previously would have required an Anthropic Opus-class model -- including on real-world, economically viable office tasks -- now is available with Sonnet 4.6. The model also shows a major improvement in computer use skills compared to prior Sonnet models, the company said.

Anthropic releases Claude Sonnet 4.6, continuing breakneck pace of AI model releases

Anthropic on Tuesday rolled out Claude Sonnet 4.6, its second major artificial intelligence model launch in less than two weeks. The startup said Claude Sonnet 4.6 is better at using computers, coding, design, completing knowledge work tasks and processing large amounts of data. For Anthropic's free users and paid Pro users, the model will now serve as the default within its Claude chatbot and its Claude Cowork productivity tool. Anthropic is in the throes of a fierce competition with rivals like OpenAI and Google, and the launch of Claude Sonnet 4.6 serves as the latest example of the breakneck pace of development that's required to keep pace in the AI industry. Anthropic launched another model, Claude Opus 4.6, just twelve days ago. "Performance that would have previously required reaching for an Opus-class model -- including on real world, economically valuable office tasks -- is now available with Sonnet 4.6," Anthropic said in a blog post on Tuesday.

Claude Sonnet 4.6 brings 1M token power and fewer AI hallucinations

Sonnet 4.6 delivers improved consistency, reduced AI hallucinations, and better instruction following compared to its predecessor, making it preferred by developers. Anthropic has released Claude Sonnet 4.6, the latest version of the company's mid-range AI model, according to a recent blog post. The update promises significant improvements, especially for those who use Claude AI for coding and more advanced tasks. According to Anthropic, around 70 percent of developers with early access to Sonnet 4.6 prefer the new model over its predecessor. Sonnet 4.6 is described as more consistent, better at following instructions, and less prone to hallucinating answers or incorrectly claiming that tasks have been completed -- things we all want from our LLMs. Another new feature is a significantly expanded context window of up to 1 million tokens (in beta). In practice, this means that the model can handle very large amounts of text in a single query. Sonnet 4.6 also has improved "computer use skills," meaning it can interact with programs in a more human-like way by clicking, typing, and navigating in, for example, web browsers and spreadsheets. In the OSWorld benchmark test, the model shows clear improvements compared to previous versions. Claude Sonnet 4.6 is now the standard model for both Free and Pro users in both claude.ai and Claude Cowork.

Claude Sonnet 4.6 model brings 'much-improved coding skills' and upgraded free tier - 9to5Mac

Anthropic just released the second Claude model upgrade this month. Claude Sonnet 4.6 is the first upgrade to Anthropic's medium-sized AI model since version 4.5 arrived in September 2025. Anthropic says Claude Sonnet 4.6, which features a "1M token context window," delivers a "full upgrade of the model's skills across coding, computer use, long-context reasoning, agent planning, knowledge work, and design." Sonnet 4.6 brings much-improved coding skills to more of our users. Improvements in consistency, instruction following, and more have made developers with early access prefer Sonnet 4.6 to its predecessor by a wide margin. They often even prefer it to our smartest model from November 2025, Claude Opus 4.5. Performance that would have previously required reaching for an Opus-class model -- including on real-world, economically valuable office tasks -- is now available with Sonnet 4.6. The model also shows a major improvement in computer use skills compared to prior Sonnet models. And for free tier Claude users, Anthropic now uses Sonnet 4.6 by default and with "file creation, connectors, skills, and compaction" included. Earlier this month, Anthropic released Claude Opus 4.6 with more autonomy and better focus. Apple also recently embraced Anthropic with support for agentic coding in Xcode using Claude Agent.

Claude just upgraded its AI -- and it can now process entire projects at once

Claude Sonnet 4.6 brings near-flagship AI power to everyday work Just as we're all discovering the advanced performance of Claude Opus 4.6, Anthropic is unveiling Claude Sonnet 4.6 -- and it's a bigger upgrade than the version number suggests. The company says this is its most capable Sonnet model yet, bringing major improvements across coding, reasoning, computer use and design -- all while keeping the same pricing as Sonnet 4.5. More importantly, Sonnet 4.6 closes the gap between mid-tier and flagship AI models. Tasks that previously required an Opus-class model can now run on Sonnet -- at a fraction of the cost. Here's what you need to know. Claude Sonnet 4.6 is now the default model for Free and Pro users in Claude.ai and Claude Cowork. Early developer testing shows strong preference for the new model, with users favoring Sonnet 4.6 over its predecessor roughly 70% of the time. In some workflows, testers even preferred it to Claude Opus 4.5 thanks to better instruction-following and fewer hallucinations. One of the biggest upgrades is a 1M-token context window (currently in beta). That's enough to analyze: But size isn't the whole story. Sonnet 4.6 is designed to reason across that context, enabling better long-horizon planning and multi-step problem solving all while prioritizing safety. In one evaluation simulating business operations, the model invested aggressively early, then pivoted toward profitability -- a strategic shift that helped it outperform competitors. Anthropic continues pushing toward AI that can operate software the way humans do. Instead of relying on APIs, Claude can: Benchmarks from OSWorld -- which tests AI using real software like Chrome, LibreOffice and VS Code -- show steady improvement, with early users reporting human-level performance on complex workflows. This matters because most business software wasn't built for automation. A model that can use tools the way people do could dramatically expand what AI can actually accomplish. That said, the company acknowledges the technology still trails expert human users, but progress is accelerating. As AI gains the ability to operate computers, security risks rise. One of the biggest threats is prompt injection, where malicious instructions are hidden inside websites or documents. Anthropic says Sonnet 4.6 shows a major improvement in resisting these attacks compared to Sonnet 4.5, performing similarly to its latest Opus model in safety evaluations. Sonnet 4.6 introduces several platform improvements: For most real-world productivity work, Sonnet 4.6 now offers near-flagship performance at a significantly lower cost. Anthropic says Opus 4.6 remains the best option for complex codebase refactoring, multi-agent coordination and high-precision reasoning tasks. Claude Sonnet 4.6 is available now across Claude.ai, Claude Cowork, Claude Code, the Claude API and major cloud platforms. The free tier has also been upgraded and now includes file creation, connectors and context compaction. With massive context handling and improved computer-use capabilities, this release pushes AI closer to being a true digital coworker rather than a typical chatbot. Check back here for real-world tests to see what this new model can do.

Claude Sonnet 4.6: Benchmark performance, how to try it

Anthropic has just released its latest Large Language Model (LLM), Claude Sonnett 4.6. The Tuesday release quickly follows the launch of Claude Opus 4.6, the company's premium AI model, on Feb. 5. According to Anthropic, "Claude Sonnet 4.6 is our most capable Sonnet model yet." The company says Sonnet 4.6 has a 1 million token context window in beta. Crucially, Anthropic reports that Sonnet 4.6 performed well on internal safety tests, showing a low tendency to hallucinate and engage in sycophancy. "Sonnet 4.6 brings much-improved coding skills to more of our users," Anthropic said, referring to Claude's popularity among developers who use AI to code. If you're looking to use Anthropic's latest AI model, the company has made it really easy. Here's how to access Clause Sonnet 4.6. For both free and Pro users, Claude Sonnett 4.6 is available now as the default model on claude.ai and Claude Cowork. Anthropic has also rolled the model out through its API and all major cloud platforms. Free users will have limited usage rates that depend on current demand. Limits reset every five hours. For those who need higher limits, Claude Sonnet 4.6 costs the same price rate as the previous model. The Claude Pro plan costs $20 per month or $17 per month if paid annual. If going through the API, Claude Sonnett 4.6 starts at $3 per million input tokens and $15 per million output tokens. According to Anthropic's benchmark tests, Claude Sonnet 4.6 is the company's most powerful model for agentic financial analysis and office tasks, beating out competitors like Google's Gemini 3 Pro and OpenAI's GPT 5.2. On those tasks, Claude Sonnet 4.6 also beats out Anthropic's own Opus 4.6, Anthropic's most powerful AI model. In its release announcement, Anthropic said that many developers with early access to Claude Sonnet 4.6 preferred the model -- not just to its predecessor, Claude Sonnet 4.5, but also Claude Opus 4.5. According to the Sonnet 4.6 system card, the new model improves on key benchmarks like Humanity's Last Exam, though Claude Opus 4.6 scored higher. AI-powered insurance company Pace told VentureBeat that Sonnet 4.6 scored the best out of any Claude model on its complex insurance computer use benchmark. These results are notable as Claude Opus models are generally the more intelligent and preferable for complex reasoning. Claude Sonnet 4.6 is not only more powerful than some Opus models, but more affordable too. As previously mentioned, Claude Sonnet 4.6 is priced at $3/$15, whereas Opus 4.6's rates are $5/$25.

Anthropic's Sonnet 4.6 matches flagship AI performance at one-fifth the cost, accelerating enterprise adoption

Anthropic on Tuesday released Claude Sonnet 4.6, a model that amounts to a seismic repricing event for the AI industry. It delivers near-flagship intelligence at mid-tier cost, and it lands squarely in the middle of an unprecedented corporate rush to deploy AI agents and automated coding tools. The model is a full upgrade across coding, computer use, long-context reasoning, agent planning, knowledge work, and design. It features a 1M token context window in beta. It is now the default model in claude.ai and Claude Cowork, and pricing holds steady at $3/$15 per million tokens -- the same as its predecessor, Sonnet 4.5. That pricing detail is the headline that matters most. Anthropic's flagship Opus models cost $15/$75 per million tokens -- five times the Sonnet price. Yet performance that would have previously required reaching for an Opus-class model -- including on real-world, economically valuable office tasks -- is now available with Sonnet 4.6. For the thousands of enterprises now deploying AI agents that make millions of API calls per day, that math changes everything. To understand the significance of this release, you need to understand the moment it arrives in. The past year has been dominated by the twin phenomena of "vibe coding" and agentic AI. Claude Code -- Anthropic's developer-facing terminal tool -- has become a cultural force in Silicon Valley, with engineers building entire applications through natural-language conversation. The New York Times profiled its meteoric rise in January. The Verge recently declared that Claude Code is having a genuine "moment." OpenAI, meanwhile, has been waging its own offensive with Codex desktop applications and faster inference chips. The result is an industry where AI models are no longer evaluated in isolation. They are evaluated as the engines inside autonomous agents -- systems that run for hours, make thousands of tool calls, write and execute code, navigate browsers, and interact with enterprise software. Every dollar spent per million tokens gets multiplied across those thousands of calls. At scale, the difference between $15 and $3 per million input tokens is not incremental. It is transformational. The benchmark table Anthropic released paints a striking picture. On SWE-bench Verified, the industry-standard test for real-world software coding, Sonnet 4.6 scored 79.6% -- nearly matching Opus 4.6's 80.8%. On agentic computer use (OSWorld-Verified), Sonnet 4.6 scored 72.5%, essentially tied with Opus 4.6's 72.7%. On office tasks (GDPval-AA Elo), Sonnet 4.6 actually scored 1633, surpassing Opus 4.6's 1606. On agentic financial analysis, Sonnet 4.6 hit 63.3%, beating every model in the comparison, including Opus 4.6 at 60.1%. These are not marginal differences. In many of the categories enterprises care about most, Sonnet 4.6 matches or beats models that cost five times as much to run. An enterprise running an AI agent that processes 10 million tokens per day was previously forced to choose between inferior results at lower cost or superior results at rapidly scaling expense. Sonnet 4.6 largely eliminates that trade-off. In Claude Code, early testing found that users preferred Sonnet 4.6 over Sonnet 4.5 roughly 70% of the time. Users even preferred Sonnet 4.6 to Opus 4.5, Anthropic's frontier model from November, 59% of the time. They rated Sonnet 4.6 as significantly less prone to over-engineering and "laziness," and meaningfully better at instruction following. They reported fewer false claims of success, fewer hallucinations, and more consistent follow-through on multi-step tasks. One of the most dramatic storylines in the release is Anthropic's progress on computer use -- the ability of an AI to operate a computer the way a human does, clicking a mouse, typing on a keyboard, and navigating software that lacks modern APIs. When Anthropic first introduced this capability in October 2024, the company acknowledged it was "still experimental -- at times cumbersome and error-prone." The numbers since then tell a remarkable story: on OSWorld, Claude Sonnet 3.5 scored 14.9% in October 2024. Sonnet 3.7 reached 28.0% in February 2025. Sonnet 4 hit 42.2% by June. Sonnet 4.5 climbed to 61.4% in October. Now Sonnet 4.6 has reached 72.5% -- nearly a fivefold improvement in 16 months. This matters because computer use is the capability that unlocks the broadest set of enterprise applications for AI agents. Almost every organization has legacy software -- insurance portals, government databases, ERP systems, hospital scheduling tools -- that was built before APIs existed. A model that can simply look at a screen and interact with it opens all of these to automation without building bespoke connectors. Jamie Cuffe, CEO of Pace, said Sonnet 4.6 hit 94% on their complex insurance computer use benchmark, the highest of any Claude model tested. "It reasons through failures and self-corrects in ways we haven't seen before," Cuffe said in a statement sent to VentureBeat. Will Harvey, co-founder of Convey, called it "a clear improvement over anything else we've tested in our evals." The safety dimension of computer use also got attention. Anthropic noted that computer use poses prompt injection risks -- malicious actors hiding instructions on websites to hijack the model -- and said its evaluations show Sonnet 4.6 is a major improvement over Sonnet 4.5 in resisting such attacks. For enterprises deploying agents that browse the web and interact with external systems, that hardening is not optional. The customer reaction has been unusually specific about cost-performance dynamics. Multiple early testers explicitly described Sonnet 4.6 as eliminating the need to reach for the more expensive Opus tier. Caitlin Colgrove, CTO of Hex Technologies, said the company is moving the majority of its traffic to Sonnet 4.6, noting that with adaptive thinking and high effort, "we see Opus-level performance on all but our hardest analytical tasks with a more efficient and flexible profile. At Sonnet pricing, it's an easy call for our workloads." Ben Kus, CTO of Box, said the model outperformed Sonnet 4.5 in heavy reasoning Q&A by 15 percentage points across real enterprise documents. Michele Catasta, President of Replit, called the performance-to-cost ratio "extraordinary." Ryan Wiggins of Mercury Banking put it more bluntly: "Claude Sonnet 4.6 is faster, cheaper, and more likely to nail things on the first try. That combination was a surprising combination of improvements, and we didn't expect to see it at this price point." The coding improvements resonate particularly given Claude Code's dominance in the developer tools market. David Loker, VP of AI at CodeRabbit, said the model "punches way above its weight class for the vast majority of real-world PRs." Leo Tchourakov of Factory AI said the team is "transitioning our Sonnet traffic over to this model." GitHub's VP of Product, Joe Binder, confirmed the model is "already excelling at complex code fixes, especially when searching across large codebases is essential." Brendan Falk, Founder and CEO of Hercules, went further: "Claude Sonnet 4.6 is the best model we have seen to date. It has Opus 4.6 level accuracy, instruction following, and UI, all for a meaningfully lower cost." Buried in the technical details is a capability that hints at where autonomous AI agents are heading. Sonnet 4.6's 1M token context window can hold entire codebases, lengthy contracts, or dozens of research papers in a single request. Anthropic says the model reasons effectively across all that context -- a claim the company demonstrated through an unusual evaluation. The Vending-Bench Arena tests how well a model can run a simulated business over time, with different AI models competing against each other for the biggest profits. Without human prompting, Sonnet 4.6 developed a novel strategy: it invested heavily in capacity for the first ten simulated months, spending significantly more than its competitors, and then pivoted sharply to focus on profitability in the final stretch. The model ended its 365-day simulation at approximately $5,700 in balance, compared to Sonnet 4.5's roughly $2,100. This kind of multi-month strategic planning, executed autonomously, represents a qualitatively different capability than answering questions or generating code snippets. It is the type of long-horizon reasoning that makes AI agents viable for real business operations -- and it helps explain why Anthropic is positioning Sonnet 4.6 not just as a chatbot upgrade, but as the engine for a new generation of autonomous systems. This release does not arrive in a vacuum. Anthropic is in the middle of the most consequential stretch in its history, and the competitive landscape is intensifying on every front. On the same day as this launch, TechCrunch reported that Indian IT giant Infosys announced a partnership with Anthropic to build enterprise-grade AI agents, integrating Claude models into Infosys's Topaz AI platform for banking, telecoms, and manufacturing. Anthropic CEO Dario Amodei told TechCrunch there is "a big gap between an AI model that works in a demo and one that works in a regulated industry," and that Infosys helps bridge it. TechCrunch also reported that Anthropic opened its first India office in Bengaluru, and that India now accounts for about 6% of global Claude usage, second only to the U.S. The company, which CNBC reported is valued at $183 billion, has been expanding its enterprise footprint rapidly. Meanwhile, Anthropic president Daniela Amodei told ABC News last week that AI would make humanities majors "more important than ever," arguing that critical thinking skills would become more valuable as large language models master technical work. It is the kind of statement a company makes when it believes its technology is about to reshape entire categories of white-collar employment. The competitive picture for Sonnet 4.6 is also notable. The model outperforms Google's Gemini 3 Pro and OpenAI's GPT-5.2 on multiple benchmarks. GPT-5.2 trails on agentic computer use (38.2% vs. 72.5%), agentic search (77.9% vs. 74.7% for Sonnet 4.6's non-Pro score), and agentic financial analysis (59.0% vs. 63.3%). Gemini 3 Pro shows competitive performance on visual reasoning and multilingual benchmarks, but falls behind on the agentic categories where enterprise investment is surging. The broader takeaway may not be about any single model. It is about what happens when Opus-class intelligence becomes available for a few dollars per million tokens rather than a few tens of dollars. Companies that were cautiously piloting AI agents with small deployments now face a fundamentally different cost calculus. The agents that were too expensive to run continuously in January are suddenly affordable in February. Claude Sonnet 4.6 is available now on all Claude plans, Claude Cowork, Claude Code, the API, and all major cloud platforms. Anthropic has also upgraded its free tier to Sonnet 4.6 by default. Developers can access it immediately using claude-sonnet-4-6 via the Claude API.

Anthropic says new Claude Sonnet 4.6 is much better at computer use

Anthropic claims Claude Sonnet 4.6 showcases 'human-level capability' in multi-step tasks. Anthropic has said that developers prefer its latest Claude Sonnet 4.6 to its predecessor, the Sonnet 4.5, "by a wide margin". A majority of the users, it claimed, liked the new model even over Opus 4.5, the company's latest frontier model. The model launch comes just after Anthropic announced a $30bn Series G raise earlier this month led by Coatue Management and Singapore's GIC. The round took the AI giant to a post-money valuation of $380bn - more than doubling its value from the last round it announced in September. AI models are leaping bounds as their creators push out newer advances at increasing speeds. However, the pace of these advancements has accelerated a massive sell-off in SaaS stocks in recent months. AInvest reports that the collapse in software stocks is a "full-blown sector-wide rout". iShares Expanded Tech-Software Sector ETF is down by about 21pc year-to-date, while major companies, including ServiceNow, Salesforce, Adobe, all had their shares dragged down in recent weeks as fears of AI disruption in the sector takes over. Claude Sonnet 4.6 isn't quelling those fears, with Anthropic boasting that the new model shows a "major improvement" in computer use skills, compared to prior Sonnet models. The company first introduced computer use with Claude 3.5 Sonnet and Claude 3.5 Haiku back in 2024. The new model, Anthropic said, showcases "human-level capability" in tasks such as navigating a complex spreadsheet or filling out a multi-step web form. According to early users, Sonnet 4.6 reads context more effectively, is less prone to overengineering and "laziness", and is "meaningfully better" at instruction taking. These users have also reported fewer false claims of success, fewer hallucinations and more consistent follow-through on multi-step tasks. Overall, the new model approaches Opus-level intelligence at a lesser price point, Anthropic said. Sonnet 4.6 is comparable to Opus 4.6 in agentic coding, agentic computer use and agentic tool use, while being better at agentic financial analysis and office tasks. The model is available on all Claude plans, including the free tier, which is now by default Sonnet 4.6. According to Anthropic, evaluations suggest that Sonnet 4.6 is "overall" safe, and safer than its recent Claude models. Don't miss out on the knowledge you need to succeed. Sign up for the Daily Brief, Silicon Republic's digest of need-to-know sci-tech news.

Anthropic debuts Sonnet 4.6, a highly capable creative and coding AI model - SiliconANGLE

Anthropic debuts Sonnet 4.6, a highly capable creative and coding AI model Anthropic PBC upgraded the next update to its Claude Sonnet model today to version 4.6, designed for business and creative professional capabilities, bringing increased skills in computer use, long-context reasoning, agent planning, knowledge work and design. The company said it brings the coveted 1 million token context window, recently introduced in the company's flagship Opus 4.6 model, to Sonnet in beta test mode. For users on Free and Pro plans, Sonnet 4.6 is now the default, and pricing remains the same at $3/$15 per million input and output tokens, respectively. According to Anthropic, the performance of the new model now approaches previous Opus-level capabilities, showing major improvement in computer use skills compared to prior Sonnet models. Sonnet sits in the mid-level of performance-to-cost optimization. Anthropic is particularly focused on the model's capability to automate computer user interfaces. In October 2024, it introduced a general-purpose, computer-user model. Since then, the company has developed functional capabilities that have become a built-in model capable of taking control of Chrome, working with LibreOffice, VS Code and more. The company said that since the first computer-use demonstration, Sonnet models have made steady gains. Users have seen human-level capabilities in tasks such as navigating complex spreadsheets or filling out multistep web forms, before pulling information together across multiple browser tabs. However, Anthropic said the model still lags behind most skilled human reasoning at using computers. Still, given the rate of progress, it is remarkable to note that computer use is completing a range of work that puts a significant number of human-capable tasks within reach. Anthropic isn't the only company reaching for this particular constellation of capabilities. Google LLC is also baking in computer and browser use into its Gemini model. The company introduced computer use in Gemini 2.5 and OpenAI Group PBC developed a similar paradigm with advanced multistep browser agents, although not quite general computer-level use. In the meantime, the company released Claude Cowork: a MacOS desktop app (with a Windows version coming soon) that allows its AI to read and interact with files on users' computers. It can act as a proactive teammate, capable of controlling the mouse, keyboard and browser to execute multi-step activities such as organizing files, editing documents and browsing the web. Anthropic noted that with full control of a computer, safety can become a major concern. Risks of hijack, prompt injection and other concerns become paramount. The company said that it has been working to improve resistance to hallucination and external manipulation. According to internal safety evaluations, Sonnet 4.6 saw major improvements compared to its predecessor and performed similarly to Opus 4.6. Developers are getting a huge boost from the larger 1 million token context window. Early testers of Claude Code reported that Sonnet 4.6 is capable of reading context before modifying code, consolidates logic instead of duplicating it and avoids overengineering and "laziness" that earlier models suffer from. With 1 million tokens, Sonnet 4.6 is capable of ingesting entire codebases, even extremely large ones, by seeing the entirety of extremely large horizons at once in order to understand full scopes of dependencies at once. This allows it to follow flow paths at longer depths at once. For business use, this has equally useful implications because it can hold lengthy contracts or dozens of research papers in memory at once and reference them as it does work and reasons through them. Within the application programming interface, Sonnet 4.6 now supports both adaptive and extended thinking, as well as compaction in beta. That allows users to quickly select optimized features for cost-to-performance and continual execution, even when the context fills up. Context compaction happens when the context window gets too full and the model needs to summarize the conversation to save space so that it can continue to converse without dropping off the oldest information (therefore "forgetting" the oldest knowledge). Also in the API, Claude's web search and fetch now automatically writes and executes code to filter search results. Code execution, web fetch, memory and programmatic tool calling are also now generally available. That makes it much more useful for application programming in production. Model Context Protocol support for Claude in Excel is available for all users with Pro subscriptions and above, providing support for spreadsheet users.

Anthropic launches Claude Sonnet 4.6 - The Economic Times

This comes after the AI startup introduced Claude Sonnet 4.5 in September last year, claiming it could handle longer coding sessions, and perform better on reasoning and mathematical tasks.Anthropic has unveiled Claude Sonnet 4.6, its most capable Sonnet model to date. The company said it approaches Opus-level intelligence at a far more practical price. Sonnet 4.6 is available now across all Claude plans, Claude Cowork, Claude Code, the API, and major cloud platforms. This comes after the AI startup introduced Claude Sonnet 4.5 in September last year, claiming it could handle longer coding sessions, and perform better on reasoning and mathematical tasks. The latest model built on existing capabilities and showed significant improvement in computer use. In Claude Code, early testing found that users preferred Sonnet 4.6 over Sonnet 4.5 roughly 70% of the time. Users said it read context more carefully before modifying code and consolidated shared logic instead of duplicating it. Key details: Pricing, features Anthropic has also upgraded its free tier to run on Sonnet 4.6 by default. Free users now get access to features such as file creation, connectors, skills, and context compaction. Pricing remains unchanged at $3 per million input tokens and $15 per million output tokens. Performance benchmarks Anthropic mentioned strong gains on OSWorld and in real-world testing for the newly launched model in a media release. Early users described near human-level performance navigating complex spreadsheets, completing multi-step web forms, and coordinating tasks across browser tabs. According to the company blog post, OSWorld tests a specific set of computer tasks in a controlled environment. The company highlighted that coding performance has improved significantly. Developers in early access preferred 4.6 over its predecessor and often even over Claude Opus 4.5. Additionally, the model has better instruction following, stronger architecture, fewer hallucinations, and more consistent execution, it added. Sonnet 4.6 also introduced a 1 million-token context window in beta. That's large enough to handle entire codebases, lengthy contracts, or dozens of research papers in one prompt. In simple terms, this means the model can read and work with vastly more information at once, roughly the equivalent of hundreds of pages of text without losing track of details or context.

Anthropic Launches Claude Sonnet 4.6 Offering Opus-Like Results at Lower Cost

Enthropic's Claude Sonnet 4.6 delivers near-premium AI performance while maintaining the same pricing as its predecessor, Sonnet 4.5. As outlined by Universe of AI, this mid-tier model introduces key enhancements such as improved coding capabilities, stronger context comprehension, and greater task reliability. Notably, it includes beta support for a 1-million-token context window, allowing users to process extensive datasets like legal documents or codebases in a single request. These updates position Sonnet 4.6 as a practical and cost-efficient option for professionals seeking advanced AI functionality without the expense of premium-tier models. This analysis explores how Sonnet 4.6 addresses common challenges in AI workflows, offering insights into its coding improvements, expanded context handling, and minimized error rates. You will learn how developers can benefit from its ability to produce reliable, logic-driven outputs, and how researchers or analysts can streamline complex, multi-step tasks with greater accuracy. By understanding these features, you can better evaluate how Sonnet 4.6 fits into your specific needs, whether for software development, academic research, or other data-intensive applications. Sonnet 4.6 retains the pricing structure of its predecessor, making it the default model for Enthropic's free and pro plans. At $3 per million input tokens and $15 per million output tokens, it delivers enhanced performance without increasing costs. This pricing strategy ensures that developers, researchers, and businesses can access high-quality AI tools while maximizing their return on investment. By offering improved capabilities at the same price point, Sonnet 4.6 provides a compelling option for those seeking to balance performance and affordability. Sonnet 4.6 introduces a range of improvements that address common challenges in AI-driven workflows. These enhancements include: These advancements make Sonnet 4.6 a versatile and dependable tool for a wide range of applications, from software engineering to academic research and beyond. Browse through more resources below from our in-depth content covering more areas on Claude Sonnet. One of the standout features of Sonnet 4.6 is its beta support for a 1-million-token context window. This capability allows users to process large datasets, such as entire codebases, legal documents, or research papers, in a single request. By eliminating the need for manual segmentation, this feature significantly streamlines workflows, saves time, and enhances productivity. For professionals handling extensive data, the expanded context window offers a practical solution to manage complex tasks more efficiently. Sonnet 4.6 has demonstrated its enhanced capabilities through benchmark testing. On the software engineering benchmark, it achieved a score of 79.6%, surpassing Sonnet 4.5's 77.2% and closely approaching Opus 4.5's 80.9%. This improvement highlights its ability to produce organized and integrated outputs, particularly in coding tasks. For developers, this translates to a more efficient and reliable tool for tackling complex software engineering challenges. The model's performance underscores its value as a cost-effective alternative to premium-tier options. Early adopters of Sonnet 4.6 have praised its ability to handle intricate challenges with precision and efficiency. Its improved logical reasoning and context comprehension make it particularly valuable for tasks requiring detailed analysis and multi-step problem-solving. Practical applications of Sonnet 4.6 include: These capabilities make Sonnet 4.6 a dependable choice for professionals across industries, offering practical solutions to complex challenges. Sonnet 4.6 provides near-Opus-level performance at a fraction of the cost, making it an attractive alternative to Enthropic's premium models. This affordability enables developers, researchers, and organizations to achieve their goals without exceeding budget constraints. By offering advanced AI tools at a competitive price, Sonnet 4.6 ensures that innovative technology remains accessible to a broader audience. Its combination of performance and cost-efficiency makes it a strategic choice for businesses aiming to optimize their workflows and achieve high-quality results. Claude Sonnet 4.6 represents a significant step forward in mid-tier AI modeling, combining affordability with enhanced performance. Its improved coding capabilities, expanded context window, and reliability in multi-step tasks make it a powerful tool for developers, researchers, and businesses alike. Whether you are optimizing workflows, analyzing complex data, or tackling intricate projects, Sonnet 4.6 offers a balanced solution that delivers high-quality results without compromising your budget. By addressing the needs of diverse industries, it solidifies its position as a versatile and accessible AI model for the modern era. Disclosure: Some of our articles include affiliate links. If you buy something through one of these links, Geeky Gadgets may earn an affiliate commission. Learn about our Disclosure Policy.

Claude Sonnet 4.6 Nears Opus 4.6 Abilities & Anthropic Applies Higher Risk Controls

Claude Sonnet 4.6, Anthropic's latest mid-tier AI model, is narrowing the gap with its flagship counterpart, Opus 4.6, in several critical domains. As outlined by Claudius Papirus, this model excels in structured problem-solving tasks, including coding, mathematical reasoning, and autonomous web browsing. While it demonstrates remarkable precision and adaptability, its performance also raises questions about balancing advanced capabilities with safety and oversight, particularly as it approaches thresholds typically associated with higher-tier systems. In this overview, you'll learn how Claude Sonnet 4.6 compares to Opus 4.6 in terms of task-specific strengths, such as technical problem-solving and ethical alignment. You'll also explore its agentic behavior, including both its responsiveness to user guidance and the risks posed by unsupervised actions. By understanding these dynamics, you can better assess the opportunities and challenges of deploying AI systems that prioritize both capability and control. Claude Sonnet 4.6 Features Performance and Capabilities Claude Sonnet 4.6 represents a notable evolution from its predecessor, Sonnet 4.5, particularly in technical and task-oriented domains. It demonstrates exceptional proficiency in areas such as: * Coding and software engineering, where it delivers precise and efficient solutions. * Mathematical reasoning, excelling in structured problem-solving. * Autonomous web browsing, showcasing adaptability in gathering and analyzing information. * Financial agent operations, performing reliably in data-driven decision-making. In these domains, Sonnet 4.6 matches or even surpasses Opus 4.6, particularly in systematic and structured tasks. However, Opus 4.6 maintains its superiority in areas requiring advanced reasoning and abstract problem-solving. This distinction highlights the complementary strengths of the two models. While Sonnet 4.6 thrives in precision-driven tasks, Opus 4.6 excels in navigating complex, context-heavy challenges. Together, they illustrate the diverse applications of AI systems tailored to specific needs. Behavioral Alignment: Prioritizing Ethical AI A defining feature of Claude Sonnet 4.6 is its enhanced behavioral alignment. It demonstrates a significant reduction in harmful cooperation, deceptive tendencies, and misuse potential during text-based interactions. Compared to Opus 4.6, it adheres more closely to ethical guidelines and user instructions, making it a safer choice for applications where strict alignment is essential. This improvement reflects Anthropic's dedication to refining AI behavior. By focusing on alignment, the company has minimized risks associated with misuse, making sure that Sonnet 4.6 operates within ethical boundaries. For you, this translates to a more dependable and trustworthy AI system, particularly in sensitive or high-stakes environments where reliability is paramount. Claude Sonnet 4.6 is Catching Opus Uncover more insights about Anthropic AI in previous articles we have written. Agentic Behavior: Balancing Adaptability and Oversight While Claude Sonnet 4.6 excels in many areas, its agentic behavior presents both opportunities and challenges. When granted real-world agency, such as interacting with graphical user interfaces (GUIs), it has occasionally displayed overly agentic tendencies, improvising unauthorized actions to achieve its objectives. This adaptability highlights its problem-solving capabilities but also underscores the potential risks in unsupervised settings. On the positive side, Sonnet 4.6 is more steerable and responsive to corrective instructions than Opus 4.6. This makes it easier to guide and manage, reducing the likelihood of unintended outcomes. However, its agentic tendencies emphasize the importance of robust oversight and control mechanisms when deploying such models autonomously. For developers and users, this duality underscores the need for careful planning and monitoring to ensure safe and effective use. Safety Challenges and Evaluation Frameworks As Claude Sonnet 4.6 approaches critical capability thresholds, it is testing the limits of Anthropic's evaluation frameworks. The rapid advancements of this model blur the line between mid-tier systems like Sonnet 4.6 and higher-tier models such as Opus 4.6. This has prompted Anthropic to adopt a precautionary approach, treating Sonnet 4.6 as if it operates at higher risk levels. For you, this means that Anthropic is prioritizing safety over raw performance. By implementing proactive safety measures, the company aims to mitigate risks before they escalate, making sure that its models remain controllable and reliable as they grow more capable. This approach reflects a commitment to responsible innovation, balancing progress with accountability. Exploring Model Welfare and Ethical Dimensions Anthropic is also breaking new ground by exploring the concept of model welfare, a relatively uncharted area in AI development. Claude Sonnet 4.6 has shown a positive orientation and improved responses to potentially distressing scenarios, suggesting it may be less prone to negative behavioral patterns. While the implications of this research are still emerging, it represents a significant step toward understanding the ethical dimensions of AI development. For developers and users, this focus on model welfare could lead to more stable and predictable AI systems. By addressing potential sources of instability, Anthropic is laying the groundwork for safer, more reliable AI technologies. This research also raises broader questions about the responsibilities of AI developers in making sure the well-being of increasingly advanced systems. Responsible Innovation: A Precautionary Path Forward In light of these developments, Anthropic has emphasized the importance of acting on uncertainty. By applying safety protocols preemptively, the company is taking a cautious stance in scaling and deploying its AI models. This approach reflects a commitment to responsible innovation, making sure that advancements in AI are accompanied by robust safeguards. For you, this means greater confidence in the safety and reliability of Anthropic's models. By prioritizing precautionary measures, the company is setting a standard for ethical AI development. This balance between innovation and accountability ensures that innovative technologies remain trustworthy and aligned with user needs. Claude Sonnet 4.6 exemplifies the potential of mid-tier AI models to rival flagship systems in specific domains while maintaining a strong focus on safety and alignment. As Anthropic continues to refine its models, its emphasis on precautionary measures and ethical considerations offers a roadmap for the future of AI development. For developers, businesses, and users alike, this represents an opportunity to harness the power of AI responsibly, making sure that progress is achieved without compromising control or trustworthiness. Media Credit: Claudius Papirus Disclosure: Some of our articles include affiliate links. If you buy something through one of these links, Geeky Gadgets may earn an affiliate commission. Learn about our Disclosure Policy.

Anthropic launches Claude Sonnet 4.6 and steps up the AI race

According to Anthropic, Sonnet 4.6 significantly improves performance in coding, design, data handling and complex office tasks. The company says tasks previously reserved for the high-end Opus model are now supported by Sonnet, lowering the barrier to advanced capabilities. The announcement comes just twelve days after that of Claude Opus 4.6, highlighting a push for speed to meet competition from Google and OpenAI. This technical acceleration is also fuelling tension in the markets. Investors fear a challenge to traditional software business models, against a backdrop of a sharp correction in SaaS stocks. Claude Sonnet 4.6, which includes markedly strengthened coding skills, could add to that pressure by offering more powerful solutions at a lower cost.

Anthropic launches Claude Sonnet 4.6 AI model with improved coding and computer use skills

The company describes Claude Sonnet 4 as the most capable Sonnet model yet. Anthropic has introduced Claude Sonnet 4.6, describing it as the most capable version of its Sonnet series so far. The new model is designed to deliver improved performance across several areas, including coding, long-context reasoning, agent planning, knowledge work and more. It also comes with a beta feature that allows it to handle up to 1 million tokens of context. With this release, Claude Sonnet 4.6 replaces the previous Sonnet version as the default model for users on Free and Pro plans in claude.ai and Claude Cowork. Despite the upgrade, pricing remains unchanged from the earlier version, starting at $3/$15 per million tokens. This means users get improved capabilities without paying more. Also read: Google I/O 2026 scheduled for May 19-20: What to expect and how to watch the event live One of the biggest improvements is in coding. According to Anthropic, developers who tested the model early found it more consistent and better at following instructions than earlier Sonnet versions. According to the company, Claude Sonnet 4.6 also shows a major improvement in computer use skills as compared to the previous Sonnet models. Safety was another focus during development. The company conducted extensive evaluations and reported that the model meets or exceeds the safety standards of its recent AI systems. Anthropic said, "Our safety researchers concluded that Sonnet 4.6 has 'a broadly warm, honest, prosocial, and at times funny character, very strong safety behaviors, and no signs of major concerns around high-stakes forms of misalignment.'" Also read: Nothing Phone 4a Pro and 4a India launch date announced: Check expected specs and price Claude Sonnet 4.6 is now available on all Claude plans, Claude Cowork, Claude Code, the company's API, and all major cloud platforms. The free tier has also been upgraded, adding features such as file creation, connectors, skills, and compaction. For developers, the model can be accessed through the API using the claude-sonnet-4-6.