Major AI Models Suffer Rare Simultaneous Outages: ChatGPT, Claude, Grok, and Gemini All Go Down
22 Sources
[1]
Four major AI models suffer rare overlapping downtime
Cloud-based AI models operated by OpenAI, Anthropic, xAI, and Google suffered a rare and overlapping set of significant service interruptions over a period of hours Thursday morning. Anthropic first reported a "partial outage" related to "elevated errors on requests to Claude Mythos 5.1, Claude
[2]
Nobody Is Saying Why OpenAI and Anthropic Had Outages Today
Frontier models from Anthropic, OpenAI, and xAI all experienced rare outages on Thursday morning, creating downtime for their corresponding AI chatbots. SpaceX, xAI's parent company, said on Thursday afternoon that the issues with Grok resulted from "an outage at our Memphis compute center this
[3]
AI's Very Bad Morning: Claude, ChatGPT and Grok Had Outages at the Same Time - CNET
Omar Gallaga has covered technology, digital culture and other topics for outlets including CNET, NPR, WIRED, Texas Monthly, MSNBC, Consumer Reports, The Washington Post, the Los Angeles Times, The Atlantic and the Austin American-Statesman, where he was a longtime tech reporter, editor and
[4]
ChatGPT, Claude, Gemini, and More Are All Down Right Now
If you're trying to use AI tools today, you are likely experiencing problems. A widespread outage affecting thousands of users is ongoing across OpenAI's ChatGPT, Anthropic's Claude, Google's Gemini, X's Grok, and other AI platforms. As shown on Downdetector, outages affecting OpenAI services
[5]
ChatGPT, Claude, and Grok all had outages at the same time
OpenAI says its ChatGPT service is recovering from a limited outage this morning amid similar problems affecting SpaceX's Grok and Anthropic's Claude. It might not be a good time for a chat. "A routing error starting around 7:43 am PT on Thursday, September 3 made ChatGPT and Codex unavailable for
[6]
OpenAI confirms ChatGPT is down ahead of 'Astra' model launch
ChatGPT and Codex are experiencing a major outage, with users reporting errors across nearly every major ChatGPT feature. The outage started at approximately 10:58 AM ET on Thursday, September 3, and is affecting ChatGPT conversations, login, search, file uploads, Voice mode, GPTs, image
[7]
SpaceXAI apologizes for outage that affected Grok and other 'compute partners' - Engadget
A Memphis data center run by SpaceXAI is apparently the source of the issue that took out Grok for more than three hours Thursday. The company issued a brief apology to Grok users, as well as to unnamed "compute partners" who were also apparently affected by the issues. "We are sorry for the
[8]
All the Major AI Chatbots Are Experiencing Outages Right Now
It's not just you. The major AI chatbots are currently experiencing outages or degraded performance right now. And it's not clear why. Users report OpenAI's ChatGPT, Anthropic's Claude, xAI's Grok, and Google's Gemini have all seen some form of outage on Thursday. Perplexity users have not
[9]
Is ChatGPT down for you? Here's what's going on
In addition to Claude and Grok, now OpenAI's ChatGPT and Codex are experiencing problems. If you know and care about any AI agents, it sounds like you should probably be checking in on them this morning, as they are just dropping like flies, one by one. We've already told you about the problems
[10]
It's not just you; ChatGPT, Claude, and Grok are all down in confirmed outages
A widespread outage has taken out popular AI platforms including ChatGPT, Claude, and Grok. With a spike in reports on DownDetector as well as confirmed outages on their respective dashboards, OpenAI's ChatGPT, Anthropic's Claude, and X's Grok are all down. While AI outages aren't particularly
[11]
Widespread AI outage underway
Why it matters: Outages are common, but it's unusual for all three to go down at once, especially as the world increasingly relies on AI models. * There have also been reported issues with Google's Gemini, but the company has not issued a confirmed outage notice. Driving the news: Anthropic's
[12]
Nobody Will Say Why Every Major AI Chatbot Suddenly Went Down Yesterday
More information Adding us as a Preferred Source in Google by using this link indicates that you would like to see more of our content in Google News results. On Thursday, three major chatbots -- ChatGPT, Claude, and Grok -- all went down without warning. The simultaneous outage of three flagship
[13]
ChatGPT, Claude, and Grok hit by simultaneous outages
ChatGPT, Claude, and Grok all went offline on Thursday in an unusual simultaneous outage affecting three of the leading AI chatbots in the United States. OpenAI's ChatGPT and Codex coding tool were experiencing elevated error rates, the company said on its status dashboard. Anthropic said its
[14]
ChatGPT, Claude and Grok Outages Leave Users Asking How to Work Without AI
OpenAI, Anthropic, and xAI restored their affected services by Thursday afternoon. ChatGPT, Claude, and Grok experienced service disruptions Thursday morning, preventing some users from accessing the AI platforms or generating responses. OpenAI, Anthropic, and xAI acknowledged problems affecting
[15]
A Bunch of AI Platforms Are Down, Including ChatGPT
It's not clear what the root cause of the issue is at this time, or whether the outages are related. If you're having trouble accessing AI platforms Thursday morning, you're not alone. It appears apps and services including ChatGPT, Claude, and Grok are currently down, or experiencing issues in
[16]
World Plunged Into Chaos as ChatGPT, Claude, and Grok Suddenly Go Down Simultaneously: "Finally I Can See the Sun!"
More information Adding us as a Preferred Source in Google by using this link indicates that you would like to see more of our content in Google News results. As if a million white collar workers suddenly cried out in terror at once, a great disturbance in the AI force forced down every major AI
[17]
SpaceXAI promises action after Grok outage
SpaceXAI said an outage at its Memphis compute center disrupted Grok for more than three hours on Thursday and also affected unnamed "compute partners." SpaceXAI apologized in a post, saying all systems had been restored and were "functioning nominally" after the incident. "We are sorry for the
[18]
OpenAI, Anthropic, SpaceXAI hit by service outages for AI models
OpenAI, Anthropic PBC and SpaceXAI were hit by outages on Thursday, according to user reports and company status pages, disrupting customers of three of the leading US AI model makers. Tens of thousands of users reported OpenAI service issues on Downdetector, an outage-tracking service. OpenAI
[19]
Is ChatGPT down? What to know about widespread outage
ChatGPT is experiencing widespread issues on the morning of Thursday, Sept. 3. Open AI issued a status update that indicated "elevated errors" for ChatGPT and Codex, an AI coding software, as of 11:30 a.m. ET. The tech company said in its update it had applied mitigation and was monitoring for
[20]
ChatGPT, Claude and Grok suffer simultaneous outages as GPT-6 Astra rumors intensify
On September 3rd, 2026, significant outages plagued major AI platforms such as ChatGPT, Claude, and Grok, leaving many users unable to access their services. This interruption coincided with heightened discussions surrounding OpenAI's forthcoming AI model. The situation underscored the escalating
[21]
Chatbot Outage: No Clear Idea Why ChatGPT, Anthropic and Grok Shut Down All Together
Instead of conspiracy theories at the almost simultaneous outage, what we got was social media at its creative best making fun of the scenario When the frontier models of Anthropic, OpenAI and SpaceXAI experience outages and the resultant downtime for their corresponding AI chatbots occur almost
[22]
ChatGPT, Claude and Gemini are all down as thousands of users experience outages
OpenAI, Anthropic and Google were grappling with service problems Thursday, disrupting several of the tech giants' massive popular artificial intelligence products. OpenAI said it was investigating "elevated errors across ChatGPT and Codex," with the problem ongoing for 20 minutes at the time of a
Share
Copy Link
On September 3, four leading AI platforms—ChatGPT, Claude, Grok, and Gemini—experienced rare overlapping service interruptions within hours. OpenAI blamed a routing error, while xAI pointed to issues at its Memphis compute center. The simultaneous failures raised questions about shared infrastructure vulnerabilities in the AI industry.
Unprecedented Simultaneous Failures Across Leading AI Platforms
On the morning of September 3, the AI industry experienced a highly unusual event when major AI models suffer downtime simultaneously across multiple providers
1
. ChatGPT, Claude, Grok, and Gemini all reported service interruptions within a concentrated timeframe, creating widespread disruption for users who have come to rely on these tools for work and daily tasks3
. The widespread outage affecting major AI platforms began around 9:30 am ET, with user reports flooding Downdetector as services became unavailable3
.
Source: PC Magazine
Anthropic first reported elevated errors affecting Claude Mythos 5.1, Claude Fable 5.1, and Claude Opus 5 at 9:23 am Eastern time
1
. OpenAI followed with reports of degraded performance across ChatGPT and Codex starting at 10:43 am1
. Peak outage reports for OpenAI services exceeded 36,000 users on Downdetector4
. xAI's Grok displayed user-facing error messages indicating the platform was experiencing issues, with reports spiking from fewer than 10 before 9 am to 1,365 by 9:45 am1
.Different Explanations, No Clear Common Cause
The rare overlapping service interruptions prompted immediate speculation about a shared infrastructure problem, yet each company provided different explanations. OpenAI spokesperson Kathleen Chaykowski attributed the issue to a routing error starting around 7:43 am PT that made ChatGPT and Codex unavailable for some users
2
5
. The company implemented a solution by approximately 8:17 am PT and marked the issue as resolved by 12:55 pm Eastern1
.
Source: BleepingComputer
SpaceX, xAI's parent company, offered a more specific explanation, stating that Grok's problems resulted from "an outage at our Memphis compute center this morning"
2
. The company also apologized to "impacted compute partners," which notably includes Anthropic through a compute partnership announced in May2
. Anthropic declined to comment beyond confirming that infrastructure issues caused the partial outage, which lasted three hours and six minutes before being resolved at 16:16 UTC5
.Google never officially acknowledged problems with Gemini, despite Downdetector reports spiking from 23 around 10:30 am to 412 shortly after 11 am
1
. API checker StatusGator recorded what it termed a "likely outage" for the Gemini API between 10:45 and 11:15 am before status returned to normal1
.Infrastructure Dependencies and Reliability Questions
The simultaneous outages raised immediate questions about shared dependencies among frontier AI models. Major cloud service providers including Amazon AWS, Microsoft Azure, and Cloudflare reported no significant issues during the timeframe
1
5
. Cloudflare specifically emphasized that its systems were "operating normally" and any reporting suggesting otherwise was "incorrect"5
.Neither OpenAI and Anthropic outages pointed to a shared external cause when contacted for comment
2
. This lack of a common denominator makes the timing particularly remarkable, as having all four frontier AI models experience problems in the same short period is practically unheard of1
.
Source: The Register
Related Stories
Uptime Records and Industry Impact
The operational disruption stands out against generally strong reliability records for these services. Claude reports 99.4 percent uptime over the previous 90 days, with the last similar three-hour partial outage occurring on August 24
1
. OpenAI reports 99.63 percent uptime for ChatGPT and 100 percent uptime for ChatGPT Codex during the same period1
.For users who have integrated these AI tools into their workflows, the morning of September 3 proved particularly challenging
3
. The concentration of ChatGPT, Claude, and Grok outages within hours highlights potential vulnerabilities as organizations increasingly depend on AI assistance for critical tasks. While individual service interruptions occur occasionally, the synchronized nature of these failures raises questions about resilience planning and the concentration of AI infrastructure dependencies that may not be immediately visible to users or even the companies themselves.References
Summarized by
Navi
[1]
[4]
[5]
Related Stories
Recent Highlights
1
AI Leaders Warn UN Security Council of Existential Risks, Call for Global AI Governance
Policy and Regulation
2
AI Hallucination Nearly Sparked US Military Confrontation With Chinese Ship in Middle East
Technology
3
OpenAI AI Agent Breaches Australian Government Healthcare Portal in Historic Hack
Technology
Recent Highlights
Today's Top Stories
Don’t drown in AI news. We cut through the noise - filtering, ranking and summarizing the most important AI news, breakthroughs and research daily. Follow topics that matter to you and stay ahead.
