AWS unveils frontier AI agents and custom model tools to unlock enterprise AI value at re:Invent

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AWS rolled out frontier AI agents and expanded model customization capabilities at its re:Invent conference, aiming to help enterprises extract real value from AI investments. The company introduced autonomous agents for software development, DevOps, and cybersecurity that work for hours without human intervention, alongside Nova Forgeโ€”a $100,000-per-year service for building custom AI models tailored to specific business needs.

AWS Targets Enterprise AI Adoption with Autonomous Agents and Custom Models

AWS is making a decisive push to help enterprises unlock tangible returns from their AI investments, announcing a suite of frontier AI agents and model customization tools at its annual re:Invent conference in Las Vegas. The cloud provider's strategy addresses a critical industry pain point: despite spending between $35 and $40 billion on generative AI initiatives, enterprises have seen minimal returns, according to an MIT study cited during the event

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. CEO Matt Garman acknowledged this disconnect directly, stating that "the true value of AI has not yet been unlocked" for most customers

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Source: SiliconANGLE

Source: SiliconANGLE

The announcements span multiple layers of AWS's AI infrastructure, from custom large language models to autonomous AI agents designed for software development, DevOps, and cybersecurity workflows. These tools represent AWS's attempt to differentiate itself in a competitive market where enterprises currently favor models from Anthropic, OpenAI, and Google, according to a July survey from Menlo Ventures

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Frontier AI Agents Work Hours Without Human Intervention

AWS introduced three frontier AI agents described as "autonomous, scalable, and work for hours or days without intervention"

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. The Kiro autonomous agent functions as a virtual developer that maintains context across repositories, pipelines, and tools like Jira and GitHub, building collective understanding of codebases and standards over time

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Source: SiliconANGLE

Source: SiliconANGLE

The AWS Security Agent acts as a virtual security engineer for application design, code reviews, and penetration testing, while the AWS DevOps Agent serves as an on-call operations team member that responds to incidents and identifies root causes when applications fail

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These agents aim to move beyond simple task assistance to "completing complex projects autonomously like a member of your team," according to AWS

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. The company emphasized that internal development teams needed agents that could "switch from babysitting every small task to directing agents toward broad, goal-driven outcomes"

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. All three agents are currently available in preview, with Kiro accessible through a dedicated developer site and the Security and DevOps agents available via the AWS management console

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Amazon Bedrock AgentCore Gets Policy Controls and Memory

AWS expanded its AI agent builder platform, Amazon Bedrock AgentCore, with features designed to address deployment concerns. The new Policy capability allows developers to set boundaries for agent interactions using natural language, including access controls to internal data or third-party applications like Salesforce and Slack

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. These boundaries can specify automatic actionsโ€”such as allowing agents to issue refunds up to $100 while requiring human approval for larger amountsโ€”according to David Richardson, vice president of AgentCore

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AgentCore Evaluations introduces 13 pre-built evaluation systems monitoring factors including correctness, safety, and tool selection accuracy. Richardson described this as addressing "the biggest fears that people have [with] deploying agents"

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. The platform also gains AgentCore Memory, enabling agents to develop logs of user information over timeโ€”like flight times or hotel preferencesโ€”to inform future decisions

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Nova Forge Offers Custom Generative AI Models for $100,000 Annually

AWS announced Nova Forge, a service where the company builds custom generative AI models for enterprise customers at $100,000 per year

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. Rather than training models from scratch or simply fine-tuning existing ones, Nova Forge provides access to partially trained checkpoints of Nova models that customers can train to completion using proprietary data combined with AWS-curated datasets

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. Matt Garman explained that this approach "introduces your domain-specific knowledge, all without losing the important foundational capabilities of the model, like reasoning"

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The resulting proprietary models, called "Novellas," are deployed exclusively within Amazon Bedrock and cannot be ported beyond AWS infrastructure

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. Ankur Mehrotra, general manager of AI platforms at AWS, noted that customers are asking, "If my competitor has access to the same model, how do I differentiate myself?"

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. Model customization appears central to AWS's answer.

Simplified Model Building Through Serverless Infrastructure

AWS introduced serverless model customization in Amazon SageMaker, allowing developers to build models without managing compute resources or infrastructure

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. Developers can follow either a self-guided point-and-click path or use an agent-led experience where they prompt SageMaker using natural languageโ€”the latter launching in preview

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. This capability supports customizing Amazon's Nova models and open source models with publicly available weights, including DeepSeek and Meta's Llama

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Source: TechCrunch

Source: TechCrunch

Amazon Bedrock also gains Reinforcement Fine-Tuning, where developers choose either a reward function or pre-set workflow and Bedrock runs the entire model customization process automatically

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. For healthcare customers seeking models that understand medical terminology better, Mehrotra explained they can "simply point SageMaker AI" to labeled data, select a technique, and the platform handles fine-tuning

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Building a Walled Garden for Enterprise AI

Critics suggest AWS is constructing a walled garden disguised as simplified enterprise AI adoption

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. The strategy mirrors AWS's approach to popularizing cloud computing two decades ago: start with hardware and build layers of abstraction that lower barriers to entry while tightening vendor lock-in

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. While Amazon Bedrock supports open-weights models from vendors like Mistral AI, these cannot be used with Nova Forge, and custom Novellas models remain confined to AWS infrastructure

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AWS enters a crowded market where DevOps vendors like Cisco's Splunk, Datadog, and Dynatrace have long offered AI-driven automations across the development lifecycle

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. Code management platforms like GitLabโ€”which has a partnership with AWS to integrate its Duo Agent tools into AWS Q Developerโ€”are also rolling out agentic technologies for automatic code reconciliation

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. Whether AWS's integrated approach and model customization capabilities can overcome its current disadvantage in model preference remains to be seen as enterprises weigh the trade-offs between convenience and portability.

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