AWS adds OpenAI Astra, Sol, Luna and Claude 5.5 to Bedrock
AWS published a recap of September 2026 updates for Amazon Bedrock, AgentCore, and Strands, focusing on expanded model choice and agent infrastructure. These additions aim to help enterprises balance cost, latency, and performance for specific workloads, from high-volume tasks to complex reasoning.
Key points
- OpenAI GPT-6 Astra, Sol, and Luna are now generally available on Amazon Bedrock.
- Amazon Bedrock Managed Agents powered by OpenAI is available in public preview.
- Strands Harness is a new open source tool that uses 28 percent fewer tokens.
The update also introduces Amazon Bedrock Managed Agents powered by OpenAI, available in public preview. This feature allows developers to build production-ready agents while keeping data within AWS and using existing IAM permissions. Additionally, the AgentCore runtime has been optimized for lower cold start latency and pay-as-you-go pricing, while Strands Harness claims to use 28 percent fewer tokens than popular alternatives.
Enterprise connectivity has improved with new native connectors for ServiceNow, Salesforce, and Zendesk in the Managed Knowledge Base. AWS also highlighted Strands Decider 2B, a small open-source model for local decision-making, and noted the availability of Moonshot AI’s Kimi K3 and xAI’s Grok 4.6 and 4.7 models on the platform.
Model pages: GPT-6 Astra → · GPT-6.1 Sol → · Claude Opus 5.5 →
The story so far
10 episodes →- AWS adds OpenAI Astra, Sol, Luna and Claude 5.5 to Bedrockthis story
ICYMI: What landed for AI builders in September 2026
AWS Machine Learning Blog · 9 October 2026
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