AWS adds OpenAI's Astra, Sol, Luna to Bedrock

The September 2026 recap shows AWS positioning model choice and agent operations as the core of its enterprise AI pitch. Alongside the OpenAI additions, Amazon Bedrock Managed Knowledge Base gained automatic daily, weekly, and monthly sync scheduling for its native connectors, plus user-managed setup for SharePoint, OneDrive, and Confluence that reduces reliance on admin-managed service accounts. AWS also broadened its non-OpenAI portfolio with Moonshot AI's Kimi K3, described by Moonshot AI as its most capable model and the first open model to reach 2.8 trillion parameters, and with Claude Fable 5.1, Claude Opus 5.5, and Claude Sonnet 5.5, which AWS says delivers 30 percent lower cost per task at 30 percent faster speed than Claude Sonnet 5. For teams running agents in production, these additions are meant to make it easier to match models to requirements like context length, latency, throughput, and cost. Strands Decider 2B, a 2B-parameter decision model that picks between predefined options and answers in ~115ms locally, points to a similar effort to keep small, specialized components inside the same toolkit. Whether these updates shift buying decisions may depend on how enterprises weigh the broader system around the model, not just benchmark scores.