GPT-6 Astra launches on Amazon Bedrock with dual endpoints dictating audit and caching features
OpenAI's GPT-6 Astra model became generally available on Amazon Bedrock on September 8, 2026. The model features a large 1,050,000-token context window and is served via two distinct endpoints, bedrock-runtime and bedrock-mantle. These endpoints offer different functionality, forcing users to choose between features like explicit prompt caching or invocation logging, as they are not available together. The model supports text and image input but only generates text output, with a guaranteed support period until at least September 2027. Pricing and performance depend on the chosen endpoint and geographic region, with no reserved throughput or flexible tier options available.
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