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OpenAI GPT-5.6 models on Bedrock support 1M token context windows

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feature

Amazon Bedrock now supports OpenAI's GPT-5.6 Sol, Terra, and Luna models with a 1 million token context window. This enhancement allows for processing extensive datasets like codebases and long documents in a single request, leading to more accurate responses and reduced information loss. These models are available in specific AWS regions, with pricing aligned to OpenAI's first-party rates and prompt caching offering significant discounts for repeated context.

  • →1 million token context window for GPT-5.6 models on Amazon Bedrock
  • →Prompt caching for discounted repeated context
  • →Pricing and AWS commitment details
  • →Regional availability for GPT-5.6 models
  • →Getting started with the new models
Features (1) ›
  • 1 million token context window for GPT-5.6 models on Amazon Bedrock

    OpenAI GPT-5.6 Sol, Terra, and Luna models on Amazon Bedrock now support a 1 million token context window. This enables processing of full codebases, lengthy documents, and multi-turn agent histories in a single request, leading to more accurate and coherent responses without chunking.

Enhancements (1) ›
  • Prompt caching for discounted repeated context

    Prompt caching with explicit cache breakpoints is applied to long context requests. This results in repeated context being billed at a 90% discount, making long context analysis more cost-effective.

Notes (3) ›
  • Pricing and AWS commitment details

    Pricing for these models matches OpenAI's first-party rates, and usage counts toward AWS commitments. This aligns the cost structure for users leveraging these advanced models through Bedrock.

  • Regional availability for GPT-5.6 models

    GPT-5.6 Sol is available in the US East (N. Virginia) and US East (Ohio) AWS Regions. GPT-5.6 Terra and Luna are available in US East (N. Virginia), US East (Ohio), and US West (Oregon).

  • Getting started with the new models

    Users can get started with Sol, Terra, and Luna via the Amazon Bedrock Console or the Responses API on the bedrock-mantle endpoint. Further details are available in the Amazon Bedrock documentation and launch blog post.

Read the original announcement →

https://aws.amazon.com/about-aws/whats-new/2026/08/gpt-sol-terra-luna-long-context-bedrock

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