Amazon· Bedrock / Nova

Introducing explicit prompt caching for OpenAI GPT-5.6 models on Amazon Bedrock

This post is co-written with Chris Dickens from OpenAI. OpenAI GPT-5.6 Sol, Terra, and Luna are now generally available on Amazon Bedrock . With GPT-5.6 on Amazon Bedrock, you get the newest generation of OpenAI frontier models with pay-per-token pricing, AWS security and governance controls, and usage that counts toward your existing AWS commitments. The family covers three capability tiers: GPT-5.6 Sol for the most complex reasoning and agentic coding work, GPT-5.6 Terra for balanced everyday production workloads, and GPT-5.6 Luna for fast, high-volume tasks such as classification and summarization. Alongside the new models, GPT-5.6 introduces explicit prompt caching on Amazon Bedrock, a new capability that gives you precise control over which portions of your prompt are cached and reused across requests. Cached input is billed at a 90 percent discount (see the Amazon Bedrock pricing page ) and stays available for reuse for 30 minutes. You get the most value from this in agentic workflows, where system instructions, tool definitions, and reference documents repeat across many calls. …

Announced

30 Jul 2026 16:02 UTC