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

- Company: Amazon (amazon.com)
- Announced: 2026-07-30T16:02:32+00:00
- Category: capability-change
- Subject: Bedrock / Nova
- Models affected: GPT-5.6 Sol, GPT-5.6 Terra, GPT-5.6 Luna
- Pricing: Cached input is billed at a 90 percent discount
- Source: https://aws.amazon.com/blogs/machine-learning/introducing-explicit-prompt-caching-for-openai-gpt-5-6-models-on-amazon-bedrock/
- Record: https://forck.live/items/2432-introducing-explicit-prompt-caching-for-openai-gpt-5-6-models-on-amazon-bedrock

Amazon Bedrock introduces explicit prompt caching for OpenAI GPT-5.6 models, giving users precise control over which parts of their prompts are cached and reused across requests, with a 90% discount on cached input and a 30-minute cache retention period.

## Evidence

Verbatim from https://aws.amazon.com/blogs/machine-learning/introducing-explicit-prompt-caching-for-openai-gpt-5-6-models-on-amazon-bedrock/:

> 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.

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