Amazon Bedrock 推出 GPT-5.6 模型及显式提示缓存功能
原标题：Introducing explicit prompt caching for OpenAI GPT-5.6 models on Amazon Bedrock
AI 摘要
AWS 宣布 OpenAI GPT-5.6 系列模型（Sol、Terra、Luna）在 Amazon Bedrock 上正式可用，并引入显式提示缓存功能，允许用户精确控制缓存边界，缓存读取享有 90% 折扣，缓存写入费用为 1.25 倍，缓存有效期为 30 分钟。该功能特别适用于代理工作流，可降低重复提示的成本。文章还介绍了模型的能力分级、推理努力级别控制、流式响应、工具调用和结构化输出等特性，并提供了从旧模型迁移的指导。
正文节选
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