# OpenAI 发布 GPT-5.6 系列：旗舰模型 Sol、日常模型 Terra、低价模型 Luna

- 来源：Simon Willison 博客
- 作者：Simon Willison
- 发布时间：2026-06-27 01:10
- AIHOT 分数：79
- AIHOT 标记：同事件
- AIHOT 链接：https://aihot.virxact.com/items/cmqv8y7tm0b20sl80waiy7v4i
- 原文链接：https://simonwillison.net/2026/Jun/26/openai

## AI 摘要

OpenAI 推出 GPT-5.6 系列三个模型：Sol 为旗舰，Terra 面向日常工作（性能对标 GPT-5.5 但价格便宜 2 倍），Luna 为快速低价模型。定价按每百万模型 token 计算：Sol 输入 $5 / 输出 $30，Terra 输入 $2.5 / 输出 $15，Luna 输入 $1 / 输出 $6。新版引入更可预测的提示词缓存，支持显式缓存断点和 30 分钟最小缓存生命期；缓存写入按 1.25 倍非缓存输入速率计费，缓存读取继续享受 90% 折扣。目前仅面向部分受信任合作伙伴提供有限预览，未来几周全面开放。

## 正文

Simon Willison’s Weblog

26th June 2026

We're beginning a limited preview of the GPT‑5.6 series: Sol, our flagship model; Terra, a balanced model for everyday work; and Luna, a fast and affordable model. Terra has competitive performance to GPT‑5.5 while being 2x cheaper and Luna brings strong capability at our lowest cost. [...]

We believe in broad access, and we plan to make GPT‑5.6 Sol, Terra, and Luna generally available in the coming weeks. As part of our ongoing engagement with the U.S. government, we previewed our plans and the models’ capabilities ahead of today’s launch. At their request, we are starting with a limited preview for a small group of trusted partners whose participation has been shared with the government, before releasing more broadly. [...]

GPT‑5.6 is priced per 1M tokens across three model sizes: Sol is $5 input / $30 output; Terra is $2.50 input / $15 output; and Luna is $1 input / $6 output. GPT‑5.6 also introduces more predictable prompt caching, including support for explicit cache breakpoints and a 30-minute minimum cache life. For GPT‑5.6 and later models, cache writes are billed at 1.25x the model’s uncached input rate, while cache reads continue to receive the 90% cached-input discount.

— OpenAI, Previewing GPT‑5.6 Sol: a next-generation model

26th June 2026