🤖 AI / ML
引用 OpenAI 的声明Quoting OpenAI
OpenAI 宣布开始 GPT-5.6 系列的有限预览，包含旗舰模型 Sol、主打日常平衡的 Terra 以及主打低成本快速的 Luna。其中 Terra 性能与 GPT-5.5 相当但成本降低了一半，而 Luna 则以最低成本提供强大能力。OpenAI 计划在未来几周内向公众全面开放这三个模型，以践行其广泛访问的承诺。
Simon Willison
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
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