OpenAI 将 GPT-5.5 升级为 GPT-5.6 Sol，统一驱动 ChatGPT Plus 和 Pro 用户的 Instant 与深度推理模式，并用滑块调节思考量而非切换模型。免费和 Go 用户默认使用 GPT-5.6 Luna，享无限文本聊天和 Think 按钮。内部评测显示，其金融、医学和法律领域的事实错误比 GPT-5.5 Instant 减少 68%。
OpenAI now uses GPT-5.6 Sol for both Instant and Thinking across ChatGPT Plus and Pro.
Free and Go users will receive GPT-5.6 Luna as the default model, unlimited text chats, and a Think button for harder questions.
Previously, moving from Instant to higher reasoning effort could feel like switching models because the tone and behavior changed with it.
The new slider adjusts how much thought ChatGPT puts into a response while keeping GPT-5.6 Sol underneath.
Says its internal finance, medicine, and law evaluation found factual errors were 68% less common than with GPT-5.5 Instant.
We’re making better intelligence easier to access in ChatGPT for everyone: - GPT-5.6 Sol now powers both Instant and deep reasoning for Plus & Pro users, delivering more factual, focused responses. - Free & Go users get unlimited text chats with GPT-5.6 Luna starting tomorrow.在 X 查看被引用的帖子
来源：Rohan Paul · x.com