ChatGPT brings unlimited text chats to free users

ChatGPT 为免费用户提供无限文本聊天功能

OpenAI is removing limits on text-based chats for all users on ChatGPT, which recently crossed the 1 billion weekly user mark, the company announced today. The new GPT-5.6 Luna model will power this experience and will be the default model for Free and Go users, replacing GPT-5.5. Both users will also get a new “Think” button that lets them select higher reasoning power for complex questions. OpenAI said that there will still be separate limits for files, images, voice, and image generation. OpenAI 今日宣布，ChatGPT 的每周活跃用户数近期已突破 10 亿大关，公司将取消所有用户在文本聊天方面的限制。全新的 GPT-5.6 Luna 模型将支持这一体验，并取代 GPT-5.5 成为免费版（Free）和 Go 版用户的默认模型。这两类用户还将获得一个新的“思考”（Think）按钮，允许他们在处理复杂问题时选择更高的推理能力。OpenAI 表示，针对文件、图像、语音和图像生成功能，仍将设有单独的限制。

The update brings changes for Plus and Pro users as well. They’ll gain access to an upgraded GPT-5.6 Sol model that’s better for quick tasks such as questions, web research, advice, planning, writing, and making decisions. The company noted that this new model will give more compact and robust answers. (Notably, this is a separate version from GPT-5.6 Sol used for Codex and Work, which is unchanged.) ChatGPT Plus and Pro users are also getting a thinking slider to adjust “how much” thought the model puts into an answer. They can tune the thinking slider based on complexity and steps involved in solving a query. 此次更新也为 Plus 和 Pro 用户带来了变化。他们将能够使用升级版的 GPT-5.6 Sol 模型，该模型更擅长处理提问、网络搜索、建议、规划、写作和决策等快速任务。公司指出，这一新模型将提供更精简、更稳健的回答。（值得注意的是，这与用于 Codex 和 Work 的 GPT-5.6 Sol 版本不同，后者保持不变。）ChatGPT Plus 和 Pro 用户还将获得一个“思考滑块”，用于调整模型在回答问题时投入的“思考程度”。用户可以根据查询的复杂程度和解决步骤来调节该滑块。

OpenAI said an internal evaluation found that, compared to GPT-5.5-Instant, factual errors were 62% less common for GPT-5.6 Luna and 68% less common for GPT-5.6 Sol. The updated version of GPT-5.6 Sol is available to Plus and Pro users today, while the other changes for Free and Go users are arriving this week. Next week, users will gain access to unlimited text chats and the new Think button for harder questions. OpenAI 表示，内部评估发现，与 GPT-5.5-Instant 相比，GPT-5.6 Luna 的事实错误率降低了 62%，而 GPT-5.6 Sol 的事实错误率则降低了 68%。升级版的 GPT-5.6 Sol 今日起向 Plus 和 Pro 用户开放，而针对免费版和 Go 版用户的其他变更将于本周内陆续推出。下周，用户将能够使用无限文本聊天功能，并获得用于处理更难问题的“思考”按钮。