OpenAI 取消 ChatGPT 免费版文本聊天次数限制
ChatGPT 免费用户不再受文本聊天次数限制，默认模型升级为 GPT-5.6 Luna，免费层可用体验显著提升。
OpenAI 宣布取消 ChatGPT 免费用户（以及 Go 套餐用户）的文本聊天次数限制，并用新模型 GPT-5.6 Luna 作为默认模型，取代之前的 GPT-5.5。该版本还新增一个“思考”按钮，供用户在复杂问题中选择更高的推理强度。文件、图片、语音和图像生成仍分别有各自限制。
正文摘录
OpenAI is removing limits on text-based chats for all users on ChatGPT, which recently crossed the [1 billion weekly user mark](https://openai.com/index/building-abundant-intelligence/), the company [announced](https://openai.com/index/improving-gpt-5-6-sol-in-chatgpt/) 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.  Image Credits: OpenAI The update brings changes for Plus and Pro users as well. They’ll gain access…