ChatGPT面向所有人开放无限对话：OpenAI计划如何变现推理差距
openai取消了免费用户的文本速率限制并更新了gpt-5.6 sol以提高事实可靠性，这加大了免费层向付费计划转化的压力，以获取高级推理能力。
starting next week, openai will lift all text-based rate limits for chatgpt’s free and go users, a move likely intended to increase data collection and engagement. these users will also gain access to a 'think' button for higher-reasoning tasks and an upgrade to the gpt-5.6 luna model. concurrently, paid plus and pro subscribers are receiving an updated gpt-5.6 sol model, optimized for factual reliability in dates, numbers, and sourcing, along with a slider to control the model's processing time. this tiered restructuring cements a strategy where basic access is free and unlimited, but accuracy and complex reasoning remain premium features.