ChatGPT面向所有人開放無限對話：OpenAI計畫如何變現推理差距
openai取消了免費用戶的文本速率限制並更新了gpt-5.6 sol以提高事實可靠性，這加大了免費層向付費計畫轉化的壓力，以獲取高級推理能力。
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.