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GPT 5.2 这次其实是更新了 3 个模型，GPT-5.2 Instant、Thinking、以及 Pro 模型。如果你习惯了 Gemini 3.0 Pro 里，每次问答都会经过思考；那么上手 GPT-5.2 Thinking/Pro 时，你会发现 ChatGPT 思考速度的变慢了，比以往所花的时间要更长。