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OpenAI表示，ChatGPT采用的模型使用了“利用人类反馈强化学习（RLHF）”的训练方式，包括了：人类提问机器答、机器提问人类回答，并且不断迭代，让模型逐渐有了对生成答案的评判能力。相比GPT-3，ChatGPT的主要提升点在于记忆能力，可实现连续对话，极大地提升了对话交互模式下的用户体验。