字节祭出开源秘密武器HybridFlow，大模型训练速度飙升20倍，成本砍到脚脖子！
大模型（LLM）如GPT、Llama等在人工智能领域掀起了一场革命，但如何高效地训练这些庞大的模型并使其符合人类价值观仍然是一个难题。强化学习与人类反馈（RLHF）作为一种重要的LLM训练方法，近年来得到广泛应用，但传统的RLHF框架在灵活性、效率和可扩展性方面存在局限性。为解决这些问题，字节跳动豆包大模型团队开源了名为HybridFlow的RLHF框架，为LLM训练带来了新的可能性。RLHF通常包含三个阶段:首先，actor模型根据输入的提示生成文本;然后，critic模型、reference模型和reward模型对生成
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