AI轻松学-04-OpenAI GPT-2与GPT-3

OpenAI 团队先后提出 GPT-2 与 GPT-3 两个大模型：前者基于 15 亿参数 Transformer 在 WebText 语料上训练，验证了模型扩容可显著提升零样本多任务学习性能；后者为 1750 亿参数的自回归模型，其上下文学习能力随规模大幅增强，无需微调仅靠任务示例就能在多项任务上达到甚至媲美同期微调 SOTA 效果在小宇宙查看该单集文稿

Episode metadata supplied by the publisher feed · Published Apr 22, 2026

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AI轻松学-04-OpenAI GPT-2与GPT-3

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