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500行C代码,把Transformer的神秘感彻底杀死
严格来说这不是GPT的架构复刻,而是精神继承。没有可学习参数的LayerNorm,用的是RMSNorm;激活函数是Squared ReLU而非GELU;tokenizer是字符级的,不是BPE。但核心机制一个不少:embedding、多头因果自注意力 ...
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