# 第十三章：解码器系列与主流 LLM

仅解码器（Decoder-Only）的 Transformer 架构已成为当代大语言模型的绝对主流。本章深入剖析从 GPT 到 Llama、DeepSeek 的技术演进，以及编码器-解码器模型（T5、BART）的设计选择。


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