> For the complete documentation index, see [llms.txt](https://yeasy.gitbook.io/llm_internals/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://yeasy.gitbook.io/llm_internals/di-si-bu-fen-mo-xing-yu-qian-yan-pian/13_decoder_models.md).

# 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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