https://55kwukai.github.io/categories/llm/ Recent content in LLM on Kai Wu'Blog https://55kwukai.github.io/%3Clink%20or%20path%20of%20image%20for%20opengraph,%20twitter-cards%3E https://55kwukai.github.io/%3Clink%20or%20path%20of%20image%20for%20opengraph,%20twitter-cards%3E Hugo -- gohugo.io en Wed, 18 Feb 2026 00:00:00 +0000 https://55kwukai.github.io/posts/tech/post-traininglesson/ Wed, 18 Feb 2026 00:00:00 +0000 https://55kwukai.github.io/posts/tech/post-traininglesson/ Post-Training lesson from DeepLearning.AI Intro Pre-training：喂数据，让模型学会 predict next token，输出Base Model Post-training：让模型学会 chat，或完成指