Pre-training from scratch, tokenizers, datasets, and the RLHF → DPO → GRPO alignment pipeline. Part of the free Open Source AI Academy — every lesson below is open to everyone, no signup required.
Training an LLM From Scratch Pre-training requires three components: a tokenizer , a dataset , and massive compute . Tokenizer Selection Algorithm Lib...
Modern Post-Training Pipeline Raw pre-trained models are "completion engines" — they continue text, not follow instructions. Alignment transforms them...