Sebastian Raschka's free 11-hour course trains a reasoning model from Qwen3 0.6B (magazine.sebastianraschka.com)
The course improves a pre-trained Qwen3 0.6B model rather than training from scratch, runs early sections on a CPU and ships code in a GitHub repository.
Commenters split between readers of his LLM book who loved it and skeptics who asked who the course is for.
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