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Fine-Tuning Fundamentals: When, Why & What It Costs
Before you burn a GPU-week: what fine-tuning actually changes, when prompting or RAG beats it, the decision framework teams skip, and honest cost math for every route.
3 sections·7 lessons
What you'll learn
1. What Fine-Tuning Actually Does
- Weights, behaviors, and the great misconception
- Check: what it does
2. Methods & Cost Math
- Full FT, LoRA, QLoRA, and the bill
- Video: fine-tune large LLMs with QLoRA, free Colab
- Check: methods & cost
3. Your First Run, Properly
- A first fine-tune that teaches you the loop
- Final check: first run
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