fine-tuning-customization

Installation
SKILL.md

Fine-Tuning & Customization

Customize LLMs for specific domains using parameter-efficient fine-tuning and alignment techniques.

Unsloth 2026: 7x longer context RL, FP8 RL on consumer GPUs, rsLoRA support. TRL: OpenEnv integration, vLLM server mode, transformers 5.0.0+ compatible.

Decision Framework: Fine-Tune or Not?

Approach Try First When It Works
Prompt Engineering Always Simple tasks, clear instructions
RAG External knowledge needed Knowledge-intensive tasks
Fine-Tuning Last resort Deep specialization, format control

Fine-tune ONLY when:

  1. Prompt engineering tried and insufficient
  2. RAG doesn't capture domain nuances
  3. Specific output format consistently required
  4. Persona/style must be deeply embedded
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Jan 21, 2026