Unsloth Fine-Tuning

Overview

Unsloth trains LLMs with custom kernels that cut VRAM use and step time without changing the math, which makes single-GPU fine-tuning practical on hardware that would otherwise OOM. This skill covers Unsloth Core — the Python API — because that is what an agent can drive programmatically; the Desktop app and Studio web UI are interactive and out of scope.

The hard parts of an Unsloth run are not the training call. They are sizing the job against available VRAM, getting the chat template and loss masking right, and choosing an export format the target runtime can actually load. This skill covers those three.

When to Use This Skill