Unsloth vs Axolotl vs TRL vs LLaMA-Factory fine-tuning comparison

Benchmarks four popular open-source LLM fine-tuning frameworks: Unsloth rewrites kernels for speed, Axolotl composes parallelism strategies, TRL defines the RLHF pipeline, and LLaMA-Factory offers a modular interface. The comparison covers speed, VRAM usage, and multi-GPU scalability.
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