AIMarkTechPostabout 2 hours ago
Fine-Tuning Frameworks Compared on Speed and VRAM
9 min read
Unsloth, Axolotl, TRL, and LLaMA-Factory are compared on training throughput, peak VRAM, and multi-GPU scaling. Unsloth shows up to 7.3x speedup on gpt-oss-20b at 8K context. Axolotl delivers up to 1.45x speedup and 30% memory reduction with custom LoRA kernels. LLaMA-Factory enables 70B fine-tuning on two 24 GB GPUs via FSDP+QLoRA.
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