Unsloth
Optimized fine-tuning library claiming 2× faster LoRA/QLoRA with less VRAM via custom kernels and Hugging Face compatibility.
Why it is included
Popular acceleration layer for open-model finetuning notebooks and startups.
Best for
Fast iteration on single-GPU fine-tunes with less memory.
Strengths
- Speed
- VRAM savings
- HF Trainer integration
Limitations
- Kernel support matrix evolves with CUDA versions
Good alternatives
Axolotl · LLaMA Factory
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