Fine-tune 100+ models with no training code using LlamaFactory + Unsloth's 170% LoRA speedup

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LlamaFactory (ACL 2024, actively maintained) fine-tunes 100+ LLMs/VLMs without writing training code, supporting 16-bit full/freeze tuning plus 2–8-bit QLoRA via AQLM/AWQ/GPTQ/HQQ/EETQ, with FlashAttention-2, Liger Kernel, and an Unsloth integration that delivers ~170% LoRA speedup and vLLM for ~270% faster inference. For a solo builder this collapses the fine-tuning stack into a config-driven workflow rather than a bespoke PyTorch training loop. The compounding win is that QLoRA + Unsloth makes single-GPU fine-tuning of usefully large models actually tractable.