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llamafactory
Fine-tuning toolkit for 100+ LLMs with a CLI and Gradio web UI
LlamaFactory fine-tunes language and multimodal models through YAML-configured CLI runs or the LLaMA Board Gradio UI. It covers pre-training, SFT, reward modeling, PPO, DPO, KTO and ORPO, with full-tuning, freeze-tuning, LoRA and 2 to 8-bit QLoRA. Trained models can be served through an OpenAI-style API using vLLM or SGLang workers.
Strengths
- Broad method coverage: SFT, PPO, DPO, KTO, ORPO, LoRA, QLoRA via AQLM/AWQ/GPTQ/HQQ/EETQ
- Supports GaLore, BAdam, APOLLO, Muon, DoRA, PiSSA, plus Unsloth and Liger Kernel speedups
- Covers multimodal and audio models such as Qwen3-VL, LLaVA and Qwen2-Audio
- Runs on NVIDIA, AMD ROCm and Ascend NPU, with hosted Colab and PAI-DSW notebooks
Weaknesses
- Official documentation is marked WIP in the README
- No VRAM or RAM figures in the visible README; hardware requirements unknown here
- Web UI is for training and chat, not a production serving layer
- Many optional backends (vLLM, SGLang, Unsloth, KTransformers) add install complexity
- GPU required
- Docker + Compose
- Needs PyTorch, Hugging Face Transformers, Gradio, vLLM (optional), SGLang (optional)
- Models: LLaMA, LLaVA, Mistral, Mixtral-MoE, Qwen3