The best free AI fine-tuning and training frameworks (3)

Every option in the catalog for when you need to train a model on your own data without a cluster — 3 AI fine-tuning and training frameworks, 3 of them free or freemium, with the pricing tier printed on every row.

3tools listed
3free or freemium
3with no paid plan at all
1sub-categories covered

Best Free AI fine-tuning and training frameworks — straight answers

What are the best free AI fine-tuning and training frameworks?

Flocci AI Tools lists 3 of them, ordered free tiers first: Axolotl, LLaMA-Factory and Unsloth. Every one of them is free or has a free tier. Each entry states what it uniquely does rather than a score.

Which of these are completely free?

3 on this page are marked fully free with no paid plan at all: Axolotl, LLaMA-Factory and Unsloth. The remaining 0 are freemium, trial or paid, and each is labelled with its exact tier so nothing surprises you at sign-up.

How is this list ordered?

Free tools first, then freemium, then trial, then paid, and alphabetically inside each tier. Nobody pays to appear higher: Flocci AI Tools carries no ads, no sponsored slots and no paid listings, so the order reflects price and nothing else.

Best Free AI fine-tuning and training frameworks: pricing tier, category and the capability each tool is listed for.
ToolPricingTypeListed for
AxolotlFreeFine-Tuning & Training FrameworksConfig-file-driven fine-tuning workflow (YAML) covering LoRA, QLoRA, full fine-tuning, preference tuning and RL
LLaMA-FactoryFreeFine-Tuning & Training FrameworksZero-code Web UI (LLaMA Board) for fine-tuning 100+ open models without writing training scripts
UnslothFreeFine-Tuning & Training FrameworksFine-tunes LLMs, diffusion, TTS and embedding models 2x faster with ~70% less VRAM than standard Hugging Face training

Axolotl

Fine-Tuning & Training Frameworks
free
  • Config-file-driven fine-tuning workflow (YAML) covering LoRA, QLoRA, full fine-tuning, preference tuning and RL
  • Broad multi-model and multimodal training support with GPU-efficiency optimizations built in
  • Popular choice for reproducible post-training recipes shared across the open-model community

LLaMA-Factory

Fine-Tuning & Training Frameworks
free
  • Zero-code Web UI (LLaMA Board) for fine-tuning 100+ open models without writing training scripts
  • Supports full-tuning, LoRA, 2/3/4/5/6/8-bit QLoRA, DPO, PPO, GaLore and PiSSA in one framework
  • Used internally by Amazon, NVIDIA and Aliyun for open-model post-training

Unsloth

Fine-Tuning & Training Frameworks
free
  • Fine-tunes LLMs, diffusion, TTS and embedding models 2x faster with ~70% less VRAM than standard Hugging Face training
  • Free Google Colab notebooks let anyone fine-tune open models like Llama/Qwen/GLM on a free T4 GPU
  • Supports LoRA, QLoRA, full fine-tuning, GRPO and DPO reinforcement/preference tuning in one library

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