[r/ML] [P] mlx-tune – Fine-tune LLMs on Apple Silicon with MLX (SFT, DPO, GRPO, VLM)

Summary

mlx-tune is a new Python library enabling native fine-tuning of Large Language Models (LLMs) and Vision-Language Models (VLMs) directly on Apple Silicon using Apple's MLX framework. It supports various advanced training methods like SFT, DPO, and GRPO, along with LoRA/QLoRA and GGUF export. The library's API mirrors popular frameworks like Unsloth/TRL, allowing developers to easily adapt existing training scripts for Mac, making LLM fine-tuning more accessible to Apple users.

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