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I fine-tuned a 2B decision model to play Doom on my Mac in 43 minutes (open source, MLX)

You've probably seen (large) decision models play games. I wanted to see if you could also train a model to play using game images on a Mac, so I added LoRA fine-tuning on images to mlx-decision (my open-source tool for running and training decision models on Apple Silicon). How it works: a decisio…

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  1. 2026-11-09 18:04 · r/LocalLLaMA
    I fine-tuned a 2B decision model to play Doom on my Mac in 43 minutes (open source, MLX)

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