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First time fine-tuning: my LoRA made a 2B model worse, and the mistakes taught me more than the wins

I’m not an ML engineer. I build a small desktop app that runs Gemma 4 E2B offline, and I wanted to teach it a few things it’s bad at. So I tried LoRA with MLX on my MacBook. Writing down what happened in case it helps someone else starting out. What I did right (by luck): before training I wrote a…

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  1. 2026-10-29 03:09 · r/learnmachinelearning
    First time fine-tuning: my LoRA made a 2B model worse, and the mistakes taught me more than the wins

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