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GRPO keeps winning the RL-vs-data argument, and LoRA gets a mechanistic audit

This story is from 2026-10-27. It is preserved in the archive; the latest stories are on the live feed.

This digest covers fine-tuning and post-training news from 2026-10-16 through 2026-10-27: eight new arXiv papers, two Hugging Face blog posts with reproducible SFT/GRPO recipes, and a new post-training product launch from Together AI. 🔥 Highlights Welcome Beam: a 501B open model you can own, custo…

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  1. 2026-10-27 13:06 · DEV Community — Machine Learning
    GRPO keeps winning the RL-vs-data argument, and LoRA gets a mechanistic audit

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