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News/InfiFPO: Implicit Model Fusion via Preference Optimization in Large Language Models
arxiv
PublishedOctober 9, 2026 at 4:00 AM

InfiFPO: Implicit Model Fusion via Preference Optimization in Large Language Models

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arXiv:2505.13878v4 Announce Type: replace-cross Abstract: Model fusion combines multiple Large Language Models (LLMs) with different strengths into a more powerful, integrated model through lightweight training methods. Existing works on model fusion focus primarily on supervised fine-tuning (SFT),

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