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News/MeanFlowAdvantage: Stable Reward Fine-Tuning for Few-Step Average-Velocity Generators
arxiv
PublishedSeptember 30, 2026 at 4:00 AM

MeanFlowAdvantage: Stable Reward Fine-Tuning for Few-Step Average-Velocity Generators

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arXiv:2609.37670v1 Announce Type: new Abstract: MeanFlow enables efficient few-step generation by predicting interval-average velocities, but this representation creates a mismatch for reward fine-tuning: existing advantage-based objectives are typically defined on instantaneous velocities or equiva

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