FMRG is a training-free, single-trajectory guidance method for flow models derived from optimal control that achieves strong reward alignment with only 3 NFEs.
Steering diffusion models with quadratic rewards: a fine-grained analysis, February 2026
2 Pith papers cite this work. Polarity classification is still indexing.
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Extends score relations for tilted distributions to constant negative diagonal tilts by linking denoisers via Tweedie's formula, yielding location and time shifts in the score operator.
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How to Guide Your Flow: Few-Step Alignment via Flow Map Reward Guidance
FMRG is a training-free, single-trajectory guidance method for flow models derived from optimal control that achieves strong reward alignment with only 3 NFEs.
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Technical Note on Relating Scores of Tilted Distributions
Extends score relations for tilted distributions to constant negative diagonal tilts by linking denoisers via Tweedie's formula, yielding location and time shifts in the score operator.