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Consistency Models as a Rich and Efficient Policy Class for Reinforcement Learning

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arxiv 2309.16984 v2 pith:HHNR2WVK submitted 2023-09-29 cs.LG

Consistency Models as a Rich and Efficient Policy Class for Reinforcement Learning

classification cs.LG
keywords policyconsistencydiffusionefficientmodelmodelsdatagenerative
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Score-based generative models like the diffusion model have been testified to be effective in modeling multi-modal data from image generation to reinforcement learning (RL). However, the inference process of diffusion model can be slow, which hinders its usage in RL with iterative sampling. We propose to apply the consistency model as an efficient yet expressive policy representation, namely consistency policy, with an actor-critic style algorithm for three typical RL settings: offline, offline-to-online and online. For offline RL, we demonstrate the expressiveness of generative models as policies from multi-modal data. For offline-to-online RL, the consistency policy is shown to be more computational efficient than diffusion policy, with a comparable performance. For online RL, the consistency policy demonstrates significant speedup and even higher average performances than the diffusion policy.

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Cited by 11 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Test-Time Gradient Guidance of Flow Policies in Reinforcement Learning

    cs.LG 2026-06 unverdicted novelty 7.0

    QGF performs test-time policy optimization for flow models in RL by guiding a behavior-cloned reference policy with value-function gradients, achieving strong results on high-dimensional offline RL benchmarks without ...

  2. Reinforcement Learning for Flow-Matching Policies with Density Transport

    cs.LG 2026-06 unverdicted novelty 7.0

    RLDT fine-tunes pretrained flow-matching policies for continuous control by aligning them to a max-entropy RL transport field constructed via SVGD, using expected-target estimation for stable multi-step updates.

  3. Aligning Flow Map Policies with Optimal Q-Guidance

    cs.LG 2026-05 unverdicted novelty 7.0

    Flow map policies enable fast one-step inference for flow-based RL policies, and FMQ provides an optimal closed-form Q-guided target for offline-to-online adaptation under trust-region constraints, achieving SOTA performance.

  4. Towards Efficient and Expressive Offline RL via Flow-Anchored Noise-conditioned Q-Learning

    cs.LG 2026-05 unverdicted novelty 7.0

    FAN achieves state-of-the-art offline RL performance on robotic tasks by anchoring flow policies and using single-sample noise-conditioned Q-learning, with proven convergence and reduced runtimes.

  5. Reinforcement Learning via Value Gradient Flow

    cs.LG 2026-04 unverdicted novelty 7.0

    VGF solves behavior-regularized RL by transporting particles from a reference distribution to the value-induced optimal policy via discrete value-guided gradient flow.

  6. Steering Your Diffusion Policy with Latent Space Reinforcement Learning

    cs.RO 2025-06 unverdicted novelty 7.0

    DSRL steers pretrained diffusion policies for robotics by applying RL to their latent noise inputs, achieving sample-efficient real-world adaptation with only black-box access.

  7. Fast and Highly Expressive Policy Learning for Offline Reinforcement Learning via Bootstrapped Flow Q-Learning

    cs.LG 2026-06 unverdicted novelty 6.0

    BFQ enables single-step noise-to-action mapping in offline RL by dividing flow-path displacements into bootstrappable short-range components learned from marginal velocity.

  8. Towards Efficient and Expressive Offline RL via Flow-Anchored Noise-conditioned Q-Learning

    cs.LG 2026-05 unverdicted novelty 6.0

    FAN simplifies expressive flow policies and distributional critics in offline RL via single-iteration behavior regularization and single-sample noise conditioning to claim SOTA performance with lower training and infe...

  9. Fisher Decorator: Refining Flow Policy via a Local Transport Map

    cs.LG 2026-04 unverdicted novelty 6.0

    Fisher Decorator refines flow policies in offline RL via a local transport map and Fisher-matrix quadratic approximation of the KL constraint, yielding controllable error near the optimum and SOTA benchmark results.

  10. Diffusion Policy Policy Optimization

    cs.RO 2024-09 unverdicted novelty 6.0

    DPPO fine-tunes diffusion policies via policy gradients and outperforms prior RL approaches for diffusion policies and PG-tuned alternatives on robot benchmarks while enabling stable training and hardware deployment.

  11. Reinforcement Learning: From Algorithms To Foundation Models

    cs.AI 2026-07 conditional novelty 3.0

    A dissertation uniting the author's published results: non-exploitable Nash-DQN policies and the FightLadder benchmark for games, plus diffusion/consistency-model world models for RL — a compilation rather than new results.