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Cosmos Policy: Fine-Tuning Video Models for Visuomotor Control and Planning

Canonical reference. 78% of citing Pith papers cite this work as background.

83 Pith papers citing it
Background 78% of classified citations
abstract

Recent video generation models demonstrate remarkable ability to capture complex physical interactions and scene evolution over time. To leverage their spatiotemporal priors, robotics works have adapted video models for policy learning but introduce complexity by requiring multiple stages of post-training and new architectural components for action generation. In this work, we introduce Cosmos Policy, a simple approach for adapting a large pretrained video model (Cosmos-Predict2) into an effective robot policy through a single stage of post-training on the robot demonstration data collected on the target platform, with no architectural modifications. Cosmos Policy learns to directly generate robot actions encoded as latent frames within the video model's latent diffusion process, harnessing the model's pretrained priors and core learning algorithm to capture complex action distributions. Additionally, Cosmos Policy generates future state images and values (expected cumulative rewards), which are similarly encoded as latent frames, enabling test-time planning of action trajectories with higher likelihood of success. In our evaluations, Cosmos Policy achieves state-of-the-art performance on the LIBERO and RoboCasa simulation benchmarks (98.5% and 67.1% average success rates, respectively) and the highest average score in challenging real-world bimanual manipulation tasks, outperforming strong diffusion policies trained from scratch, video model-based policies, and state-of-the-art vision-language-action models fine-tuned on the same robot demonstrations. Furthermore, given policy rollout data, Cosmos Policy can learn from experience to refine its world model and value function and leverage model-based planning to achieve even higher success rates in challenging tasks. We release code, models, and training data at https://research.nvidia.com/labs/dir/cosmos-policy/

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representative citing papers

Targeting World Models to Compromise Robot Learning Pipelines

cs.RO · 2026-06-08 · unverdicted · novelty 7.0

World models introduce a stealthy poisoning vector into robot learning pipelines where malicious prompts or dynamics in teleoperated data activate only during synthetic trajectory generation, enabling backdoors in downstream policies.

VoLo: A Physical Orchestrator for Open-Vocabulary Long-Horizon Manipulation

cs.RO · 2026-06-05 · unverdicted · novelty 7.0

VoLoAgent uses a VLM to steer heterogeneous robot capabilities as interruptible tools for long-horizon manipulation and introduces the RoboVoLo benchmark, claiming substantial outperformance over single VLA/VLM or tool-based systems with real-robot validation.

JailWAM: Jailbreaking World Action Models in Robot Control

cs.RO · 2026-04-07 · unverdicted · novelty 7.0

JailWAM is the first dedicated jailbreak framework for World Action Models, achieving 84.2% attack success rate on LingBot-VA in RoboTwin simulation and enabling safety evaluation of robotic AI.

PlayWorld: Learning Robot World Models from Autonomous Play

cs.RO · 2026-03-09 · unverdicted · novelty 7.0

PlayWorld learns high-fidelity robot world models from unsupervised self-play, producing physically consistent video predictions that outperform models trained on human data and enabling 65% better real-world policy performance via model-based RL.

ABot-M0.5: Unified Mobility-and-Manipulation World Action Model

cs.CV · 2026-07-01 · unverdicted · novelty 6.0

ABot-M0.5 proposes a unified mobility-and-manipulation world action model using three alignment strategies that achieves state-of-the-art performance on mobile and fine-grained manipulation benchmarks.

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Showing 2 of 2 citing papers after filters.

  • MolmoAct2: Action Reasoning Models for Real-world Deployment cs.RO · 2026-05-04 · unverdicted · none · ref 21 · 2 links · internal anchor

    MolmoAct2 is an open VLA model that outperforms baselines like Pi-05 on 7 benchmarks and whose backbone surpasses GPT-5 on 13 embodied-reasoning tasks through new datasets, specialized training, and architecture changes for lower latency.

  • World Action Models are Zero-shot Policies cs.RO · 2026-02-17 · unverdicted · none · ref 55 · internal anchor

    DreamZero uses a 14B video diffusion model as a World Action Model to achieve over 2x better zero-shot generalization on real robots than state-of-the-art VLAs, real-time 7Hz closed-loop control, and cross-embodiment transfer with 10-30 minutes of data.