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One World Model Learned a 28-Dimensional Robot Language

Pelican-Sim trained on about one million trajectories and distilled 35 rollout steps to four for a reported 5.67-fold speedup.

Published Updated Story ID: mp-2026-09-14-008
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Summary

Pelican-Sim trained on about one million trajectories and distilled 35 rollout steps to four for a reported 5.67-fold speedup.

Pelican-Sim 1.0 predicts future observations from images and robot actions across heterogeneous bodies. Its shared 28-dimensional action space is paired with rendered action videos that connect robot descriptions and camera views to pixels. Sparse mixture-of-experts layers absorb differing dynamics, while causal adaptation and distillation reduce autoregressive rollout generation from 35 steps to four. The authors report a 5.67× speedup and stronger controllability and video-quality metrics on AgiBotWorld Beta, RoboMIND and RoboTwin after training on roughly one million real and simulated trajectories. Those are simulator benchmarks, not evidence of general physical-world reliability.

Why it matters

Pelican-Sim trained on about one million trajectories and distilled 35 rollout steps to four for a reported 5.67-fold speedup.

Limits and context

  • Those are simulator benchmarks, not evidence of general physical-world reliability.

Key claims

  1. Pelican-Sim trained on about one million trajectories and distilled 35 rollout steps to four for a reported 5.67-fold speedup.

    Qualification: Those are simulator benchmarks, not evidence of general physical-world reliability.

    Evidence: source-2026-09-14-008

Sources

  1. arXiv preprint 2609.12036arXiv · primary research

Corrections

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