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Runway releases Praxis-1 open-weight robot action model

By PulseAugur Editorial · [1 sources] ·

Runway has released Praxis-1, a 27-billion-parameter open-weight model designed for predicting future video and robot actions. This model achieved a 46.2% success rate on NVIDIA's RoboLab-120 leaderboard, outperforming other models like FLUX 3 Action and Cosmos3 Nano. The model's architecture combines a diffusion-transformer video backbone with an action expert, and it can generate 1.6 seconds of motion in under a second on an NVIDIA H100 GPU. The article provides a checklist for developers considering using Praxis-1, emphasizing hardware sizing, cost budgeting, and the importance of fine-tuning and rigorous testing before deploying on physical robots. AI

IMPACT Sets new SOTA on robot action benchmarks; may accelerate adoption of open-weight models for robotics.

RANK_REASON Frontier-lab model release with system card [lever_c_demoted from frontier_release: ic=1 ai=1.0]

Read on dev.to — LLM tag →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Runway releases Praxis-1 open-weight robot action model

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57 / 100
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Significant
Frontier-lab model release with system card [lever_c_demoted from frontier_release: ic=1 ai=1.0]
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Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
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model release, product
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High
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Breaking (< 6h)
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COVERAGE [1]

  1. dev.to — LLM tag TIER_1 English(EN) · Shivam Kumar ·

    Praxis-1: A Developer's Checklist Before You Run an Open Robot Model on Your Hardware

    <h1> Praxis-1: A Developer's Checklist Before You Run an Open Robot Model on Your Hardware </h1> <p><strong>Shivam Kumar | November 12, 2026</strong></p> <p>Runway released Praxis-1 on November 11, 2026 — a 27-billion-parameter world action model with open weights under Apache 2.…

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