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AI video model CogVideoX-5b-I2V fails physics consistency test

By PulseAugur Editorial · [1 sources] ·

An independent physics-consistency checker, Haga, has identified a failure mode in the CogVideoX-5b-I2V model. When prompted with a "ball and block fall" scenario, the model generated videos where the object remained airborne with minimal motion instead of falling. A pre-registered test using a frozen detector confirmed this "static_hover" failure in 100% of nine held-out clips, while real physics footage remained unaffected. AI

IMPACT Highlights potential physics inconsistencies in AI video generation, suggesting a need for better physics-aware evaluation tools.

RANK_REASON Research finding on a specific AI model's failure mode. [lever_c_demoted from research: ic=1 ai=1.0]

Read on r/StableDiffusion →

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

AI video model CogVideoX-5b-I2V fails physics consistency test

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Research finding on a specific AI model's failure mode. [lever_c_demoted from research: ic=1 ai=1.0]
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High
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81 days old
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COVERAGE [1]

  1. r/StableDiffusion TIER_2 English(EN) · /u/Divine-Demon7 ·

    I froze a physics-consistency detector before generating a held-out CogVideoX cohort — it flagged freeze/hover in 9/9 clips

    <!-- SC_OFF --><div class="md"><p>I’m building Haga, an independent physics-consistency checker for generated video and robot-policy simulations. An earlier CogVideoX-5b I2V experiment produced a clear failure mode: on a “ball and block fall” prompt, the tracked object stayed air…

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