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  "text": "‼️VLMs/MLLMs do NOT yet understand the physical world from videos‼️\n\nIn our recent work, we found that even the most advanced AI models still lag behind humans in one key aspect: reasoning about the kinematic properties of objects from videos.\n\nTakeaways:\n1. ChatGPT 5.1 leads overall among 21 advanced VLMs, followed by Gemini 2.5 Pro/Flash.\n2. Grok 4.1 delivers impressive performance at the lowest API cost.\n3. Qwen3-VL is the top-performing open-source model.\n\nRead here: https://t.co/5lagvLNE37\n🧵1/N",
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