One of these cats was animated by an AI that actually understands how animals move.

One of these cats was animated by an AI that actually understands how animals move. The other three just know what a cat looks like. 👀 Same task for all 4: make a cat run. Watch the legs, not the colors. 🟢 Opus 5.5: smooth, glossy, fluid gallop. Looks finished. But look at the spine: it barely bends. 🔵 GPT 6 Astra: low-poly, 12 fps, straight wooden legs. It knows a cat has 4 legs. It doesn’t know what knees are for. 🟠 Kimi: cartoon squash & stretch. Super charming. Also physically impossible. ⚪ Blender MCP: fur, motion blur, and the back actually flexes on every stride, the way a real cat runs. Here’s what’s wild: all 4 nailed the “what”: ears, tail, paws, running direction. only one nailed the “how”. That’s the gap nobody talks about. AI is great at making things that look right. Making things that move right is a completely different skill. Now watch it again and tell me you didn’t notice the GPT cat’s knees 💀