Opus 5.5 writes a see-through V8 engine animation blind

macintosh @macintosh_busyOriginally posted 2026.10.07

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I asked Claude Opus 5.5 to build a V8 engine you can see inside, and it never once opened a browser Eight pistons on a crankshaft, cams opening the valves in the real firing order, a spark in every cylinder as it fires All of it in one HTML file, written BLIND. A second prompt slowed it down for the camera Two prompts, 22 minutes, $4.68 Polymarket still gives Google 69% to hold #1 on the Arena leaderboard on Oct 31 https://polymarket.com/event/which-company-has-the-best-ai-model-end-of-october?via=macintosh