Rubik's Cube race: Opus 5.5 solves in three moves as GPT-6 Sol times out

AI/ML API @aimlapiOriginally posted 2026.09.25

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Opus 5.5 beats Jev and GPT-6 Sol in 3 moves: Rubik’s Cube race We made 4 models run with same limits for all: 20 moves or 5 minutes. Every move = 1 API call. Results: Opus 5.5: solved in 1m 12.87s with the perfect 3 moves GPT-6 Sol: wrong first move, out of time after 4 moves Jev: 20 moves in 20 seconds, ran out of moves Laya: 20 moves in 9.5s, ran out of moves Opus, GPT, and Jev ran via http://aimlapi.com, Laya ran locally.

This post quotes another post: “Anthropic releases Claude Opus 5.5 model”