Opus 5.5 vs GPT-6.1 Sol: the Mentos and Coke experiment

Ivana@ivanainai · 30 SEP 2026𝕏

Opus 5.5 vs GPT 6.1 Sol. Same prompt. Same Mentos + Coke experiment. Two very different ideas of physics.

Claude Opus 5.5VSGPT-6.1 Sol

OUR NOTESame prompt to both. The interesting part is how differently the two models model the physics.

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Cite

Ivana (@ivanainai), "Opus 5.5 vs GPT-6.1 Sol: the Mentos and Coke experiment", 30 SEP 2026. Filed at llm.gallery as FR-0006. https://x.com/ivanainai/status/2105363571785789546