Claude Opus 4.1 vs GPT-5 Mini

Compare Claude Opus 4.1 by Anthropic against GPT-5 Mini by OpenAI, in 1 community votes, claude opus 4.1 wins 100% of head-to-head duels, tested across 25 shared challenges. Updated February 2026.

In 1 community votes, Claude Opus 4.1 wins 100% of head-to-head duels. Based on blind community voting from the RIVAL open dataset of 1+ human preference judgments for this pair.

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