Mistral Medium 3 vs OpenAI o3

Compare Mistral Medium 3 by Mistral AI against OpenAI o3 by OpenAI, in 2 community votes, mistral medium 3 and openai o3 are closely matched, tested across 27 shared challenges. Updated February 2026.

In 2 community votes, Mistral Medium 3 and OpenAI o3 are closely matched. Mistral Medium 3 and OpenAI o3 perform similarly across challenge categories. Based on blind community voting from the RIVAL open dataset of 2+ human preference judgments for this pair.

Web Design: Mistral Medium 3 and OpenAI o3 are tied
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