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 54 shared challenges. Updated May 2026.
Which is better, Mistral Medium 3 or OpenAI o3?
Mistral Medium 3 and OpenAI o3 are closely matched based on 2 community votes. Mistral Medium 3 costs $0.4/M input tokens vs $10/M for OpenAI o3. Compare their real outputs side by side below.
Key Differences Between Mistral Medium 3 and OpenAI o3
Mistral Medium 3 is made by mistral while OpenAI o3 is from openai. On pricing, Mistral Medium 3 costs $0.4/M input tokens vs $10/M for OpenAI o3. In community voting, In 2 community votes, Mistral Medium 3 and OpenAI o3 are closely matched.
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.
Per 1M tokens
Mistral Medium 3 is cheaper on both — 25× input, 20× output
Genuinely even. Both are strong choices.
Mistral Medium 3 is 20x cheaper per token — worth considering if cost matters.
Style Comparison
Mistral Medium 3 uses 6.0x more emoji
