Mistral Medium 3 vs GPT-5

Compare Mistral Medium 3 by Mistral AI against GPT-5 by OpenAI, in 1 community votes, mistral medium 3 wins 100% of head-to-head duels, context windows of 131K vs 400K, tested across 27 shared challenges. Updated April 2026.

Which is better, Mistral Medium 3 or GPT-5?

Mistral Medium 3 is the better choice overall, winning 100% of 1 blind community votes on Rival. Mistral Medium 3 costs $0.4/M input tokens vs $1.25/M for GPT-5. Context windows: 131K vs 400K tokens. Compare their real outputs side by side below.

Key Differences Between Mistral Medium 3 and GPT-5

Mistral Medium 3 is made by mistral while GPT-5 is from openai. Mistral Medium 3 has a 131K token context window compared to GPT-5's 400K. On pricing, Mistral Medium 3 costs $0.4/M input tokens vs $1.25/M for GPT-5. In community voting, In 1 community votes, Mistral Medium 3 wins 100% of head-to-head duels.

In 1 community votes, Mistral Medium 3 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.

Our Verdict
Mistral Medium 3
Mistral Medium 3Winner
GPT-5
GPT-5Runner-up

Pick Mistral Medium 3. In 1 blind votes, Mistral Medium 3 wins 100% of the time. That's not luck.

Mistral Medium 3 is 5.0x cheaper per token — worth considering if cost matters.

Clear winner
Writing DNA

Style Comparison

Similarity
98%

Mistral Medium 3 uses 6.0x more emoji

Mistral Medium 3
GPT-5
57%Vocabulary65%
17wSentence Length13w
0.73Hedging0.20
8.6Bold0.2
6.5Lists4.6
0.06Emoji0.00
1.18Headings0.16
0.15Transitions0.03
Based on 15 + 16 text responses
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Mistral Medium 3GPT-5

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