Mistral Large 3 2512 vs OpenAI o4-mini

Compare Mistral Large 3 2512 by Mistral AI against OpenAI o4-mini by OpenAI, tested across 35 shared challenges. Updated April 2026.

Which is better, Mistral Large 3 2512 or OpenAI o4-mini?

Mistral Large 3 2512 and OpenAI o4-mini are both competitive models. Compare their real outputs side by side below.

Key Differences Between Mistral Large 3 2512 and OpenAI o4-mini

Mistral Large 3 2512 is made by mistral while OpenAI o4-mini is from openai.

Our Verdict
Mistral Large 3 2512
Mistral Large 3 2512
OpenAI o4-mini
OpenAI o4-miniRunner-up

No community votes yet. On paper, Mistral Large 3 2512 has the edge — bigger model tier, newer.

Too close to call
Writing DNA

Style Comparison

Similarity
86%

Mistral Large 3 2512 uses 1164.6x more bold

Mistral Large 3 2512
OpenAI o4-mini
50%Vocabulary73%
20wSentence Length15w
0.48Hedging0.18
11.6Bold0.0
5.7Lists2.1
0.50Emoji0.00
1.18Headings0.00
0.06Transitions0.02
Based on 24 + 10 text responses
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Ask them anything yourself

Mistral Large 3 2512OpenAI o4-mini

279 AI models invented the same fake scientist.

We read every word. 250 models. 2.14 million words. This is what we found.

AI Hallucination Index 2026
Free preview13 of 58 slides
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