Mistral Medium 3 vs OpenAI o4-mini
Compare Mistral Medium 3 by Mistral AI against OpenAI o4-mini by OpenAI, tested across 54 shared challenges. Updated May 2026.
Which is better, Mistral Medium 3 or OpenAI o4-mini?
Mistral Medium 3 and OpenAI o4-mini are both competitive models. Mistral Medium 3 costs $0.4/M input tokens vs $1.1/M for OpenAI o4-mini. Compare their real outputs side by side below.
Key Differences Between Mistral Medium 3 and OpenAI o4-mini
Mistral Medium 3 is made by mistral while OpenAI o4-mini is from openai. On pricing, Mistral Medium 3 costs $0.4/M input tokens vs $1.1/M for OpenAI o4-mini.
API pricing
Per 1M tokens
Mistral Medium 3
Input
$0.40
2.8× cheaper
Output
$2.00
2.2× cheaper
OpenAI o4-mini
Input
$1.10
Output
$4.40
Mistral Medium 3 is cheaper on both — 2.8× input, 2.2× output
Our Verdict
Mistral Medium 3
OpenAI o4-mini
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Too close to call
Writing DNA
Style Comparison
Similarity
25%
Mistral Medium 3 uses 859.1x more bold
Mistral Medium 3
OpenAI o4-mini
57%Vocabulary73%
17wSentence Length15w
0.73Hedging0.18
8.6Bold0.0
6.5Lists2.1
0.06Emoji0.00
1.18Headings0.00
0.15Transitions0.02
Based on 15 + 10 text responses
FAQ
