Mistral Large 2 vs OpenAI o3
Compare Mistral Large 2 by Mistral AI against OpenAI o3 by OpenAI, tested across 23 shared challenges. Updated May 2026.
Which is better, Mistral Large 2 or OpenAI o3?
Mistral Large 2 and OpenAI o3 are both competitive models. Mistral Large 2 costs $8/M input tokens vs $10/M for OpenAI o3. Compare their real outputs side by side below.
Key Differences Between Mistral Large 2 and OpenAI o3
Mistral Large 2 is made by mistral while OpenAI o3 is from openai. On pricing, Mistral Large 2 costs $8/M input tokens vs $10/M for OpenAI o3.
API pricing
Per 1M tokens
Mistral Large 2
Input
$8.00
1.3× cheaper
Output
$24.00
1.7× cheaper
OpenAI o3
Input
$10.00
Output
$40.00
Mistral Large 2 is cheaper on both — 1.3× input, 1.7× output
Our Verdict
OpenAI o3
Mistral Large 2Runner-up
No community votes yet. On paper, OpenAI o3 has the edge — bigger model tier, newer, major provider backing.
Slight edge
Writing DNA
Style Comparison
Similarity
35%
Mistral Large 2 uses 79.6x more emoji
Mistral Large 2
OpenAI o3
43%Vocabulary68%
21wSentence Length14w
0.39Hedging0.26
14.4Bold0.7
7.4Lists3.0
0.80Emoji0.00
1.41Headings0.38
0.01Transitions0.12
Based on 10 + 16 text responses
FAQ
