Mistral Nemo vs OpenAI o3
Compare Mistral Nemo by Mistral AI against OpenAI o3 by OpenAI, tested across 53 shared challenges. Updated June 2026.
Which is better, Mistral Nemo or OpenAI o3?
Mistral Nemo and OpenAI o3 are both competitive models. Mistral Nemo costs $0.03/M input tokens vs $10/M for OpenAI o3. Compare their real outputs side by side below.
Key Differences Between Mistral Nemo and OpenAI o3
Mistral Nemo is made by mistral while OpenAI o3 is from openai. On pricing, Mistral Nemo costs $0.03/M input tokens vs $10/M for OpenAI o3.
API pricing
Per 1M tokens
Mistral Nemo
Input
$0.03
333× cheaper
Output
$0.07
571× cheaper
OpenAI o3
Input
$10.00
Output
$40.00
Mistral Nemo is cheaper on both — 333× input, 571× output
Our Verdict
OpenAI o3
Mistral NemoRunner-up
No community votes yet. On paper, OpenAI o3 has the edge — bigger model tier, newer, major provider backing.
Mistral Nemo is 571x cheaper per token — worth considering if cost matters.
Slight edge
Writing DNA
Style Comparison
Similarity
31%
OpenAI o3 uses 37.9x more headings
Mistral Nemo
OpenAI o3
46%Vocabulary68%
19wSentence Length14w
1.08Hedging0.26
3.6Bold0.7
8.0Lists3.0
0.00Emoji0.00
0.00Headings0.38
0.17Transitions0.12
Based on 10 + 16 text responses
FAQ
