ChatGPT-4o (March 2025)vsMistral Devstral Small 1.1
Mistral Devstral Small 1.1 is cheaper than ChatGPT-4o (March 2025) at $0.1/M vs $5/M input tokens.
| Spec | ChatGPT-4o (March 2025) | Mistral Devstral Small 1.1 |
|---|---|---|
| Input price | $5/M tokens | $0.1/M tokens |
| Output price | $15/M tokens | $0.3/M tokens |
| Context window | 128K tokens | — |
| Released | Mar 2025 | Jul 2025 |
Our Verdict
ChatGPT-4o (March 2025)
Mistral Devstral Small 1.1Runner-up
Not enough votes to call it. On the specs, ChatGPT-4o (March 2025) has the edge: bigger model tier, bigger context window, major provider backing.
Mistral Devstral Small 1.1 costs 50x less per token.
Too close to call
API pricing
Cost per 1M tokens
ChatGPT-4o (March 2025)
Input
$5.00
Output
$15.00
Mistral Devstral Small 1.1
Input
$0.10
50× cheaper
Output
$0.30
50× cheaper
Mistral Devstral Small 1.1 is cheaper on both — 50× input, 50× output
Writing DNA
Style Comparison
Similarity
42%
ChatGPT-4o (March 2025) uses 94.5x more emoji
ChatGPT-4o (March 2025)
Mistral Devstral Small 1.1
55%Vocabulary50%
24wSentence Length17w
0.52Hedging0.56
3.3Bold4.3
6.0Lists5.7
0.94Emoji0.00
0.63Headings0.05
0.05Transitions0.34
Based on 15 + 21 text responses
Research
What we learned reading every model
FAQ
Common questions
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