Mistral Devstral Mediumvso3 Mini
Mistral Devstral Medium is cheaper than o3 Mini at $0.4/M vs $1.1/M input tokens.
| Spec | Mistral Devstral Medium | o3 Mini |
|---|---|---|
| Input price | $0.4/M tokens | $1.1/M tokens |
| Output price | $2/M tokens | $4.4/M tokens |
| Context window | — | 64K tokens |
| Weights | — | Closed |
| Free API (OpenRouter) | No | No |
| Released | Jul 2025 | Dec 2024 |
Our Verdict
Mistral Devstral Medium
o3 MiniRunner-up
Not enough votes to call it. On the specs, Mistral Devstral Medium has the edge: bigger model tier, newer.
Too close to call
API pricing
Cost per 1M tokens
Mistral Devstral Medium
Input
$0.40
2.8× cheaper
Output
$2.00
2.2× cheaper
o3 Mini
Input
$1.10
Output
$4.40
Mistral Devstral Medium is cheaper on both: 2.8× input, 2.2× output.
Where to run it
1 host
Mistral Devstral Medium
No hosts listed on OpenRouter.
o3 Mini1 host
Per million tokens. Prices and uptime via OpenRouter, checked 8 Sep 2026.
Writing DNA
Style Comparison
Similarity
51%
Mistral Devstral Medium uses 3.2x more lists
Mistral Devstral Medium
o3 Mini
50%Vocabulary65%
18wSentence Length18w
0.50Hedging0.84
4.1Bold2.8
4.8Lists1.5
0.00Emoji0.00
0.19Headings0.33
0.29Transitions0.29
Based on 27 + 17 text responses
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