Mistral Devstral MediumvsGPT-4o (Omni)
Mistral Devstral Medium is cheaper than GPT-4o (Omni) at $0.4/M vs $2.5/M input tokens.
| Spec | Mistral Devstral Medium | GPT-4o (Omni) |
|---|---|---|
| Input price | $0.4/M tokens | $2.5/M tokens |
| Output price | $2/M tokens | $10/M tokens |
| Context window | — | 128K tokens |
| Weights | — | Closed |
| Free API (OpenRouter) | No | No |
| Released | Jul 2025 | May 2024 |
Our Verdict
GPT-4o (Omni)
Mistral Devstral MediumRunner-up
Not enough votes to call it. On the specs, GPT-4o (Omni) has the edge: bigger model tier, bigger context window, major provider backing.
Mistral Devstral Medium costs 5.0x less per token.
Too close to call
Reviewing agent-written code?See a Brief PR report
API pricing
Cost per 1M tokens
Mistral Devstral Medium
Input
$0.40
6.3× cheaper
Output
$2.00
5.0× cheaper
GPT-4o (Omni)
Input
$2.50
Output
$10.00
Mistral Devstral Medium is cheaper on both: 6.3× input, 5.0× output.
Where to run it
2 hosts
Mistral Devstral Medium
No hosts listed on OpenRouter.
Per million tokens. Prices and uptime via OpenRouter, checked 13 Sep 2026.
Writing DNA
Style Comparison
Similarity
80%
GPT-4o (Omni) uses 2.5x more emoji
Mistral Devstral Medium
GPT-4o (Omni)
50%Vocabulary54%
18wSentence Length18w
0.50Hedging0.72
4.1Bold7.3
4.8Lists5.6
0.00Emoji0.03
0.19Headings1.40
0.29Transitions0.26
Based on 27 + 24 text responses
Research
What we learned reading every model
FAQ
Common questions
Keep exploring
More comparisons
Mistral Devstral Medium vs Ox AlphaNew provider
Mistral Devstral Medium vs Llama 4 MaverickNew provider
Mistral Devstral Medium vs GPT-5Cross-provider
Mistral Devstral Medium vs Claude Opus 4New provider
Mistral Devstral Medium vs Gemini 3.1 Pro PreviewNew provider
Mistral Devstral Medium vs Gemini 3.5 FlashNew provider
Mistral Devstral Medium vs Gemini 3.6 FlashNew provider
Mistral Devstral Medium vs Gemini 3.7 FlashNew provider