Mistral Devstral MediumvsGPT-5
Mistral Devstral Medium is cheaper than GPT-5 at $0.4/M vs $1.25/M input tokens.
| Spec | Mistral Devstral Medium | GPT-5 |
|---|---|---|
| Input price | $0.4/M tokens | $1.25/M tokens |
| Output price | $2/M tokens | $10/M tokens |
| Context window | — | 400K tokens |
| Released | Jul 2025 | Aug 2025 |
| SWE-bench Verified | 61.6% | 74.9% |
Our Verdict
GPT-5
Mistral Devstral MediumRunner-up
Not enough votes to call it. On the specs, GPT-5 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
API pricing
Cost per 1M tokens
Mistral Devstral Medium
Input
$0.40
3.1× cheaper
Output
$2.00
5.0× cheaper
GPT-5
Input
$1.25
Output
$10.00
Mistral Devstral Medium is cheaper on both — 3.1× input, 5.0× output
Writing DNA
Style Comparison
Similarity
45%
Mistral Devstral Medium uses 21.9x more bold
Mistral Devstral Medium
GPT-5
50%Vocabulary65%
18wSentence Length13w
0.50Hedging0.20
4.1Bold0.2
4.8Lists4.6
0.00Emoji0.00
0.19Headings0.16
0.29Transitions0.03
Based on 27 + 16 text responses
Research
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FAQ
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