Claude Opus 4.1vsMistral Devstral Small 1.1
Mistral Devstral Small 1.1 is cheaper than Claude Opus 4.1 at $0.1/M vs $15/M input tokens.
| Spec | Claude Opus 4.1 | Mistral Devstral Small 1.1 |
|---|---|---|
| Input price | $15/M tokens | $0.1/M tokens |
| Output price | $75/M tokens | $0.3/M tokens |
| Context window | 200K tokens | — |
| Released | Aug 2025 | Jul 2025 |
| SWE-bench Verified | 74.5% | 46.8% |
Our Verdict
Claude Opus 4.1
Mistral Devstral Small 1.1Runner-up
Not enough votes to call it. On the specs, Claude Opus 4.1 has the edge: bigger model tier, bigger context window, major provider backing.
Mistral Devstral Small 1.1 costs 250x less per token.
Too close to call
API pricing
Cost per 1M tokens
Claude Opus 4.1
Input
$15.00
Output
$75.00
Mistral Devstral Small 1.1
Input
$0.10
150× cheaper
Output
$0.30
250× cheaper
Mistral Devstral Small 1.1 is cheaper on both — 150× input, 250× output
Writing DNA
Style Comparison
Similarity
44%
Claude Opus 4.1 uses 80.8x more emoji
Claude Opus 4.1
Mistral Devstral Small 1.1
63%Vocabulary51%
64wSentence Length18w
0.72Hedging0.55
4.5Bold3.8
5.3Lists5.1
0.81Emoji0.00
1.42Headings0.07
0.16Transitions0.28
Based on 26 + 27 text responses
Research
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FAQ
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