Claude Sonnet 4.5vsMistral Devstral Small 1.1
Mistral Devstral Small 1.1 is cheaper than Claude Sonnet 4.5 at $0.1/M vs $3/M input tokens.
| Spec | Claude Sonnet 4.5 | Mistral Devstral Small 1.1 |
|---|---|---|
| Input price | $3/M tokens | $0.1/M tokens |
| Output price | $15/M tokens | $0.3/M tokens |
| Context window | 200K tokens | — |
| Released | Sep 2025 | Jul 2025 |
| SWE-bench Verified | 77.2% | 46.8% |
Our Verdict
Claude Sonnet 4.5
Mistral Devstral Small 1.1Runner-up
Not enough votes to call it. On the specs, Claude Sonnet 4.5 has the edge: bigger model tier, newer, bigger context window, major provider backing.
Mistral Devstral Small 1.1 costs 50x less per token.
Slight edge
API pricing
Cost per 1M tokens
Claude Sonnet 4.5
Input
$3.00
Output
$15.00
Mistral Devstral Small 1.1
Input
$0.10
30× cheaper
Output
$0.30
50× cheaper
Mistral Devstral Small 1.1 is cheaper on both — 30× input, 50× output
Writing DNA
Style Comparison
Similarity
40%
Claude Sonnet 4.5 uses 45.2x more emoji
Claude Sonnet 4.5
Mistral Devstral Small 1.1
64%Vocabulary50%
94wSentence Length17w
0.48Hedging0.56
4.9Bold4.3
8.0Lists5.7
0.45Emoji0.00
1.91Headings0.05
0.07Transitions0.34
Based on 20 + 21 text responses
Research
What we learned reading every model
FAQ
Common questions
Keep exploring
More comparisons
Mistral Devstral Small 1.1 vs MiniMax M3New provider
Mistral Devstral Small 1.1 vs Ox AlphaNew provider
Mistral Devstral Small 1.1 vs MiniMax M2.7New provider
Mistral Devstral Small 1.1 vs Aurora AlphaNew provider
Claude Sonnet 4.5 vs Grok 3 ThinkingNew provider
Claude Sonnet 4.5 vs Grok 4New provider
Claude Sonnet 4.5 vs Grok 4 Fast (free)New provider
Claude Sonnet 4.5 vs Grok 4.1 FastNew provider