Claude Opus 4.1
Nothing here. The model returned empty. We stared at it for a while.
Claude Opus 4.1 vs Mistral Devstral Medium
Compare Claude Opus 4.1 by Anthropic against Mistral Devstral Medium by Mistral AI, tested across 27 shared challenges. Updated April 2026.
Which is better, Claude Opus 4.1 or Mistral Devstral Medium?
Claude Opus 4.1 and Mistral Devstral Medium are both competitive models. Claude Opus 4.1 costs $15/M input tokens vs $0.4/M for Mistral Devstral Medium. Compare their real outputs side by side below.
Key Differences Between Claude Opus 4.1 and Mistral Devstral Medium
Claude Opus 4.1 is made by anthropic while Mistral Devstral Medium is from mistral. On pricing, Claude Opus 4.1 costs $15/M input tokens vs $0.4/M for Mistral Devstral Medium.
Our Verdict
Claude Opus 4.1
Mistral Devstral MediumRunner-up
No community votes yet. On paper, Claude Opus 4.1 has the edge — bigger model tier, bigger context window, major provider backing.
Mistral Devstral Medium is 38x cheaper per token — worth considering if cost matters.
Too close to call
Writing DNA
Style Comparison
Similarity
92%
Claude Opus 4.1 uses 38.4x more emoji
Claude Opus 4.1
Mistral Devstral Medium
61%Vocabulary50%
87wSentence Length17w
0.54Hedging0.56
5.1Bold4.5
6.7Lists5.3
0.38Emoji0.00
1.68Headings0.19
0.13Transitions0.32
Based on 17 + 21 text responses
vsAsk them anything yourself
Some models write identically. You are paying for the brand.
178 models fingerprinted across 32 writing dimensions. Free research.
Model Similarity Index
185x
price gap between models that write identically
178
models
12
clone pairs
32
dimensions
Devstral M / S
95.7%
Qwen3 Coder / Flash
95.6%
GPT-5.4 / Mini
93.3%
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.
Free preview13 of 58 slides
FAQ