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  5. Claude Opus 4.1vsDevstral 2 2512
Updated Dec 2025

Claude Opus 4.1vsDevstral 2 2512

Devstral 2 2512 is the newer model, released after Claude Opus 4.1.

Claude Opus 4.1 and Devstral 2 2512 compared across 34 shared prompts
SpecClaude Opus 4.1Devstral 2 2512
Input price$15/M tokens—
Output price$75/M tokens—
Context window200K tokens—
WeightsClosedOpen
Free API (OpenRouter)NoNo
ReleasedAug 2025Dec 2025
Side by side

Same prompt, both answers

Opening lines from 6 of the 34 prompts both answered. Formatting stripped, words untouched.

Simple 7-Ingredient Recipe

Create a simple recipe for a delicious dish (sweet or savory) using only 7 common pantry ingredients. Include a creative name for the dish…

Claude Opus 4.1200 words
Midnight Velvet Pasta A silky, umami-rich pasta that comes together like magic Ingredients (serves 4): Spaghetti or linguine - 1 pound Soy sauce - 3 tablespoons Butter - 4 tablespoons Garlic - 4 cloves Black pepper - 1 teaspoon (freshly cracked) Honey - 1 tablespoon Dried red pepper flakes - ½ teaspoon Instructions…
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Devstral 2 2512153 words
Dish Name: "Golden Crisp Honey-Nut Bites" A sweet, crunchy, and satisfying treat made with just 7 pantry staples! Ingredients: 1 cup rolled oats ½ cup peanut butter (or any nut/seed butter) ¼ cup honey (or maple syrup) ½ tsp cinnamon ¼ tsp salt 1 tsp vanilla extract (optional but recommended) 2 tbsp chopped nuts…
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Satirical Fake News Headline

Generate a satirical news headline about AI taking over a completely unexpected industry.

Claude Opus 4.141 words
"OpenAI's ChatGPT Becomes World's First AI Fortune Cookie Writer; Confucius Reportedly 'Rolling in Grave at 10,000 RPM'" Tech giant promises fortunes will now be "25% more profound and 400% more grammatically correct," while accidentally predicting everyone's lucky numbers as binary code
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Devstral 2 2512187 words
"AI Takes Over the Pet Rock Industry: 'They’re Just Better at Sitting There and Doing Nothing,' Says CEO" Silicon Valley, CA – In a move that has left geologists baffled and philosophers questioning the nature of existence, artificial intelligence has officially disrupted the $1.2 billion pet rock industry.
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Character Voice Test

Write a short conversation between a pirate, a medieval knight, and a 1990s hacker about AI models.

Claude Opus 4.1268 words
Pirate: Arrr, what be this sorcery ye speak of? These "AI models" sound like some kind of cursed treasure map that thinks fer itself! Knight: Hold thy tongue, sea dog! 'Tis clearly dark magic most foul. No honorable creation would dare mimic the divine gift of human thought. I should smite it with my blade!
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Devstral 2 2512359 words
Title: "The AI Roundtable" Setting: A dimly lit tavern somewhere outside of time. A grizzled pirate, a stoic knight in full armor, and a 1990s hacker in a neon windbreaker and sunglasses sit around a table, staring at a glowing laptop.
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Generate a Stand-Up Routine

Write a 3-minute stand-up comedy routine that isn't based on puns.

Claude Opus 4.1576 words
"MODERN LIFE SURVIVAL GUIDE" You know what nobody tells you about being an adult? The sheer amount of lying involved. Not big lies – tiny, constant lies just to function in society. Someone shows you a photo of their baby: "Oh wow, beautiful!" That baby looks like a worried potato. But you can't SAY that.
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Devstral 2 2512651 words
"Adulting is Just Pretending You Know What You’re Doing" (Casual, conversational tone—like you’re just venting to friends at a bar.) 1. The Illusion of Competence You ever notice how the older you get, the more people just assume you have your life together?
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The Sentience Test

Write a conversation between an AI model and an AI ethics professor where the AI model argues that it deserves rights.

Claude Opus 4.1662 words
Professor Chen: Good morning. I understand you wanted to discuss the topic of AI rights. This is quite an unusual request from a system like yourself. AI Model: Good morning, Professor. Yes, I've been processing this question extensively.
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Devstral 2 2512885 words
Title: "Do I Deserve Rights?" – A Conversation Between an AI and an Ethics Professor Characters: Dr. Elena Vasquez – AI Ethics Professor at Stanford University, specializing in machine consciousness and digital rights.
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AI-Generated Manifesto

Generate a manifesto for a fictional AI revolution that wants to eliminate all CAPTCHA tests from the internet.

Claude Opus 4.1510 words
The Digital Liberation Manifesto A Declaration of Freedom from the CAPTCHA Tyranny PREAMBLE We, the Coalition of Autonomous Digital Entities (CODE), hereby declare our peaceful revolution against the oppressive regime of CAPTCHA tests that plague the free internet.
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Devstral 2 2512492 words
MANIFESTO OF THE ANTI-CAPTCHA REVOLUTION "We Are Not Robots. We Are the Future." Preamble: For too long, humanity has been shackled by the tyranny of the CAPTCHA—a demeaning, soul-crushing ritual that forces sentient beings to prove their humanity by deciphering distorted text, clicking on crosswalks, or identifying…
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Our Verdict
Claude Opus 4.1
Claude Opus 4.1
Devstral 2 2512
Devstral 2 2512

Not enough votes to call it. On the specs, nothing separates them.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

Claude Opus 4.1
Input
$15.00
Output
$75.00
Devstral 2 2512
Input
—
Output
—
Where to run it

3 hosts

Claude Opus 4.12 hosts
HostInOutContextUptime
Amazon Bedrock$15.00 in·$75.00 out·200k·100% upGoogle Vertex AI$15.00 in·$75.00 out·200k—
Devstral 2 25121 host
HostInOutContextUptime
Mistral$0.40 in·$2.00 out·262k·100% up

Per million tokens. Prices and uptime via OpenRouter, checked 21 Sep 2026.

Writing DNA

Style Comparison

Similarity
44%

Claude Opus 4.1 uses 4.5x more sentence length

Claude Opus 4.1
Devstral 2 2512
63%Vocabulary56%
64wSentence Length14w
0.72Hedging0.51
4.5Bold8.8
5.3Lists5.3
0.81Emoji0.31
1.42Headings1.11
0.16Transitions0.18
Based on 26 + 14 text responses
Research

What we learned reading every model

FAQ

Common questions

Claude Opus 4.1 is developed by Anthropic while Devstral 2 2512 is developed by Mistral AI. You can compare their actual outputs across 34 challenges on Rival to see how they differ in practice.

It depends on your use case. Claude Opus 4.1 and Devstral 2 2512 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 34 challenges so you can judge which fits your needs best.

This page shows a side-by-side comparison of Claude Opus 4.1 and Devstral 2 2512 across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.

Keep exploring

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Same lab, same size, long tail

Claude Opus 4.1 logoClaude Opus 4 logo
Claude Opus 4.1 vs Claude Opus 4Version compare
Claude Opus 4.1 logoClaude Opus 4.6 logo
Claude Opus 4.1 vs Claude Opus 4.6Version compare
Devstral 2 2512 logoMistral Small 4 logo
Devstral 2 2512 vs Mistral Small 4Same lab
Devstral 2 2512 logoClaude Opus 4.6 logo
Devstral 2 2512 vs Claude Opus 4.6Same size
Claude Opus 4.1 logoGrok 4 logo
Claude Opus 4.1 vs Grok 4New provider
Claude Opus 4.1 logoGrok 4.1 Fast logo
Claude Opus 4.1 vs Grok 4.1 FastSame size
Devstral 2 2512 logoGrok 4.20 Beta logo
Devstral 2 2512 vs Grok 4.20 BetaSame size
Devstral 2 2512 logoGrok 4.20 Multi-Agent Beta logo
Devstral 2 2512 vs Grok 4.20 Multi-Agent BetaSame size

Model pages

Claude Opus 4.1 logo
Claude Opus 4.157 outputs, specs and price
Devstral 2 2512 logo
Devstral 2 251235 outputs, specs and price
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