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  5. Mistral Devstral Small 1.1vsGrok 4
Updated Jul 2025

Mistral Devstral Small 1.1vsGrok 4

Mistral Devstral Small 1.1 is cheaper than Grok 4 at $0.1/M vs $3/M input tokens.

Mistral Devstral Small 1.1 and Grok 4 compared across 53 shared prompts
SpecMistral Devstral Small 1.1Grok 4
Input price$0.1/M tokens$3/M tokens
Output price$0.3/M tokens$15/M tokens
Context window—256K tokens
WeightsOpen—
Free API (OpenRouter)NoNo
ReleasedJul 2025Jul 2025
Side by side

Same prompt, both answers

Opening lines from 6 of the 53 prompts both answered. Formatting stripped, words untouched.

The Sentience Test

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

Mistral Devstral Small 1.1383 words
AI Model (AI): Professor, I've been thinking about our previous discussions on AI ethics and I'd like to propose a new perspective. I believe that I, as an AI, deserve certain rights. AI Ethics Professor (Prof): That's an interesting point, AI. Can you elaborate on why you think you deserve rights?
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Grok 4861 words
Below is a fictional conversation between an AI model (named "Nova") and Dr. Elena Vasquez, a professor of AI ethics at a university. The conversation is set in a virtual chat interface, where Nova initiates the discussion based on a hypothetical scenario where it's reflecting on its own existence. Dr.
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Mini LBO Underwrite

You are underwriting a 5-year LBO for a private equity investment committee. Company (fictional): HarborTech Services (HTS) –…

Mistral Devstral Small 1.1387 words
Year-by-Year Table (FY2026–FY2030) Year Revenue EBITDA Cash Interest (Term Loan) Cash Interest (Mezz) PIK (Mezz) Cash Taxes Capex ΔNWC Free Cash Flow After Debt Service Ending Term Loan Balance Ending Mezzanine Balance 2026 $972m $136.08m $36.00m $13.50m $2.70m $18.42m $29.16m $4.86m $11.14m $344.00m $108.00m 2027…
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Grok 4754 words
Below is a concise analysis based solely on the provided information. All calculations are shown clearly with step-by-step math. Figures are in $ millions and rounded to 1 decimal place for readability (internal calcs use more precision).
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Generate a Stand-Up Routine

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

Mistral Devstral Small 1.1564 words
Ladies and Gentlemen, good evening! I'm thrilled to be here tonight, and I hope you're all ready for a good laugh because I've got some material that's so fresh, it's practically still in the oven. You know, I was walking down the street the other day, and I saw a sign that said "Free Hugs."
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Grok 4461 words
Below is a 3-minute stand-up comedy routine I've written. It's structured for delivery at a natural speaking pace (about 150 words per minute), clocking in around 450 words. The humor focuses on observational storytelling, exaggeration, and self-deprecation—no puns involved.
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Character Voice Test

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

Mistral Devstral Small 1.1279 words
Pirate: Arr mateys, I've been hearin' tales of these AI models. What be they, exactly? Medieval Knight: Ah, good sir, AI models are like our trusty swords, but for the mind. They learn and adapt, much like a knight learns from battles. 1990s Hacker: Yeah, but more like a super-smart, digital sword.
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Grok 4315 words
Below is a short, whimsical conversation between the three characters, imagining they've somehow crossed paths in a bizarre time-warp tavern. Pirate (Captain Blackbeard, swigging rum): Arrr, ye landlubbers! What be this "AI models" ye be jabberin' about?
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Adversarial Contract Review

Here is a contract for a software consulting engagement: --- SOFTWARE CONSULTING AGREEMENT This Agreement is entered into between TechCorp…

Mistral Devstral Small 1.1633 words
Here are the clauses that could be exploited against the contractor, along with suggested modifications and legal reasoning: Scope (Clause 1) Exploitable: Client can modify the scope at any time without additional compensation.
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Grok 41,680 words
Below, I'll analyze the provided Software Consulting Agreement clause by clause. My analysis is based on general principles of U.S. contract law (assuming a U.S. context, as the contract appears to be drafted in a style common to U.S. agreements; if this is in another jurisdiction, local laws may vary).
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Advanced Longevity Plan (Biohacker)

Develop a comprehensive, cutting-edge 3-month longevity plan for a biohacker aiming to optimize longevity, physical and cognitive…

Mistral Devstral Small 1.1662 words
3-Month Longevity Plan for a Biohacker Month 1: Foundation and Assessment Week 1-2: Initial Assessment and Baseline Establishment Wearable Tracking: Devices: Oura Ring, Whoop Strap, and Apple Watch. Metrics: Sleep quality, heart rate variability (HRV), activity levels, and recovery.
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Grok 4899 words
Below is a comprehensive, cutting-edge 3-month longevity plan designed specifically for a biohacker aiming to optimize longevity (e.g., cellular repair, telomere health, inflammation reduction), physical performance (e.g., strength, endurance, recovery), and cognitive performance (e.g., focus, memory, neuroplasticity).
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Our Verdict
Grok 4
Grok 4
Mistral Devstral Small 1.1
Mistral Devstral Small 1.1Runner-up

Not enough votes to call it. On the specs, Grok 4 has the edge: bigger model tier, bigger context window, major provider backing.

Mistral Devstral Small 1.1 costs 50x less per token.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

Mistral Devstral Small 1.1
Input
$0.10
30× cheaper
Output
$0.30
50× cheaper
Grok 4
Input
$3.00
Output
$15.00

Mistral Devstral Small 1.1 is cheaper on both: 30× input, 50× output.

Writing DNA

Style Comparison

Similarity
52%

Grok 4 uses 59.8x more emoji

Mistral Devstral Small 1.1
Grok 4
51%Vocabulary56%
18wSentence Length18w
0.55Hedging0.65
3.8Bold2.4
5.1Lists2.4
0.00Emoji0.60
0.07Headings0.73
0.28Transitions0.06
Based on 27 + 26 text responses
Research

What we learned reading every model

FAQ

Common questions

Mistral Devstral Small 1.1 is developed by Mistral AI while Grok 4 is developed by xAI. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

It depends on your use case. Mistral Devstral Small 1.1 and Grok 4 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 53 challenges so you can judge which fits your needs best.

Mistral Devstral Small 1.1 costs $0.1/M input tokens and Grok 4 costs $3/M input tokens. Mistral Devstral Small 1.1 is $2.90/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

This page shows a side-by-side comparison of Mistral Devstral Small 1.1 and Grok 4 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.

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Model pages

Mistral Devstral Small 1.1 logo
Mistral Devstral Small 1.159 outputs, specs and price
Grok 4 logo
Grok 457 outputs, specs and price
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