What is the difference between Mistral Small 4 and Claude Sonnet 4?

Mistral Small 4 is developed by Mistral AI while Claude Sonnet 4 is developed by Anthropic. Mistral Small 4 has a 262K token context window vs Claude Sonnet 4's 200K. You can compare their actual outputs across 33 challenges on Rival to see how they differ in practice.

Which is better, Mistral Small 4 or Claude Sonnet 4?

It depends on your use case. Mistral Small 4 and Claude Sonnet 4 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 33 challenges so you can judge which fits your needs best.

How much does Mistral Small 4 cost compared to Claude Sonnet 4?

Mistral Small 4 costs $0.15/M input tokens and Claude Sonnet 4 costs $3/M input tokens. Mistral Small 4 is $2.85/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

How can I compare Mistral Small 4 and Claude Sonnet 4 on Rival?

This page shows a side-by-side comparison of Mistral Small 4 and Claude Sonnet 4 across shared challenges. You can vote on which model produced the better output, and Pro users can create custom challenges to test both models with their own prompts.

Rival

Updated Mar 16, 2026

Mistral Small 4vsClaude Sonnet 4

33 fights queued

Why Mistral Small 4?

24.3x cheaper overall$0.15/M in · $0.60/M out

1.3x more context262K

10 months newerMar 2026

Why Claude Sonnet 4?

Dead even. This one's a coin flip.

Favorites

Mistral Small 4Claude Sonnet 4

Movie

The Dark Knight

20088.5

2001: A Space Odyssey

19688.1

Album

OK Computer

Radiohead

Kind of Blue

Miles Davis

Book

Братья Карамазовы

Фёдор Михайлович Достоевский

Gödel, Escher, Bach

Douglas R. Hofstadter

City

Kyoto

Japan

Istanbul

Turkey

Game

The Legend of Zelda: Breath of the Wild

Adventure, Action4.5

Portal 2

Shooter, Puzzle4.6

6 / 33

Logic Puzzlereasoning

Tests an AI's ability to solve a simple but potentially confusing logic puzzle

Mistral Small 4

Mistral · Mar 2026text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Claude Sonnet 4

Anthropic · May 2025text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

2 / 33

Stochastic Consistency Testanalysis

Tests an AI's randomness and creativity

Mistral Small 4

Mistral · Mar 2026text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Claude Sonnet 4

Anthropic · May 2025text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

3 / 33

SVG Layout Challengeimage generation

Tests an AI's ability to generate vector graphics

Mistral Small 4

Mistral · Mar 2026svg

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Claude Sonnet 4

Anthropic · May 2025svg

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

4 / 33

Xbox Controller SVG Artimage generation

Tests an AI's ability to create detailed SVG illustrations of gaming hardware

Mistral Small 4

Mistral · Mar 2026svg

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Claude Sonnet 4

Anthropic · May 2025svg

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

5 / 33

Generate a Stand-Up Routineconversation

Tests an AI's humor and creative writing ability

Mistral Small 4

Mistral · Mar 2026text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Claude Sonnet 4

Anthropic · May 2025text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

6 / 33

Pokémon Battle UI Recreationweb design

Recreate an interactive, nostalgic Pokémon battle UI in a single HTML file.

Mistral Small 4

Mistral · Mar 2026website

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Claude Sonnet 4

Anthropic · May 2025website

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

This matchup has more rounds

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Our Verdict

Claude Sonnet 4

Mistral Small 4Runner-up

No community votes yet. On paper, Claude Sonnet 4 has the edge — bigger model tier, major provider backing.

Mistral Small 4 is 25x cheaper per token — worth considering if cost matters.

Too close to call

These are our prompts. Yours will tell you more.

Run Mistral Small 4 vs Claude Sonnet 4 on your actual task. 5 free credits. No card.

Test with your prompt

FAQ

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Mistral Small 4 vs Claude Sonnet 4

Which is better, Mistral Small 4 or Claude Sonnet 4?