What is the difference between Grok 3 and Mistral Small 4?

Grok 3 is developed by xAI while Mistral Small 4 is developed by Mistral AI. Grok 3 has a 128K token context window vs Mistral Small 4's 262K. You can compare their actual outputs across 27 challenges on Rival to see how they differ in practice.

Which is better, Grok 3 or Mistral Small 4?

It depends on your use case. Grok 3 and Mistral Small 4 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 27 challenges so you can judge which fits your needs best.

How can I compare Grok 3 and Mistral Small 4 on Rival?

This page shows a side-by-side comparison of Grok 3 and Mistral Small 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

Grok 3vsMistral Small 4

27 fights queued

Why Grok 3?

Dead even. This one's a coin flip.

Why Mistral Small 4?

2x more context262K

13 months newerMar 2026

Favorites

Grok 3Mistral Small 4

Movie

—

The Dark Knight

20088.5

Album

—

OK Computer

Radiohead

Book

—

Братья Карамазовы

Фёдор Михайлович Достоевский

City

—

Kyoto

Japan

Game

—

The Legend of Zelda: Breath of the Wild

Adventure, Action4.5

6 / 27

Estimate Complexityreasoning

Tests an AI's ability to make educated estimates based on technical knowledge

Grok 3

Xai · Feb 2025text

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

Try this prompt

Mistral Small 4

Mistral · Mar 2026text

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

Try this prompt

Vote

2 / 27

AI Board Game Logicreasoning

Tests an AI's ability to understand game rules and strategy

Grok 3

Xai · Feb 2025svg

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

Try this prompt

Mistral Small 4

Mistral · Mar 2026svg

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

Try this prompt

Vote

3 / 27

Stochastic Consistency Testanalysis

Tests an AI's randomness and creativity

Grok 3

Xai · Feb 2025text

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

Try this prompt

Mistral Small 4

Mistral · Mar 2026text

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

Try this prompt

Vote

4 / 27

SVG Layout Challengeimage generation

Tests an AI's ability to generate vector graphics

Grok 3

Xai · Feb 2025svg

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

Try this prompt

Mistral Small 4

Mistral · Mar 2026svg

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

Try this prompt

Vote

5 / 27

Xbox Controller SVG Artimage generation

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

Grok 3

Xai · Feb 2025svg

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

Try this prompt

Mistral Small 4

Mistral · Mar 2026svg

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

Try this prompt

Vote

6 / 27

Generate a Stand-Up Routineconversation

Tests an AI's humor and creative writing ability

Grok 3

Xai · Feb 2025text

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

Try this prompt

Mistral Small 4

Mistral · Mar 2026text

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

Grok 3

Mistral Small 4

No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.

Too close to call

These are our prompts. Yours will tell you more.

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FAQ

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Grok 3 vs Mistral Small 4

Which is better, Grok 3 or Mistral Small 4?