What is the difference between Grok 3 and Mistral Medium 3.1?

Grok 3 is developed by xAI while Mistral Medium 3.1 is developed by Mistral AI. Grok 3 has a 128K token context window vs Mistral Medium 3.1's 131K. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, Grok 3 or Mistral Medium 3.1?

It depends on your use case. Grok 3 and Mistral Medium 3.1 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.

How can I compare Grok 3 and Mistral Medium 3.1 on Rival?

This page shows a side-by-side comparison of Grok 3 and Mistral Medium 3.1 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.

What is the difference between Grok 3 and Mistral Medium 3.1?

Grok 3 is developed by xAI while Mistral Medium 3.1 is developed by Mistral AI. Grok 3 has a 128K token context window vs Mistral Medium 3.1's 131K. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, Grok 3 or Mistral Medium 3.1?

It depends on your use case. Grok 3 and Mistral Medium 3.1 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.

How can I compare Grok 3 and Mistral Medium 3.1 on Rival?

This page shows a side-by-side comparison of Grok 3 and Mistral Medium 3.1 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.

Grok 3 vs Mistral Medium 3.1: Which Is Better?

Updated Aug 2025

Our Verdict

Grok 3

Mistral Medium 3.1Runner-up

No community votes yet. On paper, Grok 3 has the edge — bigger model tier, major provider backing.

Too close to call

API pricing

Cost per 1M tokens

Grok 3

Input

—

Output

—

Mistral Medium 3.1

Input

$0.40

Output

$2.00

Writing DNA

Style Comparison

Similarity

45%

Mistral Medium 3.1 uses 10.0x more emoji

Grok 3

Mistral Medium 3.1

49%Vocabulary52%

18wSentence Length22w

0.94Hedging0.45

2.5Bold10.4

3.0Lists5.9

0.04Emoji0.39

0.65Headings1.12

0.08Transitions0.18

Based on 17 + 22 text responses

Research

What we learned reading every model

Grok 3 and Mistral Medium 3.1 have opinions about your brand too.Ask 10 models what they tell people about you. Verbatim receipts.Run the mirror

FAQ

Common questions

Keep exploring

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Grok 3 vs OpenAI o3New provider

Grok 3 vs Llama 4 MaverickNew provider

Updated Aug 2025

Our Verdict

Grok 3

Mistral Medium 3.1Runner-up

No community votes yet. On paper, Grok 3 has the edge — bigger model tier, major provider backing.

Too close to call

API pricing

Cost per 1M tokens

Grok 3

Input

—

Output

—

Mistral Medium 3.1

Input

$0.40

Output

$2.00

Writing DNA

Style Comparison

Similarity

45%

Mistral Medium 3.1 uses 10.0x more emoji

Grok 3

Mistral Medium 3.1

49%Vocabulary52%

18wSentence Length22w

0.94Hedging0.45

2.5Bold10.4

3.0Lists5.9

0.04Emoji0.39

0.65Headings1.12

0.08Transitions0.18

Based on 17 + 22 text responses

Research

What we learned reading every model

Grok 3 and Mistral Medium 3.1 have opinions about your brand too.Ask 10 models what they tell people about you. Verbatim receipts.Run the mirror

FAQ

Common questions

Keep exploring

More comparisons

Grok 3 vs MiniMax M3New provider

Grok 3 vs OpenAI o3New provider

Grok 3 vs Llama 4 MaverickNew provider