What is the difference between Mistral Devstral Small 1.1 and xAI: Grok 4 Fast (free)?

Mistral Devstral Small 1.1 is developed by Mistral AI while xAI: Grok 4 Fast (free) is developed by xAI. You can compare their actual outputs across 35 challenges on Rival to see how they differ in practice.

Which is better, Mistral Devstral Small 1.1 or xAI: Grok 4 Fast (free)?

It depends on your use case. Mistral Devstral Small 1.1 and xAI: Grok 4 Fast (free) each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 35 challenges so you can judge which fits your needs best.

How much does Mistral Devstral Small 1.1 cost compared to xAI: Grok 4 Fast (free)?

Mistral Devstral Small 1.1 costs $0.1/M input tokens and xAI: Grok 4 Fast (free) costs $0/M input tokens. xAI: Grok 4 Fast (free) is $0.10/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 Devstral Small 1.1 and xAI: Grok 4 Fast (free) on Rival?

This page shows a side-by-side comparison of Mistral Devstral Small 1.1 and xAI: Grok 4 Fast (free) 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 Mistral Devstral Small 1.1 and xAI: Grok 4 Fast (free)?

Mistral Devstral Small 1.1 is developed by Mistral AI while xAI: Grok 4 Fast (free) is developed by xAI. You can compare their actual outputs across 35 challenges on Rival to see how they differ in practice.

Which is better, Mistral Devstral Small 1.1 or xAI: Grok 4 Fast (free)?

It depends on your use case. Mistral Devstral Small 1.1 and xAI: Grok 4 Fast (free) each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 35 challenges so you can judge which fits your needs best.

How much does Mistral Devstral Small 1.1 cost compared to xAI: Grok 4 Fast (free)?

Mistral Devstral Small 1.1 costs $0.1/M input tokens and xAI: Grok 4 Fast (free) costs $0/M input tokens. xAI: Grok 4 Fast (free) is $0.10/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 Devstral Small 1.1 and xAI: Grok 4 Fast (free) on Rival?

This page shows a side-by-side comparison of Mistral Devstral Small 1.1 and xAI: Grok 4 Fast (free) 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.

Mistral Devstral Small 1.1 vs xAI: Grok 4 Fast (free): Which Is Better?

Updated Sep 2025

Our Verdict

xAI: Grok 4 Fast (free)

Mistral Devstral Small 1.1Runner-up

No community votes yet. On paper, xAI: Grok 4 Fast (free) has the edge — bigger model tier, newer, bigger context window, major provider backing.

Slight edge

API pricing

Cost per 1M tokens

Mistral Devstral Small 1.1

Input

$0.10

Output

$0.30

xAI: Grok 4 Fast (free)

Input

$0.000

Output

$0.000

Writing DNA

Style Comparison

Similarity

48%

xAI: Grok 4 Fast (free) uses 32.6x more headings

Mistral Devstral Small 1.1

xAI: Grok 4 Fast (free)

50%Vocabulary65%

17wSentence Length13w

0.56Hedging0.56

4.3Bold1.4

5.7Lists2.5

0.00Emoji0.00

0.05Headings1.58

0.34Transitions0.28

Based on 21 + 14 text responses

Research

What we learned reading every model

Mistral Devstral Small 1.1 and xAI: Grok 4 Fast (free) 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

Mistral Devstral Small 1.1 vs MiniMax M3New provider

Mistral Devstral Small 1.1 vs GPT-4.1 NanoNew provider

Mistral Devstral Small 1.1 vs Claude Sonnet 4New provider

Updated Sep 2025

Our Verdict

xAI: Grok 4 Fast (free)

Mistral Devstral Small 1.1Runner-up

No community votes yet. On paper, xAI: Grok 4 Fast (free) has the edge — bigger model tier, newer, bigger context window, major provider backing.

Slight edge

API pricing

Cost per 1M tokens

Mistral Devstral Small 1.1

Input

$0.10

Output

$0.30

xAI: Grok 4 Fast (free)

Input

$0.000

Output

$0.000

Writing DNA

Style Comparison

Similarity

48%

xAI: Grok 4 Fast (free) uses 32.6x more headings

Mistral Devstral Small 1.1

xAI: Grok 4 Fast (free)

50%Vocabulary65%

17wSentence Length13w

0.56Hedging0.56

4.3Bold1.4

5.7Lists2.5

0.00Emoji0.00

0.05Headings1.58

0.34Transitions0.28

Based on 21 + 14 text responses

Research

What we learned reading every model

Mistral Devstral Small 1.1 and xAI: Grok 4 Fast (free) 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

Mistral Devstral Small 1.1 vs MiniMax M3New provider

Mistral Devstral Small 1.1 vs GPT-4.1 NanoNew provider

Mistral Devstral Small 1.1 vs Claude Sonnet 4New provider