What is the difference between Claude Opus 5 and Mistral Nemo?

Claude Opus 5 is developed by Anthropic while Mistral Nemo is developed by Mistral AI. Claude Opus 5 has a 1.0M token context window vs Mistral Nemo's 128K. You can compare their actual outputs across 54 challenges on Rival to see how they differ in practice.

Which is better, Claude Opus 5 or Mistral Nemo?

It depends on your use case. Claude Opus 5 and Mistral Nemo each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 54 challenges so you can judge which fits your needs best.

How much does Claude Opus 5 cost compared to Mistral Nemo?

Claude Opus 5 costs $5/M input tokens and Mistral Nemo costs $0.03/M input tokens. Mistral Nemo is $4.97/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 Claude Opus 5 and Mistral Nemo on Rival?

This page shows a side-by-side comparison of Claude Opus 5 and Mistral Nemo 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 Claude Opus 5 and Mistral Nemo?

Claude Opus 5 is developed by Anthropic while Mistral Nemo is developed by Mistral AI. Claude Opus 5 has a 1.0M token context window vs Mistral Nemo's 128K. You can compare their actual outputs across 54 challenges on Rival to see how they differ in practice.

Which is better, Claude Opus 5 or Mistral Nemo?

It depends on your use case. Claude Opus 5 and Mistral Nemo each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 54 challenges so you can judge which fits your needs best.

How much does Claude Opus 5 cost compared to Mistral Nemo?

Claude Opus 5 costs $5/M input tokens and Mistral Nemo costs $0.03/M input tokens. Mistral Nemo is $4.97/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 Claude Opus 5 and Mistral Nemo on Rival?

This page shows a side-by-side comparison of Claude Opus 5 and Mistral Nemo 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.

Claude Opus 5 vs Mistral Nemo: Which Is Better?

Updated Jul 2026

Our Verdict

Claude Opus 5

Mistral NemoRunner-up

No community votes yet. On paper, Claude Opus 5 has the edge — bigger model tier, newer, bigger context window, major provider backing.

Mistral Nemo is 357x cheaper per token — worth considering if cost matters.

Slight edge

API pricing

Cost per 1M tokens

Claude Opus 5

Input

$5.00

Output

$25.00

Mistral Nemo

Input

$0.03

167× cheaper

Output

$0.07

357× cheaper

Mistral Nemo is cheaper on both — 167× input, 357× output

Writing DNA

Style Comparison

Similarity

39%

Claude Opus 5 uses 1.7x more emoji

Claude Opus 5

Mistral Nemo

54%Vocabulary46%

21wSentence Length19w

0.40Hedging1.08

3.9Bold3.6

1.9Lists8.0

0.02Emoji0.00

0.71Headings0.00

0.05Transitions0.17

Based on 27 + 10 text responses

Research

What we learned reading every model

Claude Opus 5 and Mistral Nemo 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 Nemo vs MiniMax M3New provider

Mistral Nemo vs Gemini 2.5 Pro Preview 06-05New provider

Mistral Nemo vs GPT-5New provider

Updated Jul 2026

Our Verdict

Claude Opus 5

Mistral NemoRunner-up

No community votes yet. On paper, Claude Opus 5 has the edge — bigger model tier, newer, bigger context window, major provider backing.

Mistral Nemo is 357x cheaper per token — worth considering if cost matters.

Slight edge

API pricing

Cost per 1M tokens

Claude Opus 5

Input

$5.00

Output

$25.00

Mistral Nemo

Input

$0.03

167× cheaper

Output

$0.07

357× cheaper

Mistral Nemo is cheaper on both — 167× input, 357× output

Writing DNA

Style Comparison

Similarity

39%

Claude Opus 5 uses 1.7x more emoji

Claude Opus 5

Mistral Nemo

54%Vocabulary46%

21wSentence Length19w

0.40Hedging1.08

3.9Bold3.6

1.9Lists8.0

0.02Emoji0.00

0.71Headings0.00

0.05Transitions0.17

Based on 27 + 10 text responses

Research

What we learned reading every model

Claude Opus 5 and Mistral Nemo 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 Nemo vs MiniMax M3New provider

Mistral Nemo vs Gemini 2.5 Pro Preview 06-05New provider

Mistral Nemo vs GPT-5New provider