What is the difference between Claude Sonnet 5 and Mistral Small 4?

Claude Sonnet 5 is developed by Anthropic while Mistral Small 4 is developed by Mistral AI. Claude Sonnet 5 has a 1.0M token context window vs Mistral Small 4's 262K. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, Claude Sonnet 5 or Mistral Small 4?

It depends on your use case. Claude Sonnet 5 and Mistral Small 4 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 much does Claude Sonnet 5 cost compared to Mistral Small 4?

Claude Sonnet 5 costs $2/M input tokens and Mistral Small 4 costs $0.15/M input tokens. Mistral Small 4 is $1.85/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 Claude Sonnet 5 and Mistral Small 4 on Rival?

This page shows a side-by-side comparison of Claude Sonnet 5 and Mistral Small 4 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.

Updated Jun 2026

Claude Sonnet 5vsMistral Small 4

Mistral Small 4 is cheaper than Claude Sonnet 5 at $0.15/M vs $2/M input tokens.

Claude Sonnet 5 and Mistral Small 4 compared across 53 shared prompts
Spec	Claude Sonnet 5	Mistral Small 4
Input price	$2/M tokens	$0.15/M tokens
Output price	$10/M tokens	$0.6/M tokens
Context window	1.0M tokens	262K tokens
Weights	Closed	Open
Free API (OpenRouter)	No	No
Released	Jun 2026	Mar 2026