What is the difference between Mistral Devstral Small 1.1 and OpenAI o4-mini?

Mistral Devstral Small 1.1 is developed by Mistral AI while OpenAI o4-mini is developed by OpenAI. You can compare their actual outputs across 54 challenges on Rival to see how they differ in practice.

Which is better, Mistral Devstral Small 1.1 or OpenAI o4-mini?

It depends on your use case. Mistral Devstral Small 1.1 and OpenAI o4-mini 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 Mistral Devstral Small 1.1 cost compared to OpenAI o4-mini?

Mistral Devstral Small 1.1 costs $0.1/M input tokens and OpenAI o4-mini costs $1.1/M input tokens. Mistral Devstral Small 1.1 is $1.00/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 OpenAI o4-mini on Rival?

This page shows a side-by-side comparison of Mistral Devstral Small 1.1 and OpenAI o4-mini 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 Jul 2025

Mistral Devstral Small 1.1vsOpenAI o4-mini

Mistral Devstral Small 1.1 is cheaper than OpenAI o4-mini at $0.1/M vs $1.1/M input tokens.

Mistral Devstral Small 1.1 and OpenAI o4-mini compared across 54 shared prompts
Spec	Mistral Devstral Small 1.1	OpenAI o4-mini
Input price	$0.1/M tokens	$1.1/M tokens
Output price	$0.3/M tokens	$4.4/M tokens
Weights	Open	Closed
Free API (OpenRouter)	No	No
Released	Jul 2025	Apr 2025
SWE-bench Verified	46.8%	68.1%