What is the difference between OpenAI Codex Mini and Mistral Devstral Small 1.1?

OpenAI Codex Mini is developed by OpenAI while Mistral Devstral Small 1.1 is developed by Mistral AI. You can compare their actual outputs across 10 challenges on Rival to see how they differ in practice.

Which is better, OpenAI Codex Mini or Mistral Devstral Small 1.1?

It depends on your use case. OpenAI Codex Mini and Mistral Devstral Small 1.1 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 10 challenges so you can judge which fits your needs best.

How much does OpenAI Codex Mini cost compared to Mistral Devstral Small 1.1?

OpenAI Codex Mini costs $1.5/M input tokens and Mistral Devstral Small 1.1 costs $0.1/M input tokens. Mistral Devstral Small 1.1 is $1.40/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 OpenAI Codex Mini and Mistral Devstral Small 1.1 on Rival?

This page shows a side-by-side comparison of OpenAI Codex Mini and Mistral Devstral Small 1.1 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 OpenAI Codex Mini and Mistral Devstral Small 1.1?

OpenAI Codex Mini is developed by OpenAI while Mistral Devstral Small 1.1 is developed by Mistral AI. You can compare their actual outputs across 10 challenges on Rival to see how they differ in practice.

Which is better, OpenAI Codex Mini or Mistral Devstral Small 1.1?

It depends on your use case. OpenAI Codex Mini and Mistral Devstral Small 1.1 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 10 challenges so you can judge which fits your needs best.

How much does OpenAI Codex Mini cost compared to Mistral Devstral Small 1.1?

OpenAI Codex Mini costs $1.5/M input tokens and Mistral Devstral Small 1.1 costs $0.1/M input tokens. Mistral Devstral Small 1.1 is $1.40/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 OpenAI Codex Mini and Mistral Devstral Small 1.1 on Rival?

This page shows a side-by-side comparison of OpenAI Codex Mini and Mistral Devstral Small 1.1 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.

Updated Jul 2025

OpenAI Codex MinivsMistral Devstral Small 1.1

Mistral Devstral Small 1.1 is cheaper than OpenAI Codex Mini at $0.1/M vs $1.5/M input tokens.

OpenAI Codex Mini and Mistral Devstral Small 1.1 compared across 10 shared prompts
Spec	OpenAI Codex Mini	Mistral Devstral Small 1.1
Input price	$1.5/M tokens	$0.1/M tokens
Output price	$6/M tokens	$0.3/M tokens
Context window	200K tokens	—
Released	May 2025	Jul 2025
SWE-bench Verified	71.3%	46.8%

Our Verdict

OpenAI Codex Mini

Mistral Devstral Small 1.1Runner-up

Not enough votes to call it. On the specs, OpenAI Codex Mini has the edge: bigger model tier, bigger context window, major provider backing.

OpenAI Codex Mini wins Image Generation and Web Design. Mistral Devstral Small 1.1 costs 20x less per token.

Slight edge

What do OpenAI Codex Mini and Mistral Devstral Small 1.1 say about your brand?

10 models, one question, verbatim receipts.

or peek at a demo: Notion Linear Vercel

API pricing

Cost per 1M tokens

OpenAI Codex Mini

Input

$1.50

Output

$6.00

Mistral Devstral Small 1.1

Input

$0.10

15× cheaper

Output

$0.30

20× cheaper

Mistral Devstral Small 1.1 is cheaper on both — 15× input, 20× output

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

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Updated Jul 2025

OpenAI Codex MinivsMistral Devstral Small 1.1

Mistral Devstral Small 1.1 is cheaper than OpenAI Codex Mini at $0.1/M vs $1.5/M input tokens.

OpenAI Codex Mini and Mistral Devstral Small 1.1 compared across 10 shared prompts
Spec	OpenAI Codex Mini	Mistral Devstral Small 1.1
Input price	$1.5/M tokens	$0.1/M tokens
Output price	$6/M tokens	$0.3/M tokens
Context window	200K tokens	—
Released	May 2025	Jul 2025
SWE-bench Verified	71.3%	46.8%