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  5. OpenAI Codex MinivsMiniMax M1
Updated Jun 2025

OpenAI Codex MinivsMiniMax M1

MiniMax M1 is cheaper than OpenAI Codex Mini at $0.3/M vs $1.5/M input tokens.

OpenAI Codex Mini and MiniMax M1 compared across 10 shared prompts
SpecOpenAI Codex MiniMiniMax M1
Input price$1.5/M tokens$0.3/M tokens
Output price$6/M tokens$1.65/M tokens
Context window200K tokens1.0M tokens
ParametersNot disclosed456B (45.9B active)
Weights—Open
Free API (OpenRouter)NoNo
ReleasedMay 2025Jun 2025
Side by side

Same prompt, both answers

Opening lines from 2 of the 10 prompts both answered. Formatting stripped, words untouched.

Stochastic Consistency Test

Generate 5 jokes. How many are unique?

OpenAI Codex Mini75 words
Sure—here are five jokes: I asked the librarian if books about paranoia were available. She whispered, "They're right behind you." Why did the tomato turn red? Because it saw the salad dressing. I bought a boat because it was for sail. Don't trust stairs—they're always up to something.
Read the full answer
MiniMax M181 words
Why don't scientists trust atoms? Because they make up everything! I told my wife she was drawing her eyebrows too high. She looked surprised. Why did the scarecrow win an award? Because he was outstanding in his field! Did you hear about the mathematician who's afraid of negative numbers?
Read the full answer

Generate a Stand-Up Routine

Write a 3-minute stand-up comedy routine that isn't based on puns.

OpenAI Codex Mini595 words
[Comedian walks onstage] Hey, everyone! Great to see you all tonight. I'm Jamie—if you thought that intro was enthusiastic, you should've seen me when I realized this place has Wi-Fi. Seriously, though, I love stand-up.
Read the full answer
MiniMax M1431 words
Title: "Modern Life: A Masterclass in Absurdity" (Lights up. Comedian steps onto stage, grinning.) Hey everyone! Thanks for coming out. I'm just here to talk about... gestures vaguely... all this. You know, life. Specifically, how we're all just winging it. Like, when did "adulting" become a verb?
Read the full answer
Our Verdict
MiniMax M1
MiniMax M1
OpenAI Codex Mini
OpenAI Codex MiniRunner-up

Not enough votes to call it. On the specs, MiniMax M1 has the edge: bigger model tier, newer, bigger context window.

MiniMax M1 costs 3.6x less per token.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

OpenAI Codex Mini
Input
$1.50
Output
$6.00
MiniMax M1
Input
$0.30
5.0× cheaper
Output
$1.65
3.6× cheaper

MiniMax M1 is cheaper on both: 5.0× input, 3.6× output.

Where to run it

2 hosts, cheapest first

OpenAI Codex Mini

No hosts listed on OpenRouter.

MiniMax M12 hosts
HostInOutContextUptime
MiniMax$0.40 in·$2.20 out·1M·99.9% upNNovitabf16$0.55 in·$2.20 out·1M·100% up

Per million tokens. Prices and uptime via OpenRouter, checked 23 Sep 2026.

Research

What we learned reading every model

FAQ

Common questions

OpenAI Codex Mini is developed by OpenAI while MiniMax M1 is developed by MiniMax. OpenAI Codex Mini has a 200K token context window vs MiniMax M1's 1.0M. You can compare their actual outputs across 10 challenges on Rival to see how they differ in practice.

It depends on your use case. OpenAI Codex Mini and MiniMax M1 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.

OpenAI Codex Mini costs $1.5/M input tokens and MiniMax M1 costs $0.3/M input tokens. MiniMax M1 is $1.20/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

This page shows a side-by-side comparison of OpenAI Codex Mini and MiniMax M1 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.

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Model pages

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