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  1. Home/
  2. Compare/
  3. OpenAI Codex Mini vs MiMo-V2.6-Pro
Updated Sep 2026

OpenAI Codex Mini vs MiMo-V2.6-Pro

MiMo-V2.6-Pro is cheaper than OpenAI Codex Mini at $0.435/M vs $1.5/M input tokens.

Pokémon Battle UI Recreation

Pokémon battle screen you can actually click. One HTML file.

Loading the build
OpenAI Codex Mini
Loading the build
MiMo-V2.6-Pro

Which answer wins?

Written rounds

2 prompts
  • Three minutes of stand-up. Puns are banned.

    OpenAI Codex Mini: [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.

    MiMo-V2.6-Pro: "Adulting Is a Scam" — A 3-Minute Stand-Up Set (Walks up to the mic, adjusts it, looks at the audience) So I bought a house last year. That's supposed to be like... the American Dream, right? The real estate agent was like, "Congratulations, you're a homeowner now!" Yeah, thanks. I'm also a prisoner.

    Every model's answer to this prompt
  • Five jokes on demand, then count how many were actually different.

    OpenAI Codex Mini: 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.

    MiMo-V2.6-Pro: Here are 5 jokes: 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! What do you call a fake noodle? An impasta! I'm reading a book about anti-gravity.

    Every model's answer to this prompt

Price and specs

Not enough votes to call it. On the specs, MiMo-V2.6-Pro has the edge: bigger model tier, newer, bigger context window. MiMo-V2.6-Pro costs 6.9x less per token.

OpenAI Codex Mini and MiMo-V2.6-Pro compared across 9 shared prompts
SpecOpenAI Codex MiniMiMo-V2.6-Pro
Input price$1.5/M tokens$0.435/M tokens
Output price$6/M tokens$0.87/M tokens
Context window200K tokens1.0M tokens
Weights—Open
Free API (OpenRouter)NoNo
ReleasedMay 2025Sep 2026
At 10M a month$15.00$15.00$4.35$4.35
1M10M100M1B10M tokens

Input tokens at list price. No caching, no batch discount.

Where to run it4 hosts
OpenAI Codex Mini

No hosts listed on OpenRouter.

MiMo-V2.6-Pro4 hosts
HostInOutContextUptime
  • DDeepInfrafp8$0.43 in·$0.87 out·1M·100% up
  • GGMI Cloudbf16DegradedDegraded on OpenRouter when checked, 10 Oct 2026$0.43 in·$0.87 out·1.1M·92.8% up
  • NNovitafp8DegradedDegraded on OpenRouter when checked, 10 Oct 2026$0.43 in·$0.87 out·1M·92.9% up
  • Xiaomifp8DegradedDegraded on OpenRouter when checked, 10 Oct 2026$0.43 in·$0.87 out·1M·95.8% up

Per million tokens. Prices and uptime via OpenRouter, checked 10 Oct 2026.

Common questions

What is the difference between OpenAI Codex Mini and MiMo-V2.6-Pro?

OpenAI Codex Mini is developed by OpenAI while MiMo-V2.6-Pro is developed by Xiaomi. OpenAI Codex Mini has a 200K token context window vs MiMo-V2.6-Pro's 1.0M. You can compare their actual outputs across 9 challenges on Rival to see how they differ in practice.

Which is better, OpenAI Codex Mini or MiMo-V2.6-Pro?

It depends on your use case. OpenAI Codex Mini and MiMo-V2.6-Pro each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 9 challenges so you can judge which fits your needs best.

How much does OpenAI Codex Mini cost compared to MiMo-V2.6-Pro?

OpenAI Codex Mini costs $1.5/M input tokens and MiMo-V2.6-Pro costs $0.435/M input tokens. MiMo-V2.6-Pro is $1.06/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 MiMo-V2.6-Pro on Rival?

This page shows a side-by-side comparison of OpenAI Codex Mini and MiMo-V2.6-Pro 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.

More comparisons

Against the newest arrivals

  • OpenAI Codex Mini vs Step 5 PreviewLanded Oct 2026
  • MiMo-V2.6-Pro vs Claude Haiku 5.5Landed Oct 2026
  • OpenAI Codex Mini vs Ling 3.1 FlashLanded Oct 2026
  • MiMo-V2.6-Pro vs Mistral Large 4Landed Oct 2026
  • OpenAI Codex Mini vs GPT-6.1 SolLanded Sep 2026
  • MiMo-V2.6-Pro vs Claude Sonnet 5.5Landed Sep 2026
  • OpenAI Codex Mini vs Solar Mini 4Landed Sep 2026
  • MiMo-V2.6-Pro vs Qwen3.8 Max PrimeLanded Sep 2026

Same lab, same size, long tail

  • OpenAI Codex Mini vs GPT-6 Luna ProSame lab
  • OpenAI Codex Mini vs GPT-6 Sol ProSame lab
  • MiMo-V2.6-Pro vs MiMo-V2.6-FlashSame lab
  • MiMo-V2.6-Pro vs MiMo-V2.5Same lab
  • MiMo-V2.6-Pro vs GPT-5 MiniCross-provider
  • MiMo-V2.6-Pro vs GPT-5 NanoCross-provider
  • MiMo-V2.6-Pro vs GPT-5 ProCross-provider
  • MiMo-V2.6-Pro vs GPT-5.1Cross-provider

Model pages

  • OpenAI Codex Mini10 outputs, specs and price
  • MiMo-V2.6-Pro53 outputs, specs and price
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