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

OpenAI Codex Mini vs MiMo-V2.6-Flash

MiMo-V2.6-Flash is cheaper than OpenAI Codex Mini at $0.14/M vs $1.5/M input tokens.

Interactive Catan Board

Hex grid you can resize with a slider. Geometry plus state.

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

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-Flash: "The Modern Human Experience" So I got a smart watch last year. You know what a smart watch tells you? It tells you everything you're doing wrong. Every single day, this thing is judging me. "You haven't moved in three hours." That's because I'm working, watch. I'm not a Labrador retriever.

    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-Flash: 5 Jokes Why don't scientists trust atoms? Because they make up everything! Why don't scientists trust atoms? Because they make up everything! What do you call a bear with no teeth? A gummy bear! Why did the scarecrow win an award? He was outstanding in his field! What do you call a bear with no teeth? A gummy bear!

    Every model's answer to this prompt

Price and specs

Not enough votes to call it. On the specs, MiMo-V2.6-Flash has the edge: bigger model tier, newer, bigger context window. MiMo-V2.6-Flash costs 21x less per token.

OpenAI Codex Mini and MiMo-V2.6-Flash compared across 7 shared prompts
SpecOpenAI Codex MiniMiMo-V2.6-Flash
Input price$1.5/M tokens$0.14/M tokens
Output price$6/M tokens$0.28/M tokens
Context window200K tokens1.0M tokens
Weights—Open
Free API (OpenRouter)NoNo
ReleasedMay 2025Sep 2026
At 10M a month$15.00$15.00$1.40$1.40
1M10M100M1B10M tokens

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

Where to run it8 hosts, cheapest first
OpenAI Codex Mini

No hosts listed on OpenRouter.

MiMo-V2.6-Flash8 hosts
HostInOutContextUptime
  • DDarkbloomfp4$0.10 in·$0.28 out·1M·99.4% up
  • MMakorafp8$0.13 in·$0.28 out·1M·99.3% up
  • DDeepInfrafp8$0.14 in·$0.28 out·1M·99.2% up
  • NNovitafp8$0.14 in·$0.28 out·1M·99% up
  • Xiaomifp8$0.14 in·$0.28 out·1M·100% up
  • VVenicefp8$0.17 in·$0.35 out·1M·97.5% up
2 more hostsFewer hosts
  • Iio.netfp8$0.29 in·$0.45 out·1M·99.7% up
  • GGMI Cloudbf16DegradedDegraded on OpenRouter when checked, 10 Oct 2026$0.14 in·$0.28 out·1.1M·69.1% 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-Flash?

OpenAI Codex Mini is developed by OpenAI while MiMo-V2.6-Flash is developed by Xiaomi. OpenAI Codex Mini has a 200K token context window vs MiMo-V2.6-Flash's 1.0M. You can compare their actual outputs across 7 challenges on Rival to see how they differ in practice.

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

It depends on your use case. OpenAI Codex Mini and MiMo-V2.6-Flash each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 7 challenges so you can judge which fits your needs best.

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

OpenAI Codex Mini costs $1.5/M input tokens and MiMo-V2.6-Flash costs $0.14/M input tokens. MiMo-V2.6-Flash is $1.36/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-Flash on Rival?

This page shows a side-by-side comparison of OpenAI Codex Mini and MiMo-V2.6-Flash 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-Flash vs Claude Haiku 5.5Landed Oct 2026
  • OpenAI Codex Mini vs Ling 3.1 FlashLanded Oct 2026
  • MiMo-V2.6-Flash vs Mistral Large 4Landed Oct 2026
  • OpenAI Codex Mini vs GPT-6.1 SolLanded Sep 2026
  • MiMo-V2.6-Flash vs Claude Sonnet 5.5Landed Sep 2026
  • OpenAI Codex Mini vs Solar Mini 4Landed Sep 2026
  • MiMo-V2.6-Flash 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-Flash vs MiMo-V2.6-ProSame lab
  • MiMo-V2.6-Flash vs MiMo-V2.5Same lab
  • MiMo-V2.6-Flash vs Gemma 3 27BNew provider
  • MiMo-V2.6-Flash vs Gemma 3n 2BNew provider
  • MiMo-V2.6-Flash vs Gemma 3n 4BNew provider
  • MiMo-V2.6-Flash vs Gemma 4 26B A4BSame size

Model pages

  • OpenAI Codex Mini10 outputs, specs and price
  • MiMo-V2.6-Flash50 outputs, specs and price
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