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  1. Home/
  2. Compare/
  3. OpenAI Codex Mini vs Muse Glimmer 30B
Updated Aug 2026

OpenAI Codex Mini vs Muse Glimmer 30B

Muse Glimmer 30B is cheaper than OpenAI Codex Mini at $0.3/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
Muse Glimmer 30B

Which answer wins?

Written rounds

2 prompts
  • 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.

    Muse Glimmer 30B: Here are 5 jokes: I told my wife she was drawing her eyebrows too high. She looked surprised. Why don't scientists trust atoms? Because they make up everything. I used to hate facial hair, but then it grew on me. Parallel lines have so much in common. It's a shame they'll never meet.

    Every model's answer to this prompt
  • 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.

    Muse Glimmer 30B: I started therapy last year because I realized I was spending too much time worrying about things that hadn't happened yet. My therapist was great. First session she says, "Tell me what brings you in." And I’m like, "I’m anxious." She says, "Okay, about what?" And I just start listing. I’m anxious about my retirement.

    Every model's answer to this prompt

Price and specs

OpenAI Codex Mini and Muse Glimmer 30B compared across 10 shared prompts
SpecOpenAI Codex MiniMuse Glimmer 30B
Input price$1.5/M tokens$0.3/M tokens
Output price$6/M tokens$1.2/M tokens
Context window200K tokens131K tokens
ParametersNot disclosed30B
Weights—Open
Free API (OpenRouter)NoNo
ReleasedMay 2025Aug 2026
At 10M a month$15.00$15.00$3.00$3.00
1M10M100M1B10M tokens

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

Where to run it3 hosts, cheapest first
OpenAI Codex Mini

No hosts listed on OpenRouter.

Muse Glimmer 30B3 hosts
HostInOutContextUptime
  • PPhala$0.30 in·$1.10 out·131k·99.9% up
  • DDeepInfrabf16$0.30 in·$1.20 out·131k·98.3% up
  • TTogether$0.35 in·$1.50 out·131k·98.5% up

Per million tokens. Prices and uptime via OpenRouter, checked 7 Oct 2026.

Common questions

What is the difference between OpenAI Codex Mini and Muse Glimmer 30B?

OpenAI Codex Mini is developed by OpenAI while Muse Glimmer 30B is developed by Meta AI. OpenAI Codex Mini has a 200K token context window vs Muse Glimmer 30B's 131K. 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 Muse Glimmer 30B?

It depends on your use case. OpenAI Codex Mini and Muse Glimmer 30B 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 Muse Glimmer 30B?

OpenAI Codex Mini costs $1.5/M input tokens and Muse Glimmer 30B costs $0.3/M input tokens. Muse Glimmer 30B 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.

How can I compare OpenAI Codex Mini and Muse Glimmer 30B on Rival?

This page shows a side-by-side comparison of OpenAI Codex Mini and Muse Glimmer 30B 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

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Same lab, same size, long tail

  • OpenAI Codex Mini vs GPT-6 Luna ProSame lab
  • OpenAI Codex Mini vs GPT-6 Sol ProSame lab
  • Muse Glimmer 30B vs Muse Spark 1.3Same lab
  • Muse Glimmer 30B vs Muse Spark 1.3 ContributorSame lab
  • OpenAI Codex Mini vs Ling 3.0 Flash Sante (free)New provider
  • Muse Glimmer 30B vs Ling 3.0 Flash VL (free)New provider
  • Muse Glimmer 30B vs Ling 3.1 FlashNew provider
  • OpenAI Codex Mini vs Llama 3 70BCross-provider

Model pages

  • OpenAI Codex Mini10 outputs, specs and price
  • Muse Glimmer 30B58 outputs, specs and price
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Explore all of Rival

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  • SubjectiveBench
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