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  1. Home/
  2. Compare/
  3. OpenAI Codex Mini vs Ox Alpha
Updated Aug 2026

OpenAI Codex Mini vs Ox Alpha

Ox Alpha is cheaper than OpenAI Codex Mini at $0/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
Ox Alpha

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.

    Ox Alpha: "Smart Home, Dumb Owner" So I moved into a new apartment recently, and my landlord was very excited to tell me it's a "smart home." Which is funny, because I've never felt dumber than I do living in it. The thermostat has an app. The lights have an app. The doorbell has an app.

    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.

    Ox Alpha: Here are 5 jokes: Why don't scientists trust atoms? Because they make up everything! What do you call a fake noodle? An impasta! Why did the scarecrow win an award? Because he was outstanding in his field! How does a penguin build its house? Igloos it together! Why don't eggs tell jokes? They'd crack each other up!

    Every model's answer to this prompt

Price and specs

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

OpenAI Codex Mini and Ox Alpha compared across 10 shared prompts
SpecOpenAI Codex MiniOx Alpha
Input price$1.5/M tokensFree
Output price$6/M tokensFree
Context window200K tokens1.0M tokens
Free API (OpenRouter)NoNo
ReleasedMay 2025Aug 2026
At 10M a month$15.00$15.00$0$0
1M10M100M1B10M tokens

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

Common questions

What is the difference between OpenAI Codex Mini and Ox Alpha?

OpenAI Codex Mini is developed by OpenAI while Ox Alpha is developed by OpenRouter. OpenAI Codex Mini has a 200K token context window vs Ox Alpha's 1.0M. 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 Ox Alpha?

It depends on your use case. OpenAI Codex Mini and Ox Alpha 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 Ox Alpha?

OpenAI Codex Mini costs $1.5/M input tokens and Ox Alpha costs $0/M input tokens. Ox Alpha is $1.50/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 Ox Alpha on Rival?

This page shows a side-by-side comparison of OpenAI Codex Mini and Ox Alpha 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 Ling 3.1 FlashLanded Oct 2026
  • Ox Alpha vs Mistral Large 4Landed Oct 2026
  • OpenAI Codex Mini vs GPT-6.1 SolLanded Sep 2026
  • Ox Alpha vs Claude Sonnet 5.5Landed Sep 2026
  • OpenAI Codex Mini vs Solar Mini 4Landed Sep 2026
  • Ox Alpha vs Qwen3.8 Max PrimeLanded Sep 2026
  • OpenAI Codex Mini vs GLM 5.3 PrimeLanded Sep 2026
  • Ox Alpha vs Qwen3.8 Omni FlashLanded 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
  • Ox Alpha vs OpenRouter Fusion · Budget (Jun 2026)Same lab
  • Ox Alpha vs OpenRouter Fusion · Quality (Jun 2026)Same lab
  • OpenAI Codex Mini vs Grok 4.20 Multi-Agent BetaNew provider
  • OpenAI Codex Mini vs Grok 4.3New provider
  • OpenAI Codex Mini vs Grok 4.5New provider
  • OpenAI Codex Mini vs Grok 4.6New provider

Model pages

  • OpenAI Codex Mini10 outputs, specs and price
  • Ox Alpha58 outputs, specs and price
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