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  1. Home/
  2. Compare/
  3. OpenAI Codex Mini vs Dots3-Note Preview
Updated Aug 2026

OpenAI Codex Mini vs Dots3-Note Preview

Dots3-Note Preview 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
Dots3-Note Preview

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.

    Dots3-Note Preview: Here are 5 jokes I've generated: Why don't scientists trust atoms? Because they make up everything. What do you call a fish with no eyes? Fsh. I'm reading a book on anti-gravity. It's impossible to put down. Why did the giraffe get a ticket? For parking in a no-parking zone.

    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.

    Dots3-Note Preview: (The comedian walks onto the stage, adjusts the mic, and smiles at the audience.) Thank you, thank you. You guys are great. I love coming to [City Name]. I was just at the airport trying to get here, and I have to tell you, the modern airport experience is just… a lot.

    Every model's answer to this prompt

Price and specs

Not enough votes to call it. On the specs, Dots3-Note Preview has the edge: bigger model tier, newer, bigger context window.

OpenAI Codex Mini and Dots3-Note Preview compared across 10 shared prompts
SpecOpenAI Codex MiniDots3-Note Preview
Input price$1.5/M tokensFree
Output price$6/M tokensFree
Context window200K tokens512K tokens
Free API (OpenRouter)NoYes (1 provider)
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.

Where to run it1 host
OpenAI Codex Mini

No hosts listed on OpenRouter.

Dots3-Note Preview1 host
HostInOutContextUptime
  • AAtlasCloudfp8$0 in·$0 out·512k·97.4% up

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

Common questions

What is the difference between OpenAI Codex Mini and Dots3-Note Preview?

OpenAI Codex Mini is developed by OpenAI while Dots3-Note Preview is developed by Dots Studio. OpenAI Codex Mini has a 200K token context window vs Dots3-Note Preview's 512K. 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 Dots3-Note Preview?

It depends on your use case. OpenAI Codex Mini and Dots3-Note Preview 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 Dots3-Note Preview?

OpenAI Codex Mini costs $1.5/M input tokens and Dots3-Note Preview costs $0/M input tokens. Dots3-Note Preview 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 Dots3-Note Preview on Rival?

This page shows a side-by-side comparison of OpenAI Codex Mini and Dots3-Note Preview 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

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  • OpenAI Codex Mini vs GPT-6.1 SolLanded Sep 2026
  • Dots3-Note Preview vs Claude Sonnet 5.5Landed Sep 2026
  • OpenAI Codex Mini vs Solar Mini 4Landed Sep 2026
  • Dots3-Note Preview 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
  • Dots3-Note Preview vs Ox AlphaSame size
  • Dots3-Note Preview vs GPT-6.1 SolSame size
  • OpenAI Codex Mini vs Muse Glimmer 30BSame size
  • OpenAI Codex Mini vs Muse Spark 1.1New provider
  • OpenAI Codex Mini vs Muse Spark 1.3New provider
  • OpenAI Codex Mini vs Muse Spark 1.3 ContributorNew provider

Model pages

  • OpenAI Codex Mini10 outputs, specs and price
  • Dots3-Note Preview58 outputs, specs and price
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