OpenAI Codex Mini vs 
Qwen3.5 397B A17B
Qwen3.5 397B A17B is cheaper than OpenAI Codex Mini at $0.6/M vs $1.5/M input tokens.
Pokémon Battle UI Recreation
Pokémon battle screen you can actually click. One HTML file.
Loading the build
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Which answer wins?
Written rounds
2 promptsFive 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.
Qwen3.5 397B A17B: Here are 5 jokes: Why did the bicycle fall over? Because it was two-tired. What do you call a fish wearing a bowtie? Sofishticated. Why can't you give Elsa a balloon? Because she will let it go. What do you call a lazy kangaroo? A pouch potato. Why did the math book look sad? Because it had too many problems.
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.
Qwen3.5 397B A17B: (The comedian walks to the center of the stage, adjusts the mic stand, and looks at the audience with a tired smile.) Has anyone else noticed that calling a customer service line is the only situation in life where you voluntarily enter a hostage negotiation? I tried to call my internet provider yesterday.
Price and specs
Not enough votes to call it. On the specs, Qwen3.5 397B A17B has the edge: bigger model tier, newer.
| Spec | OpenAI Codex Mini | Qwen3.5 397B A17B |
|---|---|---|
| Input price | $1.5/M tokens | $0.6/M tokens |
| Output price | $6/M tokens | $3.6/M tokens |
| Context window | 200K tokens | 262K tokens |
| Parameters | Not disclosed | 397B (17B active) |
| Weights | — | Open |
| Free API (OpenRouter) | No | No |
| Released | May 2025 | Feb 2026 |
| SWE-bench Verified | 71.3% | 76.4% |
| At 10M a month | $15.00 | $6.00 |
Input tokens at list price. No caching, no batch discount.
Where to run it
OpenAI Codex Mini
No hosts listed on OpenRouter.
Qwen3.5 397B A17B10 hosts
Per million tokens. Prices and uptime via OpenRouter, checked 10 Oct 2026.
Common questions
What is the difference between OpenAI Codex Mini and Qwen3.5 397B A17B?
OpenAI Codex Mini is developed by OpenAI while Qwen3.5 397B A17B is developed by Qwen. OpenAI Codex Mini has a 200K token context window vs Qwen3.5 397B A17B's 262K. 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 Qwen3.5 397B A17B?
It depends on your use case. OpenAI Codex Mini and Qwen3.5 397B A17B 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 Qwen3.5 397B A17B?
OpenAI Codex Mini costs $1.5/M input tokens and Qwen3.5 397B A17B costs $0.6/M input tokens. Qwen3.5 397B A17B is $0.90/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 Qwen3.5 397B A17B on Rival?
This page shows a side-by-side comparison of OpenAI Codex Mini and Qwen3.5 397B A17B 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.
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