OpenAI Codex Mini vs 
Qwen3.5 35B A3B
Qwen3.5 35B A3B is cheaper than OpenAI Codex Mini at $0.25/M vs $1.5/M input tokens.
Pokémon Battle UI Recreation
Pokémon battle screen you can actually click. One HTML file.
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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 35B A3B: Here are 5 jokes: Why did the scarecrow win an award? Because he was outstanding in his field! What do you call a fake noodle? An impasta! Why don't eggs tell jokes? They'd crack each other up! What do you call a bear with no teeth? A gummy bear! Why did the bicycle fall over? Because it was two-tired!
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 35B A3B: (Walks to the mic, adjusts the stand, looks around the room) So, I went to the grocery store yesterday. You know the drill. You walk in, you see the self-checkout lanes. And you think, "Oh, this is going to be efficient. I'm going to scan my own stuff. I'm going to be my own cashier. I'm going to be the boss."
Price and specs
| Spec | OpenAI Codex Mini | Qwen3.5 35B A3B |
|---|---|---|
| Input price | $1.5/M tokens | $0.25/M tokens |
| Output price | $6/M tokens | $2/M tokens |
| Context window | 200K tokens | 262K tokens |
| Parameters | Not disclosed | 35B (3B active) |
| Weights | — | Open |
| Free API (OpenRouter) | No | No |
| Released | May 2025 | Feb 2026 |
| SWE-bench Verified | 71.3% | 69.2% |
| At 10M a month | $15.00 | $2.50 |
Input tokens at list price. No caching, no batch discount.
Where to run it
OpenAI Codex Mini
No hosts listed on OpenRouter.
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 35B A3B?
OpenAI Codex Mini is developed by OpenAI while Qwen3.5 35B A3B is developed by Qwen. OpenAI Codex Mini has a 200K token context window vs Qwen3.5 35B A3B'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 35B A3B?
It depends on your use case. OpenAI Codex Mini and Qwen3.5 35B A3B 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 35B A3B?
OpenAI Codex Mini costs $1.5/M input tokens and Qwen3.5 35B A3B costs $0.25/M input tokens. Qwen3.5 35B A3B is $1.25/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 35B A3B on Rival?
This page shows a side-by-side comparison of OpenAI Codex Mini and Qwen3.5 35B A3B 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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