OpenAI Codex Mini vs 
Qwen3.8 Flash
Qwen3.8 Flash is cheaper than OpenAI Codex Mini at $0.15/M vs $1.5/M input tokens.
Pokémon Battle UI Recreation
Pokémon battle screen you can actually click. One HTML file.
Loading the build
Loading the build
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.
Qwen3.8 Flash: Why did the scarecrow win an award? Because he was outstanding in his field. What do you call fake spaghetti? An impasta. Why don’t skeletons fight each other? They don’t have the guts. I told my wife she was drawing her eyebrows too high. She looked surprised. What did the ocean say to the beach?
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.
Qwen3.8 Flash: A 3-Minute Stand-Up Routine Thank you. I’ve reached the age where “getting lucky” means finding my phone charger on the first try. I’m too old to be surprised by technology. When I was younger, if my laptop made a weird noise, I thought, “Oh no, it’s dying.”
Price and specs
Not enough votes to call it. On the specs, Qwen3.8 Flash has the edge: bigger model tier, newer, bigger context window. Qwen3.8 Flash costs 13x less per token.
| Spec | OpenAI Codex Mini | Qwen3.8 Flash |
|---|---|---|
| Input price | $1.5/M tokens | $0.15/M tokens |
| Output price | $6/M tokens | $0.47/M tokens |
| Context window | 200K tokens | 1.0M tokens |
| Weights | — | Closed |
| Free API (OpenRouter) | No | No |
| Released | May 2025 | Aug 2026 |
| At 10M a month | $15.00 | $1.50 |
Input tokens at list price. No caching, no batch discount.
Where to run it
OpenAI Codex Mini
No hosts listed on OpenRouter.
Qwen3.8 Flash1 host
Per million tokens. Prices and uptime via OpenRouter, checked 10 Oct 2026.
Common questions
What is the difference between OpenAI Codex Mini and Qwen3.8 Flash?
OpenAI Codex Mini is developed by OpenAI while Qwen3.8 Flash is developed by Qwen. OpenAI Codex Mini has a 200K token context window vs Qwen3.8 Flash's 1.0M. You can compare their actual outputs across 9 challenges on Rival to see how they differ in practice.
Which is better, OpenAI Codex Mini or Qwen3.8 Flash?
It depends on your use case. OpenAI Codex Mini and Qwen3.8 Flash each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 9 challenges so you can judge which fits your needs best.
How much does OpenAI Codex Mini cost compared to Qwen3.8 Flash?
OpenAI Codex Mini costs $1.5/M input tokens and Qwen3.8 Flash costs $0.15/M input tokens. Qwen3.8 Flash is $1.35/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 Qwen3.8 Flash on Rival?
This page shows a side-by-side comparison of OpenAI Codex Mini and Qwen3.8 Flash 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 Step 5 PreviewLanded Oct 2026
- Qwen3.8 Flash vs Claude Haiku 5.5Landed Oct 2026
- OpenAI Codex Mini vs Ling 3.1 FlashLanded Oct 2026
- Qwen3.8 Flash vs Mistral Large 4Landed Oct 2026
- OpenAI Codex Mini vs GPT-6.1 SolLanded Sep 2026
- Qwen3.8 Flash vs Claude Sonnet 5.5Landed Sep 2026
- OpenAI Codex Mini vs Solar Mini 4Landed Sep 2026
- Qwen3.8 Flash 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
- Qwen3.8 Flash vs Qwen3.8 Omni FlashSame lab
- Qwen3.8 Flash vs Qwen3.7 FlashSame lab
- Qwen3.8 Flash vs OpenAI o3Cross-provider
- Qwen3.8 Flash vs o3 MiniCross-provider
- Qwen3.8 Flash vs OpenAI o4-miniCross-provider
- Qwen3.8 Flash vs OpenAI o4 Mini HighCross-provider