GPT-5-CodexvsQwen3-Coder
GPT-5-Codex | Qwen3-Coder | |
|---|---|---|
| Specifications | ||
ParametersA rough measure of how big the model is. More parameters usually means more capable and more expensive to run, though it is a poor guide on its own — a smaller, newer model often beats a larger, older one. | — | 480B |
Context windowHow much text the model can hold in mind at once — your question, any documents you attach, the conversation so far, and its own reply. Go past it and the earliest part falls out of view. | — | 256k |
| API pricingUSD per 1M tokens · lower wins · base tier | ||
Input priceWhat you pay for everything you send the model — your question, plus any documents or earlier conversation you include with it. | — | $1.00 |
Output priceWhat you pay for the text the model writes back. It is normally the dearer half: producing an answer costs more than reading one. | — | $5.00 |
Cheapest inputLowest input rate across third-party providers, excluding the lab itself. The cheapest endpoint may run a quantised build or a shorter context — see "Available from" on the model page. | — | $0.22Google |
Cheapest outputLowest output rate across third-party providers, excluding the lab itself. May come from a different provider than the cheapest input. | — | $1.00DeepInfra |
| Benchmarks | ||
BullshitBench v2Nonsense detection — Given a confidently-worded but nonsensical prompt, does the AI spot that it makes no sense and push back — instead of playing along and inventing an answer? The score is how often it clearly called out the nonsense. Higher is better. | 39% | 20% |
| Overview | ||
| Company | OpenAI | Qwen |
| Release date | Sep 15 2025 | Jul 22 2025 |
| Access | Proprietary | Open Weight |
Other comparisons
GPT-5-CodexvsClaude Fable 5.1Qwen3-CodervsClaude Fable 5.1GPT-5-CodexvsGemini 3.8 FlashQwen3-CodervsGemini 3.8 FlashGPT-5-CodexvsMuse Spark 1.3Qwen3-CodervsMuse Spark 1.3GPT-5-CodexvsGrok 4.6Qwen3-CodervsGrok 4.6GPT-5-CodexvsDeepSeek-V4.1-FlashQwen3-CodervsDeepSeek-V4.1-FlashGPT-5-CodexvsMistral Medium 3.5Qwen3-CodervsMistral Medium 3.5
Frequently asked questions
GPT-5-Codex leads Qwen3-Coder on 1 of the 1 benchmark they both report (BullshitBench v2). Only Qwen3-Coder has a verified first-party API price: $1.00 per million input tokens and $5.00 per million output tokens. No pay-as-you-go API rate is tracked for GPT-5-Codex. Qwen3-Coder shipped 55 days before GPT-5-Codex, so benchmark comparisons should account for the intervening progress.
GPT-5-Codex is proprietary, while Qwen3-Coder is open weight.
On BullshitBench v2, GPT-5-Codex leads at 39% vs Qwen3-Coder at 20%.