o1-previewvsQwen3-Coder
o1-preview | Qwen3-Coder | |
|---|---|---|
| Specifications | ||
Parameters | — | 480B |
Context window | 128k | 256k |
| Benchmarks | ||
Science GPQA DiamondGraduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | 73.3% | — |
| Overview | ||
| Company | OpenAI | Qwen |
| Release date | Sep 12 2024 | Jul 22 2025 |
| Access | Proprietary | Open Weight |
Which is better: o1-preview or Qwen3-Coder?
o1-preview and Qwen3-Coder don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. o1-preview shipped 313 days before Qwen3-Coder, so benchmark comparisons should account for the intervening progress.
Context windows are 128k (o1-preview) vs 256k (Qwen3-Coder). o1-preview is proprietary, while Qwen3-Coder is open weight.
Direct benchmark comparisons are unavailable — o1-preview and Qwen3-Coder don't publish scores on any of the same benchmarks.
Frequently asked questions
o1-preview was released by OpenAI on Sep 12 2024.
Qwen3-Coder was released by Qwen on Jul 22 2025.
o1-preview has a 128k context window; Qwen3-Coder has 256k.
o1-preview is a proprietary model released by OpenAI. Qwen3-Coder is an open weight model released by Qwen.