o3vsQwen3-Coder
o3 | Qwen3-Coder | |
|---|---|---|
| Specifications | ||
Parameters | — | 480B |
Context window | — | 256k |
| Benchmarks | ||
Nonsense detection BullshitBench v2Given 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. | 26%Best | 20% |
| Overview | ||
| Company | OpenAI | Qwen |
| Release date | Apr 16 2025 | Jul 22 2025 |
| Access | Proprietary | Open Weight |
Which is better: o3 or Qwen3-Coder?
o3 leads Qwen3-Coder on 1 of the 1 benchmark they both report (BullshitBench v2). o3 shipped 97 days before Qwen3-Coder, so benchmark comparisons should account for the intervening progress.
o3 is proprietary, while Qwen3-Coder is open weight.
On BullshitBench v2, o3 leads at 26% vs Qwen3-Coder at 20%.
Frequently asked questions
o3 was released by OpenAI on Apr 16 2025.
Qwen3-Coder was released by Qwen on Jul 22 2025.
o3 is a proprietary model released by OpenAI. Qwen3-Coder is an open weight model released by Qwen.