Qwen3.5-Flash scores 22.0 on the Respan Index (#87), ahead of GPT-5 nano at 17.3 (#109). Qwen3.5-Flash leads on 6 of the 8 benchmarks both report. GPT-5 nano is 1.3x cheaper per token at list price. Qwen3.5-Flash has the larger context window (1M tokens).
* Estimated: no published scores in that category. How the Respan Index works
| 81.1% |
| 84.4% |
| SAGE (Vals AI) | 30.4% | 42.5% |
| SimpleQA Verified | 11.7% | 20.3% |
| LMArena Elo | 1338 | 1398 |
Higher is better. Each score links to where it was published.