DeepSeek V4.1 Flash scores 50.9 on the Respan Index (#20), ahead of Qwen3.7-Max at 40.5 (#45). DeepSeek V4.1 Flash leads on 8 of the 11 benchmarks both report. DeepSeek V4.1 Flash is 7.1x cheaper per token at list price.
* Estimated: no published scores in that category. How the Respan Index works
| LiveBench Language (LiveBench) |
| 81.2% |
| 79.7% |
| LiveBench Mathematics (LiveBench) | 93.3% | 85.2% |
| LiveBench Reasoning (LiveBench) | 86.7% | 83.3% |
| LMArena Agent (LMArena) | 0.0402 | -0.0513 |
| LMArena WebDev (LMArena) | 1620 | 1515 |
| SimpleBench (SimpleBench) | 66.7% | 70.4% |
| GPQA Diamond | 90.9% | 90.9% |
Higher is better. Each score links to where it was published.