DeepSeek V4.1 Flash scores 50.9 on the Respan Index (#20), ahead of Qwen3.8-Max at 50.3 (#22). Qwen3.8-Max leads on 8 of the 15 benchmarks both report. DeepSeek V4.1 Flash is 5.7x cheaper per token at list price.
* Estimated: no published scores in that category. How the Respan Index works
| LiveBench Instruction Following (LiveBench) |
| 70% |
| 74.1% |
| LiveBench Language (LiveBench) | 81.2% | 79.7% |
| LiveBench Mathematics (LiveBench) | 93.3% | 91.3% |
| LiveBench Reasoning (LiveBench) | 86.7% | 88.2% |
| SAGE (Vals AI) | 47.9% | 51.3% |
| Terminal-Bench 4.0 (Vals AI) | 19.7% | 34.3% |
| LMArena Agent (LMArena) | 0.0402 | 0.0251 |
| LMArena Elo | 1474 | 1481 |
| LMArena WebDev (LMArena) | 1620 | 1671 |
| GPQA Diamond | 90.9% | 92.6% |
| Terminal-Bench 2.1 | 90.6% | 86.6% |
Higher is better. Each score links to where it was published.