Gemini 3.8 Flash scores 52.2 on the Respan Index (#16), ahead of DeepSeek V4.1 Flash at 50.9 (#20). DeepSeek V4.1 Flash leads on 9 of the 16 benchmarks both report. DeepSeek V4.1 Flash is 2.9x cheaper per token at list price. Gemini 3.8 Flash has the larger context window (1.0M tokens).
* Estimated: no published scores in that category. How the Respan Index works
| LiveBench Instruction Following (LiveBench) | 70% | 81.4% |
| LiveBench Language (LiveBench) | 81.2% | 87.8% |
| LiveBench Mathematics (LiveBench) | 93.3% | 91.6% |
| LiveBench Reasoning (LiveBench) | 86.7% | 89.3% |
| SAGE (Vals AI) | 47.9% | 35.1% |
| Terminal-Bench 4.0 (Vals AI) | 19.7% | 19.2% |
| LMArena Agent (LMArena) | 0.0402 | 0.0297 |
| LMArena Elo | 1474 | 1495 |
| LMArena WebDev (LMArena) | 1620 | 1583 |
| SimpleBench (SimpleBench) | 66.7% | 82.4% |
| DeepSWE v1.1 | 74.2% | 73.7% |
| GPQA Diamond | 90.9% | 95.3% |
Higher is better. Each score links to where it was published.