Gemini 3.8 Flash scores 52.2 on the Respan Index (#16), ahead of Kimi K2.6 at 34.4 (#55). Gemini 3.8 Flash leads on 16 of the 21 benchmarks both report. Gemini 3.8 Flash is 1.1x 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
| GPQA Diamond |
| 95.3% |
| 90.8% |
| LiveBench Agentic Coding (LiveBench) | 54.2% | 46.9% |
| LiveBench Coding (LiveBench) | 72.5% | 78.6% |
| LiveBench Data Analysis (LiveBench) | 54% | 65.1% |
| LiveBench Instruction Following (LiveBench) | 81.4% | 64.4% |
| LiveBench Language (LiveBench) | 87.8% | 75.1% |
| LiveBench Mathematics (LiveBench) | 91.6% | 84.3% |
| LiveBench Reasoning (LiveBench) | 89.3% | 79.4% |
| Mystery Game Puzzles (Epoch AI) | 47% | 18% |
| OTIS Mock AIME 2024-2025 (Epoch AI) | 98.9% | 96.1% |
| SAGE (Vals AI) | 35.1% | 50.2% |
| SimpleQA Verified | 69.7% | 34.9% |
| Vending-Bench 2 (Andon Labs) | 5093.79 | 6204.57 |
| WeirdML (Håvard Tveit Ihle) | 84.8% | 55.9% |
| LMArena Elo | 1495 | 1455 |
| LMArena Vision (LMArena) | 1290 | 1265 |
| LMArena WebDev (LMArena) | 1583 | 1509 |
Higher is better. Each score links to where it was published.