LongCat Flash Chat scores 15.5 on the Respan Index (#120), ahead of NVIDIA Nemotron 3 Nano 30B-A3B BF16 at 14.9 (#121). They split the 4 benchmarks both report evenly. NVIDIA Nemotron 3 Nano 30B-A3B BF16 has the larger context window (1M tokens).
| Benchmark | LongCat Flash Chat | NVIDIA Nemotron 3 Nano 30B-A3B BF16 |
|---|---|---|
| LMArena Elo | 1423 | 1348 |
| AIME 2025 | 61.3% | 89.1% |
| LiveCodeBench | 48.0% | 68.3% |
| MMLU-Pro | 82.7% | 78.3% |
Higher is better. Each score links to where it was published.
* Estimated: no published scores in that category. How the Respan Index works