Model comparison
Longcat Flash Chat vs Nemotron 3 Ultra
Longcat Flash Chat and Nemotron 3 Ultra score almost the same on the Noometry Index (42.1 vs 42.5), so choose on price, context window or the category you care about most.
Last verified . 16 shared benchmarks.
NVIDIASummary
- They share 16 benchmarks with published results for both. Longcat Flash Chat scores higher in 2 categories and Nemotron 3 Ultra in 6 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Nemotron 3 Ultra leads 31.0 to 19.0.
Side by side
| Longcat Flash Chat | Nemotron 3 Ultra | |
|---|---|---|
| Provider | Meituan | NVIDIA |
| Noometry Index | 42.1 | 42.5 |
| Released | — | 2026-06-04 |
| Weights | Open | Open |
| Context window | — | 262K |
| Max output | — | 128K |
| Input $ / M tokens | — | $0.50 |
| Output $ / M tokens | — | $2.20 |
| Results tracked | 19 | 30 |
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Category by category
Coding Longcat Flash Chat leads
Longcat Flash Chat: 43.5 (#87), Nemotron 3 Ultra: 38.1 (#182)
| Benchmark | Longcat Flash Chat | Nemotron 3 Ultra |
|---|---|---|
| LMArena Coding | 1471 | 1468 |
| FrontierCode | — | 13.6% |
| SciCode | — | 40.3% |
| WeirdML | — | 43.5% |
Agentic & Tool Use Not comparable
Longcat Flash Chat: —, Nemotron 3 Ultra: 23.4 (#126)
| Benchmark | Longcat Flash Chat | Nemotron 3 Ultra |
|---|---|---|
| APEX-Agents | — | 22.7% |
Reasoning Nemotron 3 Ultra leads
Longcat Flash Chat: 19.0 (#272), Nemotron 3 Ultra: 31.0 (#82)
| Benchmark | Longcat Flash Chat | Nemotron 3 Ultra |
|---|---|---|
| LMArena Hard Prompts | 1440 | 1452 |
| Kagi LLM Benchmark | 43.9% | — |
| NYT Connections (extended) | 17.7% | — |
| CritPt | — | 3.1% |
| Chess Puzzles | — | 12% |
| Mystery Game Puzzles | — | 20% |
| DTBench | — | 90.1% |
| LMCA | — | 36.9% |
| Epoch Capabilities Index | — | 146.17 |
Math Longcat Flash Chat leads
Longcat Flash Chat: 39.4 (#107), Nemotron 3 Ultra: 35.3 (#187)
| Benchmark | Longcat Flash Chat | Nemotron 3 Ultra |
|---|---|---|
| LMArena Math | 1442 | 1457 |
| OTIS Mock AIME 2024-2025 | — | 86.7% |
| ProofBench | — | 2% |
Knowledge Nemotron 3 Ultra leads
Longcat Flash Chat: 40.6 (#116), Nemotron 3 Ultra: 52.5 (#61)
| Benchmark | Longcat Flash Chat | Nemotron 3 Ultra |
|---|---|---|
| LMArena Expert | 1454 | 1472 |
| GPQA Diamond | — | 85.4% |
Multilingual Nemotron 3 Ultra leads
Longcat Flash Chat: 51.9 (#101), Nemotron 3 Ultra: 53.5 (#64)
| Benchmark | Longcat Flash Chat | Nemotron 3 Ultra |
|---|---|---|
| LMArena Non-English | 1404 | 1427 |
| LMArena Chinese | 1465 | 1497 |
| LMArena French | 1456 | 1472 |
| LMArena German | 1408 | 1471 |
| LMArena Korean | 1371 | 1386 |
| LMArena Russian | 1395 | 1417 |
| LMArena Spanish | 1445 | 1454 |
| LMArena Japanese | 1373 | — |
Instruction Following Too close to call
Longcat Flash Chat: 74.4 (#96), Nemotron 3 Ultra: 74.7 (#88)
| Benchmark | Longcat Flash Chat | Nemotron 3 Ultra |
|---|---|---|
| LMArena Instruction Following | 1411 | 1418 |
Long Context Too close to call
Longcat Flash Chat: 43.5 (#93), Nemotron 3 Ultra: 43.9 (#81)
| Benchmark | Longcat Flash Chat | Nemotron 3 Ultra |
|---|---|---|
| LMArena Longer Query | 1425 | 1437 |
Writing & Preference Nemotron 3 Ultra leads
Longcat Flash Chat: 61.0 (#91), Nemotron 3 Ultra: 66.3 (#36)
| Benchmark | Longcat Flash Chat | Nemotron 3 Ultra |
|---|---|---|
| LMArena Text | 1427 | 1445 |
| LMArena Creative Writing | 1388 | 1398 |
| LMArena Multi-Turn | 1418 | 1411 |
| EQ-Bench Creative Writing | — | 1692 |
Frequently asked questions
Is Longcat Flash Chat better than Nemotron 3 Ultra?
Longcat Flash Chat and Nemotron 3 Ultra score almost the same on the Noometry Index (42.1 vs 42.5), so choose on price, context window or the category you care about most.
Is Longcat Flash Chat or Nemotron 3 Ultra better for coding?
Longcat Flash Chat scores higher on coding benchmarks: 43.5 versus 38.1 in the Noometry coding category.
How many benchmarks do Longcat Flash Chat and Nemotron 3 Ultra share?
16 benchmarks have published results for both models. Longcat Flash Chat has 19 scored results on Noometry and Nemotron 3 Ultra has 30.