Model comparison
Amazon Nova Experimental Chat 12 10 vs Longcat Flash Chat
Amazon Nova Experimental Chat 12 10 and Longcat Flash Chat score almost the same on the Noometry Index (42.9 vs 42.1), so choose on price, context window or the category you care about most.
Last verified . 12 shared benchmarks.
Summary
- They share 12 benchmarks with published results for both. Amazon Nova Experimental Chat 12 10 scores higher in 1 category and Longcat Flash Chat in 7 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Amazon Nova Experimental Chat 12 10 leads 29.3 to 19.0.
- Longcat Flash Chat has downloadable open weights; the other is API-only.
Side by side
| Amazon Nova Experimental Chat 12 10 | Longcat Flash Chat | |
|---|---|---|
| Provider | Amazon | Meituan |
| Noometry Index | 42.9 | 42.1 |
| Released | — | — |
| Weights | Proprietary | Open |
| Context window | — | — |
| Max output | — | — |
| Input $ / M tokens | — | — |
| Output $ / M tokens | — | — |
| Results tracked | 12 | 19 |
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Category by category
Coding Longcat Flash Chat leads
Amazon Nova Experimental Chat 12 10: 42.2 (#110), Longcat Flash Chat: 43.5 (#87)
| Benchmark | Amazon Nova Experimental Chat 12 10 | Longcat Flash Chat |
|---|---|---|
| LMArena Coding | 1430 | 1471 |
Reasoning Amazon Nova Experimental Chat 12 10 leads
Amazon Nova Experimental Chat 12 10: 29.3 (#94), Longcat Flash Chat: 19.0 (#272)
| Benchmark | Amazon Nova Experimental Chat 12 10 | Longcat Flash Chat |
|---|---|---|
| LMArena Hard Prompts | 1427 | 1440 |
| Kagi LLM Benchmark | — | 43.9% |
| NYT Connections (extended) | — | 17.7% |
Math Too close to call
Amazon Nova Experimental Chat 12 10: 38.9 (#124), Longcat Flash Chat: 39.4 (#107)
| Benchmark | Amazon Nova Experimental Chat 12 10 | Longcat Flash Chat |
|---|---|---|
| LMArena Math | 1419 | 1442 |
Knowledge Longcat Flash Chat leads
Amazon Nova Experimental Chat 12 10: 39.2 (#136), Longcat Flash Chat: 40.6 (#116)
| Benchmark | Amazon Nova Experimental Chat 12 10 | Longcat Flash Chat |
|---|---|---|
| LMArena Expert | 1408 | 1454 |
Multilingual Too close to call
Amazon Nova Experimental Chat 12 10: 51.4 (#108), Longcat Flash Chat: 51.9 (#101)
| Benchmark | Amazon Nova Experimental Chat 12 10 | Longcat Flash Chat |
|---|---|---|
| LMArena Non-English | 1398 | 1404 |
| LMArena Chinese | 1440 | 1465 |
| LMArena Russian | 1395 | 1395 |
| LMArena French | — | 1456 |
| LMArena German | — | 1408 |
| LMArena Japanese | — | 1373 |
| LMArena Korean | — | 1371 |
| LMArena Spanish | — | 1445 |
Instruction Following Longcat Flash Chat leads
Amazon Nova Experimental Chat 12 10: 73.2 (#123), Longcat Flash Chat: 74.4 (#96)
| Benchmark | Amazon Nova Experimental Chat 12 10 | Longcat Flash Chat |
|---|---|---|
| LMArena Instruction Following | 1387 | 1411 |
Long Context Longcat Flash Chat leads
Amazon Nova Experimental Chat 12 10: 42.4 (#125), Longcat Flash Chat: 43.5 (#93)
| Benchmark | Amazon Nova Experimental Chat 12 10 | Longcat Flash Chat |
|---|---|---|
| LMArena Longer Query | 1391 | 1425 |
Writing & Preference Longcat Flash Chat leads
Amazon Nova Experimental Chat 12 10: 59.5 (#110), Longcat Flash Chat: 61.0 (#91)
| Benchmark | Amazon Nova Experimental Chat 12 10 | Longcat Flash Chat |
|---|---|---|
| LMArena Text | 1420 | 1427 |
| LMArena Creative Writing | 1350 | 1388 |
| LMArena Multi-Turn | 1409 | 1418 |
Frequently asked questions
Is Amazon Nova Experimental Chat 12 10 better than Longcat Flash Chat?
Amazon Nova Experimental Chat 12 10 and Longcat Flash Chat score almost the same on the Noometry Index (42.9 vs 42.1), so choose on price, context window or the category you care about most.
Is Amazon Nova Experimental Chat 12 10 or Longcat Flash Chat better for coding?
Longcat Flash Chat scores higher on coding benchmarks: 43.5 versus 42.2 in the Noometry coding category.
How many benchmarks do Amazon Nova Experimental Chat 12 10 and Longcat Flash Chat share?
12 benchmarks have published results for both models. Amazon Nova Experimental Chat 12 10 has 12 scored results on Noometry and Longcat Flash Chat has 19.