Model comparison
Claude 2.1 vs Longcat Flash Chat
Longcat Flash Chat is the stronger model overall, scoring 42.1 to 25.2 on the Noometry Index.
Last verified . 0 shared benchmarks.
Summary
- The widest gap is in math, where Longcat Flash Chat leads 39.4 to 10.2.
- Longcat Flash Chat has downloadable open weights; the other is API-only.
Side by side
| Claude 2.1 | Longcat Flash Chat | |
|---|---|---|
| Provider | Anthropic | Meituan |
| Noometry Index | 25.2 | 42.1 |
| Released | 2023-11-21 | — |
| Weights | Proprietary | Open |
| Context window | — | — |
| Max output | — | — |
| Input $ / M tokens | — | — |
| Output $ / M tokens | — | — |
| Results tracked | 7 | 19 |
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Category by category
Coding Longcat Flash Chat leads
Claude 2.1: 26.2 (#327), Longcat Flash Chat: 43.5 (#87)
| Benchmark | Claude 2.1 | Longcat Flash Chat |
|---|---|---|
| WeirdML | 7.1% | — |
| LMArena Coding | — | 1471 |
Reasoning Claude 2.1 leads
Claude 2.1: 21.4 (#221), Longcat Flash Chat: 19.0 (#272)
| Benchmark | Claude 2.1 | Longcat Flash Chat |
|---|---|---|
| Kagi LLM Benchmark | — | 43.9% |
| NYT Connections (extended) | — | 17.7% |
| LMArena Hard Prompts | — | 1440 |
| DTBench | 51% | — |
| Epoch Capabilities Index | 119.27 | — |
| ForecastBench | 54.2 | — |
Math Longcat Flash Chat leads
Claude 2.1: 10.2 (#315), Longcat Flash Chat: 39.4 (#107)
| Benchmark | Claude 2.1 | Longcat Flash Chat |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 1.9% | — |
| LMArena Math | — | 1442 |
Knowledge Longcat Flash Chat leads
Claude 2.1: 15.4 (#292), Longcat Flash Chat: 40.6 (#116)
| Benchmark | Claude 2.1 | Longcat Flash Chat |
|---|---|---|
| GPQA Diamond | 33% | — |
| LMArena Expert | — | 1454 |
| MMLU | 73.5% | — |
Multilingual Not comparable
Claude 2.1: —, Longcat Flash Chat: 51.9 (#101)
| Benchmark | Claude 2.1 | Longcat Flash Chat |
|---|---|---|
| LMArena Non-English | — | 1404 |
| LMArena Chinese | — | 1465 |
| LMArena French | — | 1456 |
| LMArena German | — | 1408 |
| LMArena Japanese | — | 1373 |
| LMArena Korean | — | 1371 |
| LMArena Russian | — | 1395 |
| LMArena Spanish | — | 1445 |
Instruction Following Not comparable
Claude 2.1: —, Longcat Flash Chat: 74.4 (#96)
| Benchmark | Claude 2.1 | Longcat Flash Chat |
|---|---|---|
| LMArena Instruction Following | — | 1411 |
Long Context Not comparable
Claude 2.1: —, Longcat Flash Chat: 43.5 (#93)
| Benchmark | Claude 2.1 | Longcat Flash Chat |
|---|---|---|
| LMArena Longer Query | — | 1425 |
Writing & Preference Not comparable
Claude 2.1: —, Longcat Flash Chat: 61.0 (#91)
| Benchmark | Claude 2.1 | Longcat Flash Chat |
|---|---|---|
| LMArena Text | — | 1427 |
| LMArena Creative Writing | — | 1388 |
| LMArena Multi-Turn | — | 1418 |
Frequently asked questions
Is Claude 2.1 better than Longcat Flash Chat?
Longcat Flash Chat is the stronger model overall, scoring 42.1 to 25.2 on the Noometry Index.
Is Claude 2.1 or Longcat Flash Chat better for coding?
Longcat Flash Chat scores higher on coding benchmarks: 43.5 versus 26.2 in the Noometry coding category.
How many benchmarks do Claude 2.1 and Longcat Flash Chat share?
0 benchmarks have published results for both models. Claude 2.1 has 7 scored results on Noometry and Longcat Flash Chat has 19.