Model comparison
Hy3 vs Longcat Flash Chat
Hy3 is the stronger model overall, scoring 44.2 to 42.1 on the Noometry Index.
Last verified . 18 shared benchmarks.
TencentSummary
- They share 18 benchmarks with published results for both. Hy3 scores higher in 8 categories and Longcat Flash Chat in 0 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Hy3 leads 26.1 to 19.0.
- The biggest single-benchmark swing is NYT Connections (extended): 41.2% for Hy3 and 17.7% for Longcat Flash Chat.
Side by side
| Hy3 | Longcat Flash Chat | |
|---|---|---|
| Provider | Tencent | Meituan |
| Noometry Index | 44.2 | 42.1 |
| Released | 2026-07-06 | — |
| Weights | Open | Open |
| Context window | 262K | — |
| Max output | 128K | — |
| Input $ / M tokens | $0.0825 | — |
| Output $ / M tokens | $0.33 | — |
| Results tracked | 19 | 19 |
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Category by category
Coding Hy3 leads
Hy3: 46.8 (#63), Longcat Flash Chat: 43.5 (#87)
| Benchmark | Hy3 | Longcat Flash Chat |
|---|---|---|
| LMArena Coding | 1464 | 1471 |
| LMArena WebDev | 1508 | — |
Reasoning Hy3 leads
Hy3: 26.1 (#136), Longcat Flash Chat: 19.0 (#272)
| Benchmark | Hy3 | Longcat Flash Chat |
|---|---|---|
| NYT Connections (extended) | 41.2% | 17.7% |
| LMArena Hard Prompts | 1447 | 1440 |
| Kagi LLM Benchmark | — | 43.9% |
Math Too close to call
Hy3: 40.1 (#93), Longcat Flash Chat: 39.4 (#107)
| Benchmark | Hy3 | Longcat Flash Chat |
|---|---|---|
| LMArena Math | 1475 | 1442 |
Knowledge Too close to call
Hy3: 40.8 (#114), Longcat Flash Chat: 40.6 (#116)
| Benchmark | Hy3 | Longcat Flash Chat |
|---|---|---|
| LMArena Expert | 1460 | 1454 |
Multilingual Hy3 leads
Hy3: 53.5 (#65), Longcat Flash Chat: 51.9 (#101)
| Benchmark | Hy3 | Longcat Flash Chat |
|---|---|---|
| LMArena Non-English | 1426 | 1404 |
| LMArena Chinese | 1493 | 1465 |
| LMArena French | 1461 | 1456 |
| LMArena German | 1439 | 1408 |
| LMArena Japanese | 1392 | 1373 |
| LMArena Korean | 1395 | 1371 |
| LMArena Russian | 1432 | 1395 |
| LMArena Spanish | 1456 | 1445 |
Instruction Following Too close to call
Hy3: 75.1 (#70), Longcat Flash Chat: 74.4 (#96)
| Benchmark | Hy3 | Longcat Flash Chat |
|---|---|---|
| LMArena Instruction Following | 1426 | 1411 |
Long Context Too close to call
Hy3: 44.1 (#75), Longcat Flash Chat: 43.5 (#93)
| Benchmark | Hy3 | Longcat Flash Chat |
|---|---|---|
| LMArena Longer Query | 1442 | 1425 |
Writing & Preference Hy3 leads
Hy3: 62.2 (#81), Longcat Flash Chat: 61.0 (#91)
| Benchmark | Hy3 | Longcat Flash Chat |
|---|---|---|
| LMArena Text | 1439 | 1427 |
| LMArena Creative Writing | 1402 | 1388 |
| LMArena Multi-Turn | 1436 | 1418 |
Frequently asked questions
Is Hy3 better than Longcat Flash Chat?
Hy3 is the stronger model overall, scoring 44.2 to 42.1 on the Noometry Index.
Is Hy3 or Longcat Flash Chat better for coding?
Hy3 scores higher on coding benchmarks: 46.8 versus 43.5 in the Noometry coding category.
How many benchmarks do Hy3 and Longcat Flash Chat share?
18 benchmarks have published results for both models. Hy3 has 19 scored results on Noometry and Longcat Flash Chat has 19.