# Longcat Flash Chat vs Qwen1.5 4b Chat

> Longcat Flash Chat is the stronger model overall, scoring 41.5 to 28.3 on the Noometry Index.

- Canonical page: https://noometry.com/compare/longcat-flash-chat-vs-qwen1-5-4b-chat
- Last updated: 2026-10-10
- Shared benchmarks: 13

## Summary

- They share 13 benchmarks with published results for both. Longcat Flash Chat scores higher in 8 categories and Qwen1.5 4b Chat in 0 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Longcat Flash Chat leads 61.2 to 23.9.

## Snapshot

| | Longcat Flash Chat | Qwen1.5 4b Chat |
|---|---|---|
| Provider | Meituan | Alibaba (Qwen) |
| Noometry Index | 41.5 | 28.3 |
| Rank | 121 | 319 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Open | Open |

## Coding

- Longcat Flash Chat: 42.9 (#85)
- Qwen1.5 4b Chat: 28.6 (#305)

| Benchmark | Longcat Flash Chat | Qwen1.5 4b Chat |
|---|---|---|
| LMArena Coding | 1471 | 999 |

## Reasoning

- Longcat Flash Chat: 18.3 (#267)
- Qwen1.5 4b Chat: 17.7 (#277)

| Benchmark | Longcat Flash Chat | Qwen1.5 4b Chat |
|---|---|---|
| LMArena Hard Prompts | 1440 | 976 |
| Kagi LLM Benchmark | 43.9% | — |
| NYT Connections (extended) | 17.7% | — |

## Math

- Longcat Flash Chat: 36.6 (#107)
- Qwen1.5 4b Chat: 27.9 (#233)

| Benchmark | Longcat Flash Chat | Qwen1.5 4b Chat |
|---|---|---|
| LMArena Math | 1441 | 1026 |

## Knowledge

- Longcat Flash Chat: 40.0 (#111)
- Qwen1.5 4b Chat: 26.2 (#252)

| Benchmark | Longcat Flash Chat | Qwen1.5 4b Chat |
|---|---|---|
| LMArena Expert | 1454 | 980 |

## Multilingual

- Longcat Flash Chat: 52.1 (#95)
- Qwen1.5 4b Chat: 24.2 (#285)

| Benchmark | Longcat Flash Chat | Qwen1.5 4b Chat |
|---|---|---|
| LMArena Non-English | 1404 | 979 |
| LMArena Chinese | 1465 | 1024 |
| LMArena German | 1409 | 902 |
| LMArena Russian | 1396 | 952 |
| LMArena French | 1457 | — |
| LMArena Japanese | 1373 | — |
| LMArena Korean | 1372 | — |
| LMArena Spanish | 1445 | — |

## Instruction Following

- Longcat Flash Chat: 74.6 (#92)
- Qwen1.5 4b Chat: 49.3 (#295)

| Benchmark | Longcat Flash Chat | Qwen1.5 4b Chat |
|---|---|---|
| LMArena Instruction Following | 1411 | 979 |

## Long Context

- Longcat Flash Chat: 43.5 (#89)
- Qwen1.5 4b Chat: 30.1 (#285)

| Benchmark | Longcat Flash Chat | Qwen1.5 4b Chat |
|---|---|---|
| LMArena Longer Query | 1425 | 988 |

## Writing & Preference

- Longcat Flash Chat: 61.2 (#88)
- Qwen1.5 4b Chat: 23.9 (#304)

| Benchmark | Longcat Flash Chat | Qwen1.5 4b Chat |
|---|---|---|
| LMArena Text | 1427 | 997 |
| LMArena Creative Writing | 1388 | 969 |
| LMArena Multi-Turn | 1418 | 977 |

## FAQ

### Is Longcat Flash Chat better than Qwen1.5 4b Chat?

Longcat Flash Chat is the stronger model overall, scoring 41.5 to 28.3 on the Noometry Index.

### Is Longcat Flash Chat or Qwen1.5 4b Chat better for coding?

Longcat Flash Chat scores higher on coding benchmarks: 42.9 versus 28.6 in the Noometry coding category.

### How many benchmarks do Longcat Flash Chat and Qwen1.5 4b Chat share?

13 benchmarks have published results for both models. Longcat Flash Chat has 19 scored results on Noometry and Qwen1.5 4b Chat has 13.