# Longcat Flash Chat vs Qwen2.5 Plus 1127

> Longcat Flash Chat is the stronger model overall, scoring 42.1 to 38.8 on the Noometry Index.

- Canonical page: https://noometry.com/compare/longcat-flash-chat-vs-qwen2-5-plus
- Last updated: 2026-10-10
- Shared benchmarks: 14

## Summary

- They share 14 benchmarks with published results for both. Longcat Flash Chat scores higher in 7 categories and Qwen2.5 Plus 1127 in 1 category; 8 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Longcat Flash Chat leads 61.0 to 49.4.
- Longcat Flash Chat has downloadable open weights; the other is API-only.

## Snapshot

| | Longcat Flash Chat | Qwen2.5 Plus 1127 |
|---|---|---|
| Provider | Meituan | Alibaba (Qwen) |
| Noometry Index | 42.1 | 38.8 |
| Rank | 120 | 181 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Open | Proprietary |

## Coding

- Longcat Flash Chat: 43.5 (#87)
- Qwen2.5 Plus 1127: 38.5 (#175)

| Benchmark | Longcat Flash Chat | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Coding | 1471 | 1314 |

## Reasoning

- Longcat Flash Chat: 19.0 (#272)
- Qwen2.5 Plus 1127: 25.9 (#141)

| Benchmark | Longcat Flash Chat | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Hard Prompts | 1440 | 1299 |
| Kagi LLM Benchmark | 43.9% | — |
| NYT Connections (extended) | 17.7% | — |

## Math

- Longcat Flash Chat: 39.4 (#107)
- Qwen2.5 Plus 1127: 36.1 (#174)

| Benchmark | Longcat Flash Chat | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Math | 1442 | 1298 |

## Knowledge

- Longcat Flash Chat: 40.6 (#116)
- Qwen2.5 Plus 1127: 35.5 (#183)

| Benchmark | Longcat Flash Chat | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Expert | 1454 | 1289 |

## Multilingual

- Longcat Flash Chat: 51.9 (#101)
- Qwen2.5 Plus 1127: 41.9 (#201)

| Benchmark | Longcat Flash Chat | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Non-English | 1404 | 1265 |
| LMArena Chinese | 1465 | 1314 |
| LMArena German | 1408 | 1231 |
| LMArena Japanese | 1373 | 1207 |
| LMArena Russian | 1395 | 1271 |
| LMArena French | 1456 | — |
| LMArena Korean | 1371 | — |
| LMArena Spanish | 1445 | — |

## Instruction Following

- Longcat Flash Chat: 74.4 (#96)
- Qwen2.5 Plus 1127: 67.2 (#199)

| Benchmark | Longcat Flash Chat | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Instruction Following | 1411 | 1275 |

## Long Context

- Longcat Flash Chat: 43.5 (#93)
- Qwen2.5 Plus 1127: 39.2 (#184)

| Benchmark | Longcat Flash Chat | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Longer Query | 1425 | 1292 |

## Writing & Preference

- Longcat Flash Chat: 61.0 (#91)
- Qwen2.5 Plus 1127: 49.4 (#192)

| Benchmark | Longcat Flash Chat | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Text | 1427 | 1299 |
| LMArena Creative Writing | 1388 | 1262 |
| LMArena Multi-Turn | 1418 | 1299 |

## FAQ

### Is Longcat Flash Chat better than Qwen2.5 Plus 1127?

Longcat Flash Chat is the stronger model overall, scoring 42.1 to 38.8 on the Noometry Index.

### Is Longcat Flash Chat or Qwen2.5 Plus 1127 better for coding?

Longcat Flash Chat scores higher on coding benchmarks: 43.5 versus 38.5 in the Noometry coding category.

### How many benchmarks do Longcat Flash Chat and Qwen2.5 Plus 1127 share?

14 benchmarks have published results for both models. Longcat Flash Chat has 19 scored results on Noometry and Qwen2.5 Plus 1127 has 14.