# Longcat Flash Chat vs Qwen3.5 Max Preview

> Qwen3.5 Max Preview is the stronger model overall, scoring 44.7 to 41.5 on the Noometry Index.

- Canonical page: https://noometry.com/compare/longcat-flash-chat-vs-qwen3-5-max-preview
- Last updated: 2026-10-10
- Shared benchmarks: 17

## Summary

- They share 17 benchmarks with published results for both. Longcat Flash Chat scores higher in 0 categories and Qwen3.5 Max Preview in 8 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Qwen3.5 Max Preview leads 29.6 to 18.3.
- Longcat Flash Chat has downloadable open weights; the other is API-only.

## Snapshot

| | Longcat Flash Chat | Qwen3.5 Max Preview |
|---|---|---|
| Provider | Meituan | Alibaba (Qwen) |
| Noometry Index | 41.5 | 44.7 |
| Rank | 121 | 72 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Open | Proprietary |

## Coding

- Longcat Flash Chat: 42.9 (#85)
- Qwen3.5 Max Preview: 43.4 (#79)

| Benchmark | Longcat Flash Chat | Qwen3.5 Max Preview |
|---|---|---|
| LMArena Coding | 1471 | 1488 |

## Reasoning

- Longcat Flash Chat: 18.3 (#267)
- Qwen3.5 Max Preview: 29.6 (#81)

| Benchmark | Longcat Flash Chat | Qwen3.5 Max Preview |
|---|---|---|
| LMArena Hard Prompts | 1440 | 1483 |
| Kagi LLM Benchmark | 43.9% | — |
| NYT Connections (extended) | 17.7% | — |

## Math

- Longcat Flash Chat: 36.6 (#107)
- Qwen3.5 Max Preview: 37.3 (#99)

| Benchmark | Longcat Flash Chat | Qwen3.5 Max Preview |
|---|---|---|
| LMArena Math | 1441 | 1473 |

## Knowledge

- Longcat Flash Chat: 40.0 (#111)
- Qwen3.5 Max Preview: 41.1 (#104)

| Benchmark | Longcat Flash Chat | Qwen3.5 Max Preview |
|---|---|---|
| LMArena Expert | 1454 | 1489 |

## Multilingual

- Longcat Flash Chat: 52.1 (#95)
- Qwen3.5 Max Preview: 56.4 (#21)

| Benchmark | Longcat Flash Chat | Qwen3.5 Max Preview |
|---|---|---|
| LMArena Non-English | 1404 | 1465 |
| LMArena Chinese | 1465 | 1534 |
| LMArena French | 1457 | 1483 |
| LMArena German | 1409 | 1487 |
| LMArena Japanese | 1373 | 1497 |
| LMArena Korean | 1372 | 1438 |
| LMArena Russian | 1396 | 1472 |
| LMArena Spanish | 1445 | 1470 |

## Instruction Following

- Longcat Flash Chat: 74.6 (#92)
- Qwen3.5 Max Preview: 77.2 (#28)

| Benchmark | Longcat Flash Chat | Qwen3.5 Max Preview |
|---|---|---|
| LMArena Instruction Following | 1411 | 1467 |

## Long Context

- Longcat Flash Chat: 43.5 (#89)
- Qwen3.5 Max Preview: 45.2 (#44)

| Benchmark | Longcat Flash Chat | Qwen3.5 Max Preview |
|---|---|---|
| LMArena Longer Query | 1425 | 1477 |

## Writing & Preference

- Longcat Flash Chat: 61.2 (#88)
- Qwen3.5 Max Preview: 66.1 (#39)

| Benchmark | Longcat Flash Chat | Qwen3.5 Max Preview |
|---|---|---|
| LMArena Text | 1427 | 1471 |
| LMArena Creative Writing | 1388 | 1464 |
| LMArena Multi-Turn | 1418 | 1478 |

## FAQ

### Is Longcat Flash Chat better than Qwen3.5 Max Preview?

Qwen3.5 Max Preview is the stronger model overall, scoring 44.7 to 41.5 on the Noometry Index.

### Is Longcat Flash Chat or Qwen3.5 Max Preview better for coding?

They score almost the same on coding (42.9 vs 43.4); test both on your own repository before choosing.

### How many benchmarks do Longcat Flash Chat and Qwen3.5 Max Preview share?

17 benchmarks have published results for both models. Longcat Flash Chat has 19 scored results on Noometry and Qwen3.5 Max Preview has 17.