# Longcat Flash Chat vs Qwen3.5-9B

> Longcat Flash Chat is the stronger model overall, scoring 41.5 to 33.3 on the Noometry Index.

- Canonical page: https://noometry.com/compare/longcat-flash-chat-vs-qwen3-5-9b
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in coding, where Longcat Flash Chat leads 42.9 to 35.3.

## Snapshot

| | Longcat Flash Chat | Qwen3.5-9B |
|---|---|---|
| Provider | Meituan | Alibaba (Qwen) |
| Noometry Index | 41.5 | 33.3 |
| Rank | 121 | 235 |
| Context | — | 262K |
| Input $/M | — | $0.10 |
| Output $/M | — | $0.15 |
| Weights | Open | Open |

## Coding

- Longcat Flash Chat: 42.9 (#85)
- Qwen3.5-9B: 35.3 (#213)

| Benchmark | Longcat Flash Chat | Qwen3.5-9B |
|---|---|---|
| SciCode | — | 27.5% |
| LMArena Coding | 1471 | — |

## Agentic & Tool Use

- Longcat Flash Chat: —
- Qwen3.5-9B: 14.4 (#143)

| Benchmark | Longcat Flash Chat | Qwen3.5-9B |
|---|---|---|
| Terminal-Bench | — | 9.2% |

## Reasoning

- Longcat Flash Chat: 18.3 (#267)
- Qwen3.5-9B: 22.5 (#178)

| Benchmark | Longcat Flash Chat | Qwen3.5-9B |
|---|---|---|
| Kagi LLM Benchmark | 43.9% | — |
| NYT Connections (extended) | 17.7% | — |
| CritPt | — | 0.3% |
| Chess Puzzles | — | 12% |
| LMArena Hard Prompts | 1440 | — |
| DTBench | — | 71.2% |
| LMCA | — | 24.5% |
| Epoch Capabilities Index | — | 139.45 |

## Math

- Longcat Flash Chat: 36.6 (#107)
- Qwen3.5-9B: 33.5 (#174)

| Benchmark | Longcat Flash Chat | Qwen3.5-9B |
|---|---|---|
| MathArena Final-Answer Competitions | — | 48.5% |
| OTIS Mock AIME 2024-2025 | — | 61.7% |
| LMArena Math | 1441 | — |

## Knowledge

- Longcat Flash Chat: 40.0 (#111)
- Qwen3.5-9B: 46.0 (#77)

| Benchmark | Longcat Flash Chat | Qwen3.5-9B |
|---|---|---|
| GPQA Diamond | — | 79% |
| LMArena Expert | 1454 | — |

## Multilingual

- Longcat Flash Chat: 52.1 (#95)
- Qwen3.5-9B: —

| Benchmark | Longcat Flash Chat | Qwen3.5-9B |
|---|---|---|
| LMArena Non-English | 1404 | — |
| LMArena Chinese | 1465 | — |
| LMArena French | 1457 | — |
| LMArena German | 1409 | — |
| LMArena Japanese | 1373 | — |
| LMArena Korean | 1372 | — |
| LMArena Russian | 1396 | — |
| LMArena Spanish | 1445 | — |

## Instruction Following

- Longcat Flash Chat: 74.6 (#92)
- Qwen3.5-9B: —

| Benchmark | Longcat Flash Chat | Qwen3.5-9B |
|---|---|---|
| LMArena Instruction Following | 1411 | — |

## Long Context

- Longcat Flash Chat: 43.5 (#89)
- Qwen3.5-9B: —

| Benchmark | Longcat Flash Chat | Qwen3.5-9B |
|---|---|---|
| LMArena Longer Query | 1425 | — |

## Writing & Preference

- Longcat Flash Chat: 61.2 (#88)
- Qwen3.5-9B: —

| Benchmark | Longcat Flash Chat | Qwen3.5-9B |
|---|---|---|
| LMArena Text | 1427 | — |
| LMArena Creative Writing | 1388 | — |
| LMArena Multi-Turn | 1418 | — |

## FAQ

### Is Longcat Flash Chat better than Qwen3.5-9B?

Longcat Flash Chat is the stronger model overall, scoring 41.5 to 33.3 on the Noometry Index.

### Is Longcat Flash Chat or Qwen3.5-9B better for coding?

Longcat Flash Chat scores higher on coding benchmarks: 42.9 versus 35.3 in the Noometry coding category.

### How many benchmarks do Longcat Flash Chat and Qwen3.5-9B share?

0 benchmarks have published results for both models. Longcat Flash Chat has 19 scored results on Noometry and Qwen3.5-9B has 10.