# Longcat Flash Chat vs Yi-34B

> Longcat Flash Chat is the stronger model overall, scoring 41.5 to 27.4 on the Noometry Index.

- Canonical page: https://noometry.com/compare/longcat-flash-chat-vs-yi-34b
- Last updated: 2026-10-10
- Shared benchmarks: 17

## Summary

- They share 17 benchmarks with published results for both. Longcat Flash Chat scores higher in 7 categories and Yi-34B in 1 category; 8 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Longcat Flash Chat leads 40.0 to 7.5.

## Snapshot

| | Longcat Flash Chat | Yi-34B |
|---|---|---|
| Provider | Meituan | 01.AI |
| Noometry Index | 41.5 | 27.4 |
| Rank | 121 | 325 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Open | Open |

## Coding

- Longcat Flash Chat: 42.9 (#85)
- Yi-34B: 31.8 (#269)

| Benchmark | Longcat Flash Chat | Yi-34B |
|---|---|---|
| LMArena Coding | 1471 | 1112 |

## Reasoning

- Longcat Flash Chat: 18.3 (#267)
- Yi-34B: 20.3 (#222)

| Benchmark | Longcat Flash Chat | Yi-34B |
|---|---|---|
| LMArena Hard Prompts | 1440 | 1104 |
| Kagi LLM Benchmark | 43.9% | — |
| NYT Connections (extended) | 17.7% | — |
| BIG-Bench Hard | — | 71.7% |
| Epoch Capabilities Index | — | 117.28 |

## Math

- Longcat Flash Chat: 36.6 (#107)
- Yi-34B: 19.8 (#277)

| Benchmark | Longcat Flash Chat | Yi-34B |
|---|---|---|
| LMArena Math | 1441 | 1114 |
| MATH Level 5 | — | 5.1% |
| GSM8K | — | 76% |

## Knowledge

- Longcat Flash Chat: 40.0 (#111)
- Yi-34B: 7.5 (#304)

| Benchmark | Longcat Flash Chat | Yi-34B |
|---|---|---|
| LMArena Expert | 1454 | 1061 |
| GPQA Diamond | — | 14.7% |
| MMLU | — | 76.3% |

## Multilingual

- Longcat Flash Chat: 52.1 (#95)
- Yi-34B: 29.9 (#259)

| Benchmark | Longcat Flash Chat | Yi-34B |
|---|---|---|
| LMArena Non-English | 1404 | 1079 |
| LMArena Chinese | 1465 | 1175 |
| LMArena French | 1457 | 1080 |
| LMArena German | 1409 | 1042 |
| LMArena Japanese | 1373 | 993 |
| LMArena Korean | 1372 | 959 |
| LMArena Russian | 1396 | 1050 |
| LMArena Spanish | 1445 | 1070 |

## Instruction Following

- Longcat Flash Chat: 74.6 (#92)
- Yi-34B: 56.4 (#269)

| Benchmark | Longcat Flash Chat | Yi-34B |
|---|---|---|
| LMArena Instruction Following | 1411 | 1091 |

## Long Context

- Longcat Flash Chat: 43.5 (#89)
- Yi-34B: 33.2 (#259)

| Benchmark | Longcat Flash Chat | Yi-34B |
|---|---|---|
| LMArena Longer Query | 1425 | 1094 |

## Writing & Preference

- Longcat Flash Chat: 61.2 (#88)
- Yi-34B: 34.3 (#268)

| Benchmark | Longcat Flash Chat | Yi-34B |
|---|---|---|
| LMArena Text | 1427 | 1129 |
| LMArena Creative Writing | 1388 | 1108 |
| LMArena Multi-Turn | 1418 | 1113 |

## FAQ

### Is Longcat Flash Chat better than Yi-34B?

Longcat Flash Chat is the stronger model overall, scoring 41.5 to 27.4 on the Noometry Index.

### Is Longcat Flash Chat or Yi-34B better for coding?

Longcat Flash Chat scores higher on coding benchmarks: 42.9 versus 31.8 in the Noometry coding category.

### How many benchmarks do Longcat Flash Chat and Yi-34B share?

17 benchmarks have published results for both models. Longcat Flash Chat has 19 scored results on Noometry and Yi-34B has 23.