# ERNIE 5.1 vs Longcat Flash Chat

> ERNIE 5.1 is the stronger model overall, scoring 43.8 to 42.1 on the Noometry Index.

- Canonical page: https://noometry.com/compare/ernie-5-1-vs-longcat-flash-chat
- Last updated: 2026-10-11
- Shared benchmarks: 18

## Summary

- They share 18 benchmarks with published results for both. ERNIE 5.1 scores higher in 8 categories and Longcat Flash Chat in 0 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where ERNIE 5.1 leads 65.1 to 61.0.
- The biggest single-benchmark swing is NYT Connections (extended): 23.4% for ERNIE 5.1 and 17.7% for Longcat Flash Chat.
- Longcat Flash Chat has downloadable open weights; the other is API-only.

## Snapshot

| | ERNIE 5.1 | Longcat Flash Chat |
|---|---|---|
| Provider | Baidu | Meituan |
| Noometry Index | 43.8 | 42.1 |
| Rank | 83 | 120 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Proprietary | Open |

## Coding

- ERNIE 5.1: 44.0 (#76)
- Longcat Flash Chat: 43.5 (#87)

| Benchmark | ERNIE 5.1 | Longcat Flash Chat |
|---|---|---|
| LMArena Coding | 1488 | 1471 |

## Agentic & Tool Use

- ERNIE 5.1: —
- Longcat Flash Chat: —

| Benchmark | ERNIE 5.1 | Longcat Flash Chat |
|---|---|---|
| LMArena Search | 1227 | — |

## Reasoning

- ERNIE 5.1: 21.9 (#211)
- Longcat Flash Chat: 19.0 (#272)

| Benchmark | ERNIE 5.1 | Longcat Flash Chat |
|---|---|---|
| NYT Connections (extended) | 23.4% | 17.7% |
| LMArena Hard Prompts | 1481 | 1440 |
| Kagi LLM Benchmark | — | 43.9% |

## Math

- ERNIE 5.1: 40.3 (#92)
- Longcat Flash Chat: 39.4 (#107)

| Benchmark | ERNIE 5.1 | Longcat Flash Chat |
|---|---|---|
| LMArena Math | 1481 | 1442 |

## Knowledge

- ERNIE 5.1: 41.9 (#102)
- Longcat Flash Chat: 40.6 (#116)

| Benchmark | ERNIE 5.1 | Longcat Flash Chat |
|---|---|---|
| LMArena Expert | 1492 | 1454 |

## Multilingual

- ERNIE 5.1: 55.5 (#29)
- Longcat Flash Chat: 51.9 (#101)

| Benchmark | ERNIE 5.1 | Longcat Flash Chat |
|---|---|---|
| LMArena Non-English | 1454 | 1404 |
| LMArena Chinese | 1508 | 1465 |
| LMArena French | 1488 | 1456 |
| LMArena German | 1470 | 1408 |
| LMArena Japanese | 1422 | 1373 |
| LMArena Korean | 1427 | 1371 |
| LMArena Russian | 1459 | 1395 |
| LMArena Spanish | 1473 | 1445 |

## Instruction Following

- ERNIE 5.1: 76.7 (#37)
- Longcat Flash Chat: 74.4 (#96)

| Benchmark | ERNIE 5.1 | Longcat Flash Chat |
|---|---|---|
| LMArena Instruction Following | 1460 | 1411 |

## Long Context

- ERNIE 5.1: 44.7 (#59)
- Longcat Flash Chat: 43.5 (#93)

| Benchmark | ERNIE 5.1 | Longcat Flash Chat |
|---|---|---|
| LMArena Longer Query | 1462 | 1425 |

## Writing & Preference

- ERNIE 5.1: 65.1 (#52)
- Longcat Flash Chat: 61.0 (#91)

| Benchmark | ERNIE 5.1 | Longcat Flash Chat |
|---|---|---|
| LMArena Text | 1468 | 1427 |
| LMArena Creative Writing | 1441 | 1388 |
| LMArena Multi-Turn | 1471 | 1418 |

## FAQ

### Is ERNIE 5.1 better than Longcat Flash Chat?

ERNIE 5.1 is the stronger model overall, scoring 43.8 to 42.1 on the Noometry Index.

### Is ERNIE 5.1 or Longcat Flash Chat better for coding?

They score almost the same on coding (44.0 vs 43.5); test both on your own repository before choosing.

### How many benchmarks do ERNIE 5.1 and Longcat Flash Chat share?

18 benchmarks have published results for both models. ERNIE 5.1 has 19 scored results on Noometry and Longcat Flash Chat has 19.