# Claude 2.1 vs ERNIE 5.1

> ERNIE 5.1 is the stronger model overall, scoring 43.1 to 24.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-2-1-vs-ernie-5-1
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in math, where ERNIE 5.1 leads 37.5 to 9.6.

## Snapshot

| | Claude 2.1 | ERNIE 5.1 |
|---|---|---|
| Provider | Anthropic | Baidu |
| Noometry Index | 24.9 | 43.1 |
| Rank | 340 | 87 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Proprietary | Proprietary |

## Coding

- Claude 2.1: 25.8 (#322)
- ERNIE 5.1: 43.4 (#78)

| Benchmark | Claude 2.1 | ERNIE 5.1 |
|---|---|---|
| WeirdML | 7.1% | — |
| LMArena Coding | — | 1488 |

## Agentic & Tool Use

- Claude 2.1: —
- ERNIE 5.1: —

| Benchmark | Claude 2.1 | ERNIE 5.1 |
|---|---|---|
| LMArena Search | — | 1227 |

## Reasoning

- Claude 2.1: 20.6 (#216)
- ERNIE 5.1: 20.9 (#209)

| Benchmark | Claude 2.1 | ERNIE 5.1 |
|---|---|---|
| NYT Connections (extended) | — | 23.4% |
| LMArena Hard Prompts | — | 1481 |
| DTBench | 51% | — |
| Epoch Capabilities Index | 119.22 | — |
| ForecastBench | 54.2 | — |

## Math

- Claude 2.1: 9.6 (#309)
- ERNIE 5.1: 37.5 (#96)

| Benchmark | Claude 2.1 | ERNIE 5.1 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 1.9% | — |
| LMArena Math | — | 1481 |

## Knowledge

- Claude 2.1: 15.5 (#287)
- ERNIE 5.1: 41.2 (#103)

| Benchmark | Claude 2.1 | ERNIE 5.1 |
|---|---|---|
| GPQA Diamond | 33% | — |
| LMArena Expert | — | 1491 |
| MMLU | 73.5% | — |

## Multilingual

- Claude 2.1: —
- ERNIE 5.1: 55.7 (#28)

| Benchmark | Claude 2.1 | ERNIE 5.1 |
|---|---|---|
| LMArena Non-English | — | 1455 |
| LMArena Chinese | — | 1507 |
| LMArena French | — | 1486 |
| LMArena German | — | 1470 |
| LMArena Japanese | — | 1422 |
| LMArena Korean | — | 1428 |
| LMArena Russian | — | 1459 |
| LMArena Spanish | — | 1472 |

## Instruction Following

- Claude 2.1: —
- ERNIE 5.1: 76.9 (#35)

| Benchmark | Claude 2.1 | ERNIE 5.1 |
|---|---|---|
| LMArena Instruction Following | — | 1460 |

## Long Context

- Claude 2.1: —
- ERNIE 5.1: 44.7 (#56)

| Benchmark | Claude 2.1 | ERNIE 5.1 |
|---|---|---|
| LMArena Longer Query | — | 1462 |

## Writing & Preference

- Claude 2.1: —
- ERNIE 5.1: 65.3 (#50)

| Benchmark | Claude 2.1 | ERNIE 5.1 |
|---|---|---|
| LMArena Text | — | 1468 |
| LMArena Creative Writing | — | 1440 |
| LMArena Multi-Turn | — | 1471 |

## FAQ

### Is Claude 2.1 better than ERNIE 5.1?

ERNIE 5.1 is the stronger model overall, scoring 43.1 to 24.9 on the Noometry Index.

### Is Claude 2.1 or ERNIE 5.1 better for coding?

ERNIE 5.1 scores higher on coding benchmarks: 43.4 versus 25.8 in the Noometry coding category.

### How many benchmarks do Claude 2.1 and ERNIE 5.1 share?

0 benchmarks have published results for both models. Claude 2.1 has 7 scored results on Noometry and ERNIE 5.1 has 19.