# ERNIE 5.1 vs Yi-34B

> ERNIE 5.1 is the stronger model overall, scoring 43.8 to 27.8 on the Noometry Index.

- Canonical page: https://noometry.com/compare/ernie-5-1-vs-yi-34b
- Last updated: 2026-10-10
- Shared benchmarks: 17

## Summary

- They share 17 benchmarks with published results for both. ERNIE 5.1 scores higher in 8 categories and Yi-34B in 0 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where ERNIE 5.1 leads 41.9 to 7.5.
- Yi-34B has downloadable open weights; the other is API-only.

## Snapshot

| | ERNIE 5.1 | Yi-34B |
|---|---|---|
| Provider | Baidu | 01.AI |
| Noometry Index | 43.8 | 27.8 |
| Rank | 83 | 329 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Proprietary | Open |

## Coding

- ERNIE 5.1: 44.0 (#76)
- Yi-34B: 32.3 (#274)

| Benchmark | ERNIE 5.1 | Yi-34B |
|---|---|---|
| LMArena Coding | 1488 | 1112 |

## Agentic & Tool Use

- ERNIE 5.1: —
- Yi-34B: —

| Benchmark | ERNIE 5.1 | Yi-34B |
|---|---|---|
| LMArena Search | 1227 | — |

## Reasoning

- ERNIE 5.1: 21.9 (#211)
- Yi-34B: 21.2 (#226)

| Benchmark | ERNIE 5.1 | Yi-34B |
|---|---|---|
| LMArena Hard Prompts | 1481 | 1104 |
| NYT Connections (extended) | 23.4% | — |
| BIG-Bench Hard | — | 71.7% |
| Epoch Capabilities Index | — | 117.39 |

## Math

- ERNIE 5.1: 40.3 (#92)
- Yi-34B: 21.6 (#282)

| Benchmark | ERNIE 5.1 | Yi-34B |
|---|---|---|
| LMArena Math | 1481 | 1114 |
| MATH Level 5 | — | 5.1% |
| GSM8K | — | 76% |

## Knowledge

- ERNIE 5.1: 41.9 (#102)
- Yi-34B: 7.5 (#309)

| Benchmark | ERNIE 5.1 | Yi-34B |
|---|---|---|
| LMArena Expert | 1492 | 1061 |
| GPQA Diamond | — | 14.7% |
| MMLU | — | 76.3% |

## Multilingual

- ERNIE 5.1: 55.5 (#29)
- Yi-34B: 29.7 (#264)

| Benchmark | ERNIE 5.1 | Yi-34B |
|---|---|---|
| LMArena Non-English | 1454 | 1079 |
| LMArena Chinese | 1508 | 1176 |
| LMArena French | 1488 | 1081 |
| LMArena German | 1470 | 1042 |
| LMArena Japanese | 1422 | 993 |
| LMArena Korean | 1427 | 959 |
| LMArena Russian | 1459 | 1050 |
| LMArena Spanish | 1473 | 1070 |

## Instruction Following

- ERNIE 5.1: 76.7 (#37)
- Yi-34B: 56.2 (#274)

| Benchmark | ERNIE 5.1 | Yi-34B |
|---|---|---|
| LMArena Instruction Following | 1460 | 1091 |

## Long Context

- ERNIE 5.1: 44.7 (#59)
- Yi-34B: 33.2 (#264)

| Benchmark | ERNIE 5.1 | Yi-34B |
|---|---|---|
| LMArena Longer Query | 1462 | 1094 |

## Writing & Preference

- ERNIE 5.1: 65.1 (#52)
- Yi-34B: 34.1 (#273)

| Benchmark | ERNIE 5.1 | Yi-34B |
|---|---|---|
| LMArena Text | 1468 | 1129 |
| LMArena Creative Writing | 1441 | 1108 |
| LMArena Multi-Turn | 1471 | 1113 |

## FAQ

### Is ERNIE 5.1 better than Yi-34B?

ERNIE 5.1 is the stronger model overall, scoring 43.8 to 27.8 on the Noometry Index.

### Is ERNIE 5.1 or Yi-34B better for coding?

ERNIE 5.1 scores higher on coding benchmarks: 44.0 versus 32.3 in the Noometry coding category.

### How many benchmarks do ERNIE 5.1 and Yi-34B share?

17 benchmarks have published results for both models. ERNIE 5.1 has 19 scored results on Noometry and Yi-34B has 23.