# ERNIE 5.1 vs Sonar

> ERNIE 5.1 is the stronger model overall, scoring 43.8 to 38.5 on the Noometry Index.

- Canonical page: https://noometry.com/compare/ernie-5-1-vs-sonar
- Last updated: 2026-10-11
- Shared benchmarks: 0

## Summary

- The widest gap is in writing & preference, where ERNIE 5.1 leads 65.1 to 52.6.

## Snapshot

| | ERNIE 5.1 | Sonar |
|---|---|---|
| Provider | Baidu | Perplexity |
| Noometry Index | 43.8 | 38.5 |
| Rank | 83 | 187 |
| Context | — | 128K |
| Input $/M | — | $1 |
| Output $/M | — | $1 |
| Weights | Proprietary | Proprietary |

## Coding

- ERNIE 5.1: 44.0 (#76)
- Sonar: 35.7 (#221)

| Benchmark | ERNIE 5.1 | Sonar |
|---|---|---|
| LiveBench Coding | — | 35.1% |
| LMArena Coding | 1488 | — |

## Agentic & Tool Use

- ERNIE 5.1: —
- Sonar: —

| Benchmark | ERNIE 5.1 | Sonar |
|---|---|---|
| LMArena Search | 1227 | — |

## Reasoning

- ERNIE 5.1: 21.9 (#211)
- Sonar: 21.1 (#227)

| Benchmark | ERNIE 5.1 | Sonar |
|---|---|---|
| NYT Connections (extended) | 23.4% | — |
| LiveBench Reasoning | — | 46.3% |
| LMArena Hard Prompts | 1481 | — |
| LiveBench Data Analysis | — | 37.9% |
| LiveBench | — | 46.9% |

## Math

- ERNIE 5.1: 40.3 (#92)
- Sonar: 33.7 (#200)

| Benchmark | ERNIE 5.1 | Sonar |
|---|---|---|
| LiveBench Math | — | 41.6% |
| LMArena Math | 1481 | — |

## Knowledge

- ERNIE 5.1: 41.9 (#102)
- Sonar: —

| Benchmark | ERNIE 5.1 | Sonar |
|---|---|---|
| LMArena Expert | 1492 | — |

## Multilingual

- ERNIE 5.1: 55.5 (#29)
- Sonar: —

| Benchmark | ERNIE 5.1 | Sonar |
|---|---|---|
| LMArena Non-English | 1454 | — |
| LMArena Chinese | 1508 | — |
| LMArena French | 1488 | — |
| LMArena German | 1470 | — |
| LMArena Japanese | 1422 | — |
| LMArena Korean | 1427 | — |
| LMArena Russian | 1459 | — |
| LMArena Spanish | 1473 | — |

## Instruction Following

- ERNIE 5.1: 76.7 (#37)
- Sonar: 71.4 (#150)

| Benchmark | ERNIE 5.1 | Sonar |
|---|---|---|
| LiveBench Instruction Following | — | 76.2% |
| LMArena Instruction Following | 1460 | — |

## Long Context

- ERNIE 5.1: 44.7 (#59)
- Sonar: —

| Benchmark | ERNIE 5.1 | Sonar |
|---|---|---|
| LMArena Longer Query | 1462 | — |

## Writing & Preference

- ERNIE 5.1: 65.1 (#52)
- Sonar: 52.6 (#167)

| Benchmark | ERNIE 5.1 | Sonar |
|---|---|---|
| LMArena Text | 1468 | — |
| LMArena Creative Writing | 1441 | — |
| LMArena Multi-Turn | 1471 | — |
| LiveBench Language | — | 44.1% |

## FAQ

### Is ERNIE 5.1 better than Sonar?

ERNIE 5.1 is the stronger model overall, scoring 43.8 to 38.5 on the Noometry Index.

### Is ERNIE 5.1 or Sonar better for coding?

ERNIE 5.1 scores higher on coding benchmarks: 44.0 versus 35.7 in the Noometry coding category.

### How many benchmarks do ERNIE 5.1 and Sonar share?

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