# ERNIE 5.1 vs o1-pro

> ERNIE 5.1 is the stronger model overall, scoring 43.8 to 31.5 on the Noometry Index.

- Canonical page: https://noometry.com/compare/ernie-5-1-vs-o1-pro
- Last updated: 2026-10-12
- Shared benchmarks: 0

## Summary

- The widest gap is in knowledge, where ERNIE 5.1 leads 41.9 to 29.7.

## Snapshot

| | ERNIE 5.1 | o1-pro |
|---|---|---|
| Provider | Baidu | OpenAI |
| Noometry Index | 43.8 | 31.5 |
| Rank | 83 | 271 |
| Context | — | 200K |
| Input $/M | — | $150 |
| Output $/M | — | $600 |
| Weights | Proprietary | Proprietary |

## Coding

- ERNIE 5.1: 44.0 (#76)
- o1-pro: —

| Benchmark | ERNIE 5.1 | o1-pro |
|---|---|---|
| LMArena Coding | 1488 | — |

## Agentic & Tool Use

- ERNIE 5.1: —
- o1-pro: —

| Benchmark | ERNIE 5.1 | o1-pro |
|---|---|---|
| LMArena Search | 1227 | — |

## Reasoning

- ERNIE 5.1: 21.9 (#211)
- o1-pro: 20.4 (#239)

| Benchmark | ERNIE 5.1 | o1-pro |
|---|---|---|
| NYT Connections (extended) | 23.4% | — |
| ARC-AGI-1 | — | 23.3% |
| EnigmaEval | — | 6.1% |
| LMArena Hard Prompts | 1481 | — |

## Math

- ERNIE 5.1: 40.3 (#92)
- o1-pro: —

| Benchmark | ERNIE 5.1 | o1-pro |
|---|---|---|
| LMArena Math | 1481 | — |

## Knowledge

- ERNIE 5.1: 41.9 (#102)
- o1-pro: 29.7 (#234)

| Benchmark | ERNIE 5.1 | o1-pro |
|---|---|---|
| Humanity's Last Exam | — | 8.1% |
| LMArena Expert | 1492 | — |

## Multilingual

- ERNIE 5.1: 55.5 (#29)
- o1-pro: —

| Benchmark | ERNIE 5.1 | o1-pro |
|---|---|---|
| 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)
- o1-pro: —

| Benchmark | ERNIE 5.1 | o1-pro |
|---|---|---|
| LMArena Instruction Following | 1460 | — |

## Long Context

- ERNIE 5.1: 44.7 (#59)
- o1-pro: —

| Benchmark | ERNIE 5.1 | o1-pro |
|---|---|---|
| LMArena Longer Query | 1462 | — |

## Writing & Preference

- ERNIE 5.1: 65.1 (#52)
- o1-pro: —

| Benchmark | ERNIE 5.1 | o1-pro |
|---|---|---|
| LMArena Text | 1468 | — |
| LMArena Creative Writing | 1441 | — |
| LMArena Multi-Turn | 1471 | — |

## FAQ

### Is ERNIE 5.1 better than o1-pro?

ERNIE 5.1 is the stronger model overall, scoring 43.8 to 31.5 on the Noometry Index.

### How many benchmarks do ERNIE 5.1 and o1-pro share?

0 benchmarks have published results for both models. ERNIE 5.1 has 19 scored results on Noometry and o1-pro has 3.