# ERNIE 5.1 vs o1-mini

> ERNIE 5.1 is the stronger model overall, scoring 43.8 to 34.0 on the Noometry Index.

- Canonical page: https://noometry.com/compare/ernie-5-1-vs-o1-mini
- Last updated: 2026-10-11
- Shared benchmarks: 17

## Summary

- They share 17 benchmarks with published results for both. ERNIE 5.1 scores higher in 8 categories and o1-mini in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where ERNIE 5.1 leads 65.1 to 48.4.

## Snapshot

| | ERNIE 5.1 | o1-mini |
|---|---|---|
| Provider | Baidu | OpenAI |
| Noometry Index | 43.8 | 34.0 |
| Rank | 83 | 235 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Proprietary | Proprietary |

## Coding

- ERNIE 5.1: 44.0 (#76)
- o1-mini: 35.5 (#224)

| Benchmark | ERNIE 5.1 | o1-mini |
|---|---|---|
| LMArena Coding | 1488 | 1362 |
| Aider Polyglot | — | 32.9% |
| WeirdML | — | 36.3% |
| LiveBench Coding | — | 48% |
| HumanEval+ | — | 89% |
| MBPP+ | — | 78.8% |

## Agentic & Tool Use

- ERNIE 5.1: —
- o1-mini: 24.6 (#118)

| Benchmark | ERNIE 5.1 | o1-mini |
|---|---|---|
| Cybench | — | 10% |
| LMArena Search | 1227 | — |

## Reasoning

- ERNIE 5.1: 21.9 (#211)
- o1-mini: 8.8 (#346)

| Benchmark | ERNIE 5.1 | o1-mini |
|---|---|---|
| LMArena Hard Prompts | 1481 | 1333 |
| ARC-AGI-2 | — | 0.8% |
| SimpleBench | — | 18.1% |
| NYT Connections (extended) | 23.4% | — |
| ARC-AGI-1 | — | 14% |
| LiveBench Reasoning | — | 72.3% |
| LiveBench Data Analysis | — | 57.9% |
| Epoch Capabilities Index | — | 135.82 |
| LiveBench | — | 57.8% |

## Math

- ERNIE 5.1: 40.3 (#92)
- o1-mini: 35.4 (#186)

| Benchmark | ERNIE 5.1 | o1-mini |
|---|---|---|
| LMArena Math | 1481 | 1358 |
| OTIS Mock AIME 2024-2025 | — | 46.9% |
| LiveBench Math | — | 62% |
| MATH Level 5 | — | 89.2% |
| FrontierMath (Feb 2025 set) | — | 1.7% |

## Knowledge

- ERNIE 5.1: 41.9 (#102)
- o1-mini: 34.9 (#192)

| Benchmark | ERNIE 5.1 | o1-mini |
|---|---|---|
| LMArena Expert | 1492 | 1316 |
| GPQA Diamond | — | 62.4% |
| Confabulations | — | 18.6% |

## Multilingual

- ERNIE 5.1: 55.5 (#29)
- o1-mini: 43.6 (#182)

| Benchmark | ERNIE 5.1 | o1-mini |
|---|---|---|
| LMArena Non-English | 1454 | 1289 |
| LMArena Chinese | 1508 | 1314 |
| LMArena French | 1488 | 1293 |
| LMArena German | 1470 | 1278 |
| LMArena Japanese | 1422 | 1245 |
| LMArena Korean | 1427 | 1223 |
| LMArena Russian | 1459 | 1283 |
| LMArena Spanish | 1473 | 1303 |

## Instruction Following

- ERNIE 5.1: 76.7 (#37)
- o1-mini: 66.7 (#206)

| Benchmark | ERNIE 5.1 | o1-mini |
|---|---|---|
| LMArena Instruction Following | 1460 | 1304 |
| LiveBench Instruction Following | — | 65.4% |

## Long Context

- ERNIE 5.1: 44.7 (#59)
- o1-mini: 40.1 (#161)

| Benchmark | ERNIE 5.1 | o1-mini |
|---|---|---|
| LMArena Longer Query | 1462 | 1320 |

## Writing & Preference

- ERNIE 5.1: 65.1 (#52)
- o1-mini: 48.4 (#202)

| Benchmark | ERNIE 5.1 | o1-mini |
|---|---|---|
| LMArena Text | 1468 | 1317 |
| LMArena Creative Writing | 1441 | 1244 |
| LMArena Multi-Turn | 1471 | 1314 |
| Short-Story Creative Writing | — | 64.9% |
| LiveBench Language | — | 40.9% |

## FAQ

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

ERNIE 5.1 is the stronger model overall, scoring 43.8 to 34.0 on the Noometry Index.

### Is ERNIE 5.1 or o1-mini better for coding?

ERNIE 5.1 scores higher on coding benchmarks: 44.0 versus 35.5 in the Noometry coding category.

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

17 benchmarks have published results for both models. ERNIE 5.1 has 19 scored results on Noometry and o1-mini has 39.