# ERNIE 5.1 vs GPT-5.3 Chat

> ERNIE 5.1 is the stronger model overall, scoring 43.8 to 42.8 on the Noometry Index.

- Canonical page: https://noometry.com/compare/ernie-5-1-vs-gpt-5-3-chat
- Last updated: 2026-10-10
- Shared benchmarks: 17

## Summary

- They share 17 benchmarks with published results for both. ERNIE 5.1 scores higher in 7 categories and GPT-5.3 Chat in 1 category; 8 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where GPT-5.3 Chat leads 28.5 to 21.9.

## Snapshot

| | ERNIE 5.1 | GPT-5.3 Chat |
|---|---|---|
| Provider | Baidu | OpenAI |
| Noometry Index | 43.8 | 42.8 |
| Rank | 83 | 109 |
| Context | — | 128K |
| Input $/M | — | $1.75 |
| Output $/M | — | $14 |
| Weights | Proprietary | Proprietary |

## Coding

- ERNIE 5.1: 44.0 (#76)
- GPT-5.3 Chat: 41.4 (#124)

| Benchmark | ERNIE 5.1 | GPT-5.3 Chat |
|---|---|---|
| LMArena Coding | 1488 | 1408 |

## Agentic & Tool Use

- ERNIE 5.1: —
- GPT-5.3 Chat: —

| Benchmark | ERNIE 5.1 | GPT-5.3 Chat |
|---|---|---|
| LMArena Search | 1227 | — |

## Reasoning

- ERNIE 5.1: 21.9 (#211)
- GPT-5.3 Chat: 28.5 (#102)

| Benchmark | ERNIE 5.1 | GPT-5.3 Chat |
|---|---|---|
| LMArena Hard Prompts | 1481 | 1399 |
| NYT Connections (extended) | 23.4% | — |

## Math

- ERNIE 5.1: 40.3 (#92)
- GPT-5.3 Chat: 38.2 (#142)

| Benchmark | ERNIE 5.1 | GPT-5.3 Chat |
|---|---|---|
| LMArena Math | 1481 | 1389 |

## Knowledge

- ERNIE 5.1: 41.9 (#102)
- GPT-5.3 Chat: 38.8 (#140)

| Benchmark | ERNIE 5.1 | GPT-5.3 Chat |
|---|---|---|
| LMArena Expert | 1492 | 1397 |

## Multilingual

- ERNIE 5.1: 55.5 (#29)
- GPT-5.3 Chat: 50.3 (#124)

| Benchmark | ERNIE 5.1 | GPT-5.3 Chat |
|---|---|---|
| LMArena Non-English | 1454 | 1382 |
| LMArena Chinese | 1508 | 1432 |
| LMArena French | 1488 | 1397 |
| LMArena German | 1470 | 1384 |
| LMArena Japanese | 1422 | 1352 |
| LMArena Korean | 1427 | 1346 |
| LMArena Russian | 1459 | 1400 |
| LMArena Spanish | 1473 | 1371 |

## Instruction Following

- ERNIE 5.1: 76.7 (#37)
- GPT-5.3 Chat: 72.8 (#129)

| Benchmark | ERNIE 5.1 | GPT-5.3 Chat |
|---|---|---|
| LMArena Instruction Following | 1460 | 1378 |

## Long Context

- ERNIE 5.1: 44.7 (#59)
- GPT-5.3 Chat: 42.6 (#120)

| Benchmark | ERNIE 5.1 | GPT-5.3 Chat |
|---|---|---|
| LMArena Longer Query | 1462 | 1396 |

## Writing & Preference

- ERNIE 5.1: 65.1 (#52)
- GPT-5.3 Chat: 63.1 (#68)

| Benchmark | ERNIE 5.1 | GPT-5.3 Chat |
|---|---|---|
| LMArena Text | 1468 | 1389 |
| LMArena Creative Writing | 1441 | 1355 |
| LMArena Multi-Turn | 1471 | 1412 |
| EQ-Bench Creative Writing | — | 1690 |

## FAQ

### Is ERNIE 5.1 better than GPT-5.3 Chat?

ERNIE 5.1 is the stronger model overall, scoring 43.8 to 42.8 on the Noometry Index.

### Is ERNIE 5.1 or GPT-5.3 Chat better for coding?

ERNIE 5.1 scores higher on coding benchmarks: 44.0 versus 41.4 in the Noometry coding category.

### How many benchmarks do ERNIE 5.1 and GPT-5.3 Chat share?

17 benchmarks have published results for both models. ERNIE 5.1 has 19 scored results on Noometry and GPT-5.3 Chat has 18.