Model comparison
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.
Last verified . 17 shared benchmarks.
BaiduSummary
- 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.
Side by side
| ERNIE 5.1 | GPT-5.3 Chat | |
|---|---|---|
| Provider | Baidu | OpenAI |
| Noometry Index | 43.8 | 42.8 |
| Released | — | 2026-03-03 |
| Weights | Proprietary | Proprietary |
| Context window | — | 128K |
| Max output | — | 16K |
| Input $ / M tokens | — | $1.75 |
| Output $ / M tokens | — | $14 |
| Results tracked | 19 | 18 |
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Category by category
Coding ERNIE 5.1 leads
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 Not comparable
ERNIE 5.1: —, GPT-5.3 Chat: —
| Benchmark | ERNIE 5.1 | GPT-5.3 Chat |
|---|---|---|
| LMArena Search | 1227 | — |
Reasoning GPT-5.3 Chat leads
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 leads
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 leads
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 leads
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 leads
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 leads
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 leads
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 |
Frequently asked questions
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.