Model comparison
ERNIE 5.1 vs GPT-5.5 Pro
GPT-5.5 Pro is the stronger model overall, scoring 64.3 to 43.1 on the Noometry Index.
Last verified . 0 shared benchmarks.
BaiduSummary
- The widest gap is in reasoning, where GPT-5.5 Pro leads 73.6 to 20.9.
Side by side
| ERNIE 5.1 | GPT-5.5 Pro | |
|---|---|---|
| Provider | Baidu | OpenAI |
| Noometry Index | 43.1 | 64.3 |
| Released | — | 2026-04-23 |
| Weights | Proprietary | Proprietary |
| Context window | — | 1.05M |
| Max output | — | 128K |
| Input $ / M tokens | — | $30 |
| Output $ / M tokens | — | $180 |
| Results tracked | 19 | 14 |
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Category by category
Coding Not comparable
ERNIE 5.1: 43.4 (#78), GPT-5.5 Pro: —
| Benchmark | ERNIE 5.1 | GPT-5.5 Pro |
|---|---|---|
| LMArena Coding | 1488 | — |
Agentic & Tool Use Not comparable
ERNIE 5.1: —, GPT-5.5 Pro: —
| Benchmark | ERNIE 5.1 | GPT-5.5 Pro |
|---|---|---|
| LMArena Search | 1227 | — |
Reasoning GPT-5.5 Pro leads
ERNIE 5.1: 20.9 (#209), GPT-5.5 Pro: 73.6 (#7)
| Benchmark | ERNIE 5.1 | GPT-5.5 Pro |
|---|---|---|
| ARC-AGI-2 | — | 84.6% |
| SimpleBench | — | 76.9% |
| NYT Connections (extended) | 23.4% | — |
| ARC-AGI-1 | — | 96.5% |
| CritPt | — | 30.6% |
| Chess Puzzles | — | 64% |
| LMArena Hard Prompts | 1481 | — |
| DTBench | — | 96% |
| LMCA | — | 53.9% |
| Epoch Capabilities Index | — | 162.45 |
Math GPT-5.5 Pro leads
ERNIE 5.1: 37.5 (#96), GPT-5.5 Pro: 83.8 (#8)
| Benchmark | ERNIE 5.1 | GPT-5.5 Pro |
|---|---|---|
| FrontierMath (Tiers 1-3) | — | 87.7% |
| FrontierMath Tier 4 | — | 78% |
| OTIS Mock AIME 2024-2025 | — | 100% |
| LMArena Math | 1481 | — |
| FrontierMath (Feb 2025 set) | — | 52.4% |
| FrontierMath Tier 4 (v1) | — | 39.6% |
Knowledge GPT-5.5 Pro leads
ERNIE 5.1: 41.2 (#103), GPT-5.5 Pro: 64.2 (#17)
| Benchmark | ERNIE 5.1 | GPT-5.5 Pro |
|---|---|---|
| GPQA Diamond | — | 93.9% |
| LMArena Expert | 1491 | — |
Multilingual Not comparable
ERNIE 5.1: 55.7 (#28), GPT-5.5 Pro: —
| Benchmark | ERNIE 5.1 | GPT-5.5 Pro |
|---|---|---|
| LMArena Non-English | 1455 | — |
| LMArena Chinese | 1507 | — |
| LMArena French | 1486 | — |
| LMArena German | 1470 | — |
| LMArena Japanese | 1422 | — |
| LMArena Korean | 1428 | — |
| LMArena Russian | 1459 | — |
| LMArena Spanish | 1472 | — |
Instruction Following Not comparable
ERNIE 5.1: 76.9 (#35), GPT-5.5 Pro: —
| Benchmark | ERNIE 5.1 | GPT-5.5 Pro |
|---|---|---|
| LMArena Instruction Following | 1460 | — |
Long Context Not comparable
ERNIE 5.1: 44.7 (#56), GPT-5.5 Pro: —
| Benchmark | ERNIE 5.1 | GPT-5.5 Pro |
|---|---|---|
| LMArena Longer Query | 1462 | — |
Writing & Preference Not comparable
ERNIE 5.1: 65.3 (#50), GPT-5.5 Pro: —
| Benchmark | ERNIE 5.1 | GPT-5.5 Pro |
|---|---|---|
| LMArena Text | 1468 | — |
| LMArena Creative Writing | 1440 | — |
| LMArena Multi-Turn | 1471 | — |
Frequently asked questions
Is ERNIE 5.1 better than GPT-5.5 Pro?
GPT-5.5 Pro is the stronger model overall, scoring 64.3 to 43.1 on the Noometry Index.
How many benchmarks do ERNIE 5.1 and GPT-5.5 Pro share?
0 benchmarks have published results for both models. ERNIE 5.1 has 19 scored results on Noometry and GPT-5.5 Pro has 14.