Model comparison
ERNIE 5.1 vs Grok 3
ERNIE 5.1 is the stronger model overall, scoring 43.8 to 39.9 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 Grok 3 in 1 category; 8 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where ERNIE 5.1 leads 65.1 to 55.8.
Side by side
| ERNIE 5.1 | Grok 3 | |
|---|---|---|
| Provider | Baidu | xAI |
| Noometry Index | 43.8 | 39.9 |
| Released | — | 2025-04-09 |
| Weights | Proprietary | Proprietary |
| Context window | — | — |
| Max output | — | — |
| Input $ / M tokens | — | — |
| Output $ / M tokens | — | — |
| Results tracked | 19 | 40 |
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Category by category
Coding ERNIE 5.1 leads
ERNIE 5.1: 44.0 (#76), Grok 3: 41.9 (#115)
| Benchmark | ERNIE 5.1 | Grok 3 |
|---|---|---|
| LMArena Coding | 1488 | 1432 |
| Aider Polyglot | — | 53.3% |
| WeirdML | — | 37.2% |
Agentic & Tool Use Not comparable
ERNIE 5.1: —, Grok 3: 30.5 (#76)
| Benchmark | ERNIE 5.1 | Grok 3 |
|---|---|---|
| BALROG | — | 29.5% |
| LMArena Search | 1227 | — |
Reasoning ERNIE 5.1 leads
ERNIE 5.1: 21.9 (#211), Grok 3: 13.7 (#333)
| Benchmark | ERNIE 5.1 | Grok 3 |
|---|---|---|
| LMArena Hard Prompts | 1481 | 1434 |
| ARC-AGI-2 | — | 0% |
| SimpleBench | — | 36.1% |
| Kagi LLM Benchmark | — | 61.3% |
| NYT Connections (extended) | 23.4% | — |
| ARC-AGI-1 | — | 5.5% |
| Epoch Capabilities Index | — | 138.33 |
Math ERNIE 5.1 leads
ERNIE 5.1: 40.3 (#92), Grok 3: 38.0 (#145)
| Benchmark | ERNIE 5.1 | Grok 3 |
|---|---|---|
| LMArena Math | 1481 | 1391 |
| OTIS Mock AIME 2024-2025 | — | 55.6% |
| Omni-MATH | — | 46.4% |
| MATH Level 5 | — | 88.7% |
| FrontierMath (Feb 2025 set) | — | 3.8% |
| FrontierMath Tier 4 (v1) | — | 0% |
Knowledge Grok 3 leads
ERNIE 5.1: 41.9 (#102), Grok 3: 46.2 (#82)
| Benchmark | ERNIE 5.1 | Grok 3 |
|---|---|---|
| LMArena Expert | 1492 | 1421 |
| GPQA Diamond | — | 75.8% |
| MMLU-Pro | — | 78.8% |
| Confabulations | — | 14.2% |
| Vectara Hallucination Rate | — | 5.8% |
| GPQA (HELM) | — | 65% |
Multilingual ERNIE 5.1 leads
ERNIE 5.1: 55.5 (#29), Grok 3: 52.3 (#87)
| Benchmark | ERNIE 5.1 | Grok 3 |
|---|---|---|
| LMArena Non-English | 1454 | 1410 |
| LMArena Chinese | 1508 | 1448 |
| LMArena French | 1488 | 1460 |
| LMArena German | 1470 | 1431 |
| LMArena Japanese | 1422 | 1387 |
| LMArena Korean | 1427 | 1373 |
| LMArena Russian | 1459 | 1416 |
| LMArena Spanish | 1473 | 1417 |
Instruction Following ERNIE 5.1 leads
ERNIE 5.1: 76.7 (#37), Grok 3: 75.0 (#73)
| Benchmark | ERNIE 5.1 | Grok 3 |
|---|---|---|
| LMArena Instruction Following | 1460 | 1409 |
| IFEval | — | 88.4% |
Long Context ERNIE 5.1 leads
ERNIE 5.1: 44.7 (#59), Grok 3: 38.7 (#192)
| Benchmark | ERNIE 5.1 | Grok 3 |
|---|---|---|
| LMArena Longer Query | 1462 | 1439 |
| Fiction.LiveBench | — | 58.3% |
Writing & Preference ERNIE 5.1 leads
ERNIE 5.1: 65.1 (#52), Grok 3: 55.8 (#141)
| Benchmark | ERNIE 5.1 | Grok 3 |
|---|---|---|
| LMArena Text | 1468 | 1426 |
| LMArena Creative Writing | 1441 | 1414 |
| LMArena Multi-Turn | 1471 | 1425 |
| Short-Story Creative Writing | — | 76.4% |
| EQ-Bench Creative Writing | — | 1186 |
| WildBench | — | 84.9% |
Frequently asked questions
Is ERNIE 5.1 better than Grok 3?
ERNIE 5.1 is the stronger model overall, scoring 43.8 to 39.9 on the Noometry Index.
Is ERNIE 5.1 or Grok 3 better for coding?
ERNIE 5.1 scores higher on coding benchmarks: 44.0 versus 41.9 in the Noometry coding category.
How many benchmarks do ERNIE 5.1 and Grok 3 share?
17 benchmarks have published results for both models. ERNIE 5.1 has 19 scored results on Noometry and Grok 3 has 40.