Model comparison
ERNIE 5.1 vs Grok 4.20 (Non-Reasoning)
Grok 4.20 (Non-Reasoning) is the stronger model overall, scoring 48.6 to 43.8 on the Noometry Index.
Last verified . 19 shared benchmarks.
BaiduSummary
- They share 19 benchmarks with published results for both. ERNIE 5.1 scores higher in 3 categories and Grok 4.20 (Non-Reasoning) in 5 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Grok 4.20 (Non-Reasoning) leads 52.3 to 21.9.
- The biggest single-benchmark swing is NYT Connections (extended): 23.4% for ERNIE 5.1 and 85.4% for Grok 4.20 (Non-Reasoning).
Side by side
| ERNIE 5.1 | Grok 4.20 (Non-Reasoning) | |
|---|---|---|
| Provider | Baidu | xAI |
| Noometry Index | 43.8 | 48.6 |
| Released | — | 2026-02-17 |
| Weights | Proprietary | Proprietary |
| Context window | — | 1M |
| Max output | — | 30K |
| Input $ / M tokens | — | $1.25 |
| Output $ / M tokens | — | $2.50 |
| Results tracked | 19 | 46 |
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Category by category
Coding ERNIE 5.1 leads
ERNIE 5.1: 44.0 (#76), Grok 4.20 (Non-Reasoning): 42.1 (#112)
| Benchmark | ERNIE 5.1 | Grok 4.20 (Non-Reasoning) |
|---|---|---|
| LMArena Coding | 1488 | 1459 |
| LMArena WebDev | — | 1375 |
| WeirdML | — | 52.3% |
| ALE-Bench | — | 1,150 |
Agentic & Tool Use Not comparable
ERNIE 5.1: —, Grok 4.20 (Non-Reasoning): 34.4 (#46)
| Benchmark | ERNIE 5.1 | Grok 4.20 (Non-Reasoning) |
|---|---|---|
| LMArena Search | 1227 | 1189 |
| Terminal-Bench | — | 57.3% |
| τ²-bench Banking | — | 18% |
| Vending-Bench 2 | — | 4,663 |
Reasoning Grok 4.20 (Non-Reasoning) leads
ERNIE 5.1: 21.9 (#211), Grok 4.20 (Non-Reasoning): 52.3 (#32)
| Benchmark | ERNIE 5.1 | Grok 4.20 (Non-Reasoning) |
|---|---|---|
| NYT Connections (extended) | 23.4% | 85.4% |
| LMArena Hard Prompts | 1481 | 1451 |
| ARC-AGI-2 | — | 65.1% |
| Kagi LLM Benchmark | — | 75% |
| ARC-AGI-1 | — | 89.5% |
| Chess Puzzles | — | 24% |
| Thematic Generalization | — | 63.8% |
| DTBench | — | 90.1% |
| LMCA | — | 38.7% |
| Epoch Capabilities Index | — | 151.98 |
| ForecastBench | — | 61.4 |
Math Grok 4.20 (Non-Reasoning) leads
ERNIE 5.1: 40.3 (#92), Grok 4.20 (Non-Reasoning): 48.2 (#65)
| Benchmark | ERNIE 5.1 | Grok 4.20 (Non-Reasoning) |
|---|---|---|
| LMArena Math | 1481 | 1455 |
| FrontierMath (Tiers 1-3) | — | 44.9% |
| FrontierMath Tier 4 | — | 17.1% |
| OTIS Mock AIME 2024-2025 | — | 92.2% |
| ProofBench | — | 14% |
Knowledge Grok 4.20 (Non-Reasoning) leads
ERNIE 5.1: 41.9 (#102), Grok 4.20 (Non-Reasoning): 52.8 (#60)
| Benchmark | ERNIE 5.1 | Grok 4.20 (Non-Reasoning) |
|---|---|---|
| LMArena Expert | 1492 | 1439 |
| GPQA Diamond | — | 89.3% |
| SimpleQA Verified | — | 30.2% |
Multimodal Not comparable
ERNIE 5.1: —, Grok 4.20 (Non-Reasoning): 33.3 (#98)
| Benchmark | ERNIE 5.1 | Grok 4.20 (Non-Reasoning) |
|---|---|---|
| LMArena Vision | — | 1263 |
| Blueprint-Bench 2 | — | 0% |
| LMArena Document | — | 1416 |
Multilingual Too close to call
ERNIE 5.1: 55.5 (#29), Grok 4.20 (Non-Reasoning): 54.5 (#40)
| Benchmark | ERNIE 5.1 | Grok 4.20 (Non-Reasoning) |
|---|---|---|
| LMArena Non-English | 1454 | 1441 |
| LMArena Chinese | 1508 | 1481 |
| LMArena French | 1488 | 1476 |
| LMArena German | 1470 | 1465 |
| LMArena Japanese | 1422 | 1449 |
| LMArena Korean | 1427 | 1417 |
| LMArena Russian | 1459 | 1458 |
| LMArena Spanish | 1473 | 1443 |
Instruction Following ERNIE 5.1 leads
ERNIE 5.1: 76.7 (#37), Grok 4.20 (Non-Reasoning): 74.8 (#83)
| Benchmark | ERNIE 5.1 | Grok 4.20 (Non-Reasoning) |
|---|---|---|
| LMArena Instruction Following | 1460 | 1420 |
Long Context Too close to call
ERNIE 5.1: 44.7 (#59), Grok 4.20 (Non-Reasoning): 45.5 (#34)
| Benchmark | ERNIE 5.1 | Grok 4.20 (Non-Reasoning) |
|---|---|---|
| LMArena Longer Query | 1462 | 1437 |
| CL-bench | — | 22.2% |
| CL-bench Life | — | 11.9% |
Writing & Preference Too close to call
ERNIE 5.1: 65.1 (#52), Grok 4.20 (Non-Reasoning): 65.7 (#44)
| Benchmark | ERNIE 5.1 | Grok 4.20 (Non-Reasoning) |
|---|---|---|
| LMArena Text | 1468 | 1451 |
| LMArena Creative Writing | 1441 | 1438 |
| LMArena Multi-Turn | 1471 | 1456 |
| EQ-Bench Creative Writing | — | 1574 |
Frequently asked questions
Is ERNIE 5.1 better than Grok 4.20 (Non-Reasoning)?
Grok 4.20 (Non-Reasoning) is the stronger model overall, scoring 48.6 to 43.8 on the Noometry Index.
Is ERNIE 5.1 or Grok 4.20 (Non-Reasoning) better for coding?
ERNIE 5.1 scores higher on coding benchmarks: 44.0 versus 42.1 in the Noometry coding category.
How many benchmarks do ERNIE 5.1 and Grok 4.20 (Non-Reasoning) share?
19 benchmarks have published results for both models. ERNIE 5.1 has 19 scored results on Noometry and Grok 4.20 (Non-Reasoning) has 46.