Model comparison
ERNIE 5.1 vs Muse Spark 1.2
Muse Spark 1.2 is the stronger model overall, scoring 50.3 to 43.8 on the Noometry Index.
Last verified . 15 shared benchmarks.
Baidu
MetaSummary
- They share 15 benchmarks with published results for both. ERNIE 5.1 scores higher in 0 categories and Muse Spark 1.2 in 8 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Muse Spark 1.2 leads 51.3 to 21.9.
- The biggest single-benchmark swing is NYT Connections (extended): 23.4% for ERNIE 5.1 and 79.2% for Muse Spark 1.2.
Side by side
| ERNIE 5.1 | Muse Spark 1.2 | |
|---|---|---|
| Provider | Baidu | Meta |
| Noometry Index | 43.8 | 50.3 |
| Released | — | 2026-08-05 |
| Weights | Proprietary | Proprietary |
| Context window | — | 1.05M |
| Max output | — | 131K |
| Input $ / M tokens | — | $1.25 |
| Output $ / M tokens | — | $4.25 |
| Results tracked | 19 | 31 |
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Category by category
Coding Muse Spark 1.2 leads
ERNIE 5.1: 44.0 (#76), Muse Spark 1.2: 49.2 (#51)
| Benchmark | ERNIE 5.1 | Muse Spark 1.2 |
|---|---|---|
| LMArena Coding | 1488 | 1495 |
| DeepSWE | — | 54.9% |
| LMArena WebDev | — | 1533 |
| FrontierSWE | — | 12% |
| SciCode | — | 56.4% |
| WeirdML | — | 60.3% |
Agentic & Tool Use Not comparable
ERNIE 5.1: —, Muse Spark 1.2: 29.4 (#87)
| Benchmark | ERNIE 5.1 | Muse Spark 1.2 |
|---|---|---|
| APEX-Agents | — | 36.4% |
| GDP.pdf | — | 16% |
| LMArena Search | 1227 | — |
Reasoning Muse Spark 1.2 leads
ERNIE 5.1: 21.9 (#211), Muse Spark 1.2: 51.3 (#34)
| Benchmark | ERNIE 5.1 | Muse Spark 1.2 |
|---|---|---|
| NYT Connections (extended) | 23.4% | 79.2% |
| LMArena Hard Prompts | 1481 | 1486 |
| SimpleBench | — | 74.5% |
| CritPt | — | 17.7% |
| DTBench | — | 94.7% |
| LMCA | — | 48.4% |
| Epoch Capabilities Index | — | 154.87 |
Math Muse Spark 1.2 leads
ERNIE 5.1: 40.3 (#92), Muse Spark 1.2: 46.4 (#70)
| Benchmark | ERNIE 5.1 | Muse Spark 1.2 |
|---|---|---|
| LMArena Math | 1481 | 1471 |
| ProofBench | — | 43% |
Knowledge Muse Spark 1.2 leads
ERNIE 5.1: 41.9 (#102), Muse Spark 1.2: 54.1 (#53)
| Benchmark | ERNIE 5.1 | Muse Spark 1.2 |
|---|---|---|
| LMArena Expert | 1492 | 1480 |
| SimpleQA Verified | — | 60.3% |
Multimodal Not comparable
ERNIE 5.1: —, Muse Spark 1.2: 43.4 (#25)
| Benchmark | ERNIE 5.1 | Muse Spark 1.2 |
|---|---|---|
| LMArena Vision | — | 1305 |
Multilingual Muse Spark 1.2 leads
ERNIE 5.1: 55.5 (#29), Muse Spark 1.2: 57.1 (#11)
| Benchmark | ERNIE 5.1 | Muse Spark 1.2 |
|---|---|---|
| LMArena Non-English | 1454 | 1478 |
| LMArena Chinese | 1508 | 1511 |
| LMArena French | 1488 | 1513 |
| LMArena Russian | 1459 | 1487 |
| LMArena Spanish | 1473 | 1498 |
| LMArena German | 1470 | — |
| LMArena Japanese | 1422 | — |
| LMArena Korean | 1427 | — |
Instruction Following Too close to call
ERNIE 5.1: 76.7 (#37), Muse Spark 1.2: 76.7 (#36)
| Benchmark | ERNIE 5.1 | Muse Spark 1.2 |
|---|---|---|
| LMArena Instruction Following | 1460 | 1461 |
Long Context Too close to call
ERNIE 5.1: 44.7 (#59), Muse Spark 1.2: 45.2 (#48)
| Benchmark | ERNIE 5.1 | Muse Spark 1.2 |
|---|---|---|
| LMArena Longer Query | 1462 | 1475 |
Writing & Preference Muse Spark 1.2 leads
ERNIE 5.1: 65.1 (#52), Muse Spark 1.2: 72.3 (#14)
| Benchmark | ERNIE 5.1 | Muse Spark 1.2 |
|---|---|---|
| LMArena Text | 1468 | 1482 |
| LMArena Creative Writing | 1441 | 1449 |
| LMArena Multi-Turn | 1471 | 1494 |
| EQ-Bench Creative Writing | — | 1840 |
Frequently asked questions
Is ERNIE 5.1 better than Muse Spark 1.2?
Muse Spark 1.2 is the stronger model overall, scoring 50.3 to 43.8 on the Noometry Index.
Is ERNIE 5.1 or Muse Spark 1.2 better for coding?
Muse Spark 1.2 scores higher on coding benchmarks: 49.2 versus 44.0 in the Noometry coding category.
How many benchmarks do ERNIE 5.1 and Muse Spark 1.2 share?
15 benchmarks have published results for both models. ERNIE 5.1 has 19 scored results on Noometry and Muse Spark 1.2 has 31.