Model comparison
ERNIE 5.1 vs Step 5 Preview
ERNIE 5.1 and Step 5 Preview score almost the same on the Noometry Index (43.1 vs 43.8), so choose on price, context window or the category you care about most.
Last verified . 0 shared benchmarks.
Baidu
StepFunSummary
- The widest gap is in reasoning, where Step 5 Preview leads 38.0 to 20.9.
Side by side
| ERNIE 5.1 | Step 5 Preview | |
|---|---|---|
| Provider | Baidu | StepFun |
| Noometry Index | 43.1 | 43.8 |
| Released | — | 2026-09-16 |
| Weights | Proprietary | Proprietary |
| Context window | — | 1.02M |
| Max output | — | 66K |
| Input $ / M tokens | — | $1 |
| Output $ / M tokens | — | $2.70 |
| Results tracked | 19 | 3 |
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Category by category
Coding Step 5 Preview leads
ERNIE 5.1: 43.4 (#78), Step 5 Preview: 50.6 (#40)
| Benchmark | ERNIE 5.1 | Step 5 Preview |
|---|---|---|
| LMArena WebDev | — | 1569 |
| SciCode | — | 58.9% |
| LMArena Coding | 1488 | — |
Agentic & Tool Use Not comparable
ERNIE 5.1: —, Step 5 Preview: —
| Benchmark | ERNIE 5.1 | Step 5 Preview |
|---|---|---|
| LMArena Search | 1227 | — |
Reasoning Step 5 Preview leads
ERNIE 5.1: 20.9 (#209), Step 5 Preview: 38.0 (#58)
| Benchmark | ERNIE 5.1 | Step 5 Preview |
|---|---|---|
| NYT Connections (extended) | 23.4% | — |
| CritPt | — | 20.9% |
| LMArena Hard Prompts | 1481 | — |
Math Not comparable
ERNIE 5.1: 37.5 (#96), Step 5 Preview: —
| Benchmark | ERNIE 5.1 | Step 5 Preview |
|---|---|---|
| LMArena Math | 1481 | — |
Knowledge Not comparable
ERNIE 5.1: 41.2 (#103), Step 5 Preview: —
| Benchmark | ERNIE 5.1 | Step 5 Preview |
|---|---|---|
| LMArena Expert | 1491 | — |
Multilingual Not comparable
ERNIE 5.1: 55.7 (#28), Step 5 Preview: —
| Benchmark | ERNIE 5.1 | Step 5 Preview |
|---|---|---|
| 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), Step 5 Preview: —
| Benchmark | ERNIE 5.1 | Step 5 Preview |
|---|---|---|
| LMArena Instruction Following | 1460 | — |
Long Context Not comparable
ERNIE 5.1: 44.7 (#56), Step 5 Preview: —
| Benchmark | ERNIE 5.1 | Step 5 Preview |
|---|---|---|
| LMArena Longer Query | 1462 | — |
Writing & Preference Not comparable
ERNIE 5.1: 65.3 (#50), Step 5 Preview: —
| Benchmark | ERNIE 5.1 | Step 5 Preview |
|---|---|---|
| LMArena Text | 1468 | — |
| LMArena Creative Writing | 1440 | — |
| LMArena Multi-Turn | 1471 | — |
Frequently asked questions
Is ERNIE 5.1 better than Step 5 Preview?
ERNIE 5.1 and Step 5 Preview score almost the same on the Noometry Index (43.1 vs 43.8), so choose on price, context window or the category you care about most.
Is ERNIE 5.1 or Step 5 Preview better for coding?
Step 5 Preview scores higher on coding benchmarks: 50.6 versus 43.4 in the Noometry coding category.
How many benchmarks do ERNIE 5.1 and Step 5 Preview share?
0 benchmarks have published results for both models. ERNIE 5.1 has 19 scored results on Noometry and Step 5 Preview has 3.