Model comparison
Qwen1.5-72B vs Step 5 Preview
Step 5 Preview is the stronger model overall, scoring 47.9 to 30.8 on the Noometry Index.
Last verified . 13 shared benchmarks.
Alibaba (Qwen)
StepFunSummary
- They share 13 benchmarks with published results for both. Qwen1.5-72B scores higher in 0 categories and Step 5 Preview in 8 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Step 5 Preview leads 41.2 to 11.5.
- Qwen1.5-72B has downloadable open weights; the other is API-only.
Side by side
| Qwen1.5-72B | Step 5 Preview | |
|---|---|---|
| Provider | Alibaba (Qwen) | StepFun |
| Noometry Index | 30.8 | 47.9 |
| Released | 2024-02-04 | 2026-09-16 |
| Weights | Open | Proprietary |
| Context window | — | 1.02M |
| Max output | — | 66K |
| Input $ / M tokens | — | $1 |
| Output $ / M tokens | — | $2.70 |
| Results tracked | 22 | 18 |
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Category by category
Coding Step 5 Preview leads
Qwen1.5-72B: 31.9 (#277), Step 5 Preview: 51.8 (#36)
| Benchmark | Qwen1.5-72B | Step 5 Preview |
|---|---|---|
| LMArena Coding | 1165 | 1480 |
| LMArena WebDev | — | 1564 |
| SciCode | — | 58.9% |
| BigCodeBench Instruct | 33.2% | — |
| BigCodeBench Complete | 40.3% | — |
| HumanEval+ | 59.1% | — |
| MBPP+ | 61.6% | — |
Reasoning Step 5 Preview leads
Qwen1.5-72B: 22.2 (#203), Step 5 Preview: 40.0 (#57)
| Benchmark | Qwen1.5-72B | Step 5 Preview |
|---|---|---|
| LMArena Hard Prompts | 1148 | 1465 |
| CritPt | — | 20.9% |
Math Step 5 Preview leads
Qwen1.5-72B: 33.2 (#205), Step 5 Preview: 46.1 (#72)
| Benchmark | Qwen1.5-72B | Step 5 Preview |
|---|---|---|
| LMArena Math | 1164 | 1470 |
| ProofBench | — | 42% |
Knowledge Step 5 Preview leads
Qwen1.5-72B: 11.5 (#300), Step 5 Preview: 41.2 (#112)
| Benchmark | Qwen1.5-72B | Step 5 Preview |
|---|---|---|
| LMArena Expert | 1136 | 1470 |
| GPQA Diamond | 28.8% | — |
Multimodal Not comparable
Qwen1.5-72B: —, Step 5 Preview: 41.0 (#41)
| Benchmark | Qwen1.5-72B | Step 5 Preview |
|---|---|---|
| LMArena Vision | — | 1267 |
Multilingual Step 5 Preview leads
Qwen1.5-72B: 33.2 (#253), Step 5 Preview: 53.8 (#54)
| Benchmark | Qwen1.5-72B | Step 5 Preview |
|---|---|---|
| LMArena Non-English | 1135 | 1432 |
| LMArena Chinese | 1186 | 1519 |
| LMArena Russian | 1104 | 1436 |
| LMArena Spanish | 1110 | 1439 |
| LMArena French | 1159 | — |
| LMArena German | 1084 | — |
| LMArena Japanese | 1061 | — |
| LMArena Korean | 1050 | — |
Instruction Following Step 5 Preview leads
Qwen1.5-72B: 59.3 (#256), Step 5 Preview: 76.0 (#50)
| Benchmark | Qwen1.5-72B | Step 5 Preview |
|---|---|---|
| LMArena Instruction Following | 1141 | 1444 |
Long Context Step 5 Preview leads
Qwen1.5-72B: 35.1 (#243), Step 5 Preview: 44.5 (#64)
| Benchmark | Qwen1.5-72B | Step 5 Preview |
|---|---|---|
| LMArena Longer Query | 1157 | 1455 |
Writing & Preference Step 5 Preview leads
Qwen1.5-72B: 37.3 (#258), Step 5 Preview: 62.8 (#71)
| Benchmark | Qwen1.5-72B | Step 5 Preview |
|---|---|---|
| LMArena Text | 1166 | 1442 |
| LMArena Creative Writing | 1137 | 1410 |
| LMArena Multi-Turn | 1160 | 1447 |
Frequently asked questions
Is Qwen1.5-72B better than Step 5 Preview?
Step 5 Preview is the stronger model overall, scoring 47.9 to 30.8 on the Noometry Index.
Is Qwen1.5-72B or Step 5 Preview better for coding?
Step 5 Preview scores higher on coding benchmarks: 51.8 versus 31.9 in the Noometry coding category.
How many benchmarks do Qwen1.5-72B and Step 5 Preview share?
13 benchmarks have published results for both models. Qwen1.5-72B has 22 scored results on Noometry and Step 5 Preview has 18.