Model comparison
Olmo 3 32b Think vs Step 5 Preview
Step 5 Preview is the stronger model overall, scoring 47.9 to 38.7 on the Noometry Index.
Last verified . 12 shared benchmarks.
Allen Institute for AI (Ai2)
StepFunSummary
- They share 12 benchmarks with published results for both. Olmo 3 32b Think scores higher in 0 categories and Step 5 Preview in 8 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Step 5 Preview leads 40.0 to 25.9.
- Olmo 3 32b Think has downloadable open weights; the other is API-only.
Side by side
| Olmo 3 32b Think | Step 5 Preview | |
|---|---|---|
| Provider | Allen Institute for AI (Ai2) | StepFun |
| Noometry Index | 38.7 | 47.9 |
| Released | — | 2026-09-16 |
| Weights | Open | Proprietary |
| Context window | — | 1.02M |
| Max output | — | 66K |
| Input $ / M tokens | — | $1 |
| Output $ / M tokens | — | $2.70 |
| Results tracked | 14 | 18 |
Sponsored placements are available on pages like this one. Advertise on Noometry
Category by category
Coding Step 5 Preview leads
Olmo 3 32b Think: 38.6 (#172), Step 5 Preview: 51.8 (#36)
| Benchmark | Olmo 3 32b Think | Step 5 Preview |
|---|---|---|
| LMArena Coding | 1319 | 1480 |
| LMArena WebDev | — | 1564 |
| SciCode | — | 58.9% |
Reasoning Step 5 Preview leads
Olmo 3 32b Think: 25.9 (#140), Step 5 Preview: 40.0 (#57)
| Benchmark | Olmo 3 32b Think | Step 5 Preview |
|---|---|---|
| LMArena Hard Prompts | 1302 | 1465 |
| CritPt | — | 20.9% |
Math Step 5 Preview leads
Olmo 3 32b Think: 36.5 (#165), Step 5 Preview: 46.1 (#72)
| Benchmark | Olmo 3 32b Think | Step 5 Preview |
|---|---|---|
| LMArena Math | 1316 | 1470 |
| ProofBench | — | 42% |
Knowledge Step 5 Preview leads
Olmo 3 32b Think: 35.0 (#190), Step 5 Preview: 41.2 (#112)
| Benchmark | Olmo 3 32b Think | Step 5 Preview |
|---|---|---|
| LMArena Expert | 1273 | 1470 |
Multimodal Not comparable
Olmo 3 32b Think: —, Step 5 Preview: 41.0 (#41)
| Benchmark | Olmo 3 32b Think | Step 5 Preview |
|---|---|---|
| LMArena Vision | — | 1267 |
Multilingual Step 5 Preview leads
Olmo 3 32b Think: 41.2 (#210), Step 5 Preview: 53.8 (#54)
| Benchmark | Olmo 3 32b Think | Step 5 Preview |
|---|---|---|
| LMArena Non-English | 1255 | 1432 |
| LMArena Chinese | 1300 | 1519 |
| LMArena Russian | 1254 | 1436 |
| LMArena French | 1291 | — |
| LMArena German | 1290 | — |
| LMArena Spanish | — | 1439 |
Instruction Following Step 5 Preview leads
Olmo 3 32b Think: 67.2 (#198), Step 5 Preview: 76.0 (#50)
| Benchmark | Olmo 3 32b Think | Step 5 Preview |
|---|---|---|
| LMArena Instruction Following | 1275 | 1444 |
Long Context Step 5 Preview leads
Olmo 3 32b Think: 39.4 (#182), Step 5 Preview: 44.5 (#64)
| Benchmark | Olmo 3 32b Think | Step 5 Preview |
|---|---|---|
| LMArena Longer Query | 1296 | 1455 |
Writing & Preference Step 5 Preview leads
Olmo 3 32b Think: 49.1 (#193), Step 5 Preview: 62.8 (#71)
| Benchmark | Olmo 3 32b Think | Step 5 Preview |
|---|---|---|
| LMArena Text | 1300 | 1442 |
| LMArena Creative Writing | 1256 | 1410 |
| LMArena Multi-Turn | 1290 | 1447 |
Frequently asked questions
Is Olmo 3 32b Think better than Step 5 Preview?
Step 5 Preview is the stronger model overall, scoring 47.9 to 38.7 on the Noometry Index.
Is Olmo 3 32b Think or Step 5 Preview better for coding?
Step 5 Preview scores higher on coding benchmarks: 51.8 versus 38.6 in the Noometry coding category.
How many benchmarks do Olmo 3 32b Think and Step 5 Preview share?
12 benchmarks have published results for both models. Olmo 3 32b Think has 14 scored results on Noometry and Step 5 Preview has 18.