# Olmo 3.1 32b Think vs Step 5 Preview

> Step 5 Preview is the stronger model overall, scoring 43.8 to 37.3 on the Noometry Index.

- Canonical page: https://noometry.com/compare/olmo-3-1-32b-think-vs-step-5-preview
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in reasoning, where Step 5 Preview leads 38.0 to 24.1.
- Olmo 3.1 32b Think has downloadable open weights; the other is API-only.

## Snapshot

| | Olmo 3.1 32b Think | Step 5 Preview |
|---|---|---|
| Provider | Allen Institute for AI (Ai2) | StepFun |
| Noometry Index | 37.3 | 43.8 |
| Rank | 191 | 78 |
| Context | — | 1.02M |
| Input $/M | — | $1 |
| Output $/M | — | $2.70 |
| Weights | Open | Proprietary |

## Coding

- Olmo 3.1 32b Think: 37.1 (#186)
- Step 5 Preview: 50.6 (#40)

| Benchmark | Olmo 3.1 32b Think | Step 5 Preview |
|---|---|---|
| LMArena WebDev | — | 1569 |
| SciCode | — | 58.9% |
| LMArena Coding | 1292 | — |

## Reasoning

- Olmo 3.1 32b Think: 24.1 (#151)
- Step 5 Preview: 38.0 (#58)

| Benchmark | Olmo 3.1 32b Think | Step 5 Preview |
|---|---|---|
| CritPt | — | 20.9% |
| LMArena Hard Prompts | 1272 | — |

## Math

- Olmo 3.1 32b Think: 33.6 (#170)
- Step 5 Preview: —

| Benchmark | Olmo 3.1 32b Think | Step 5 Preview |
|---|---|---|
| LMArena Math | 1305 | — |

## Knowledge

- Olmo 3.1 32b Think: 35.0 (#178)
- Step 5 Preview: —

| Benchmark | Olmo 3.1 32b Think | Step 5 Preview |
|---|---|---|
| LMArena Expert | 1294 | — |

## Multilingual

- Olmo 3.1 32b Think: 38.3 (#226)
- Step 5 Preview: —

| Benchmark | Olmo 3.1 32b Think | Step 5 Preview |
|---|---|---|
| LMArena Non-English | 1210 | — |
| LMArena Chinese | 1241 | — |
| LMArena French | 1262 | — |
| LMArena German | 1260 | — |
| LMArena Russian | 1193 | — |
| LMArena Spanish | 1288 | — |

## Instruction Following

- Olmo 3.1 32b Think: 65.8 (#213)
- Step 5 Preview: —

| Benchmark | Olmo 3.1 32b Think | Step 5 Preview |
|---|---|---|
| LMArena Instruction Following | 1246 | — |

## Long Context

- Olmo 3.1 32b Think: 38.6 (#190)
- Step 5 Preview: —

| Benchmark | Olmo 3.1 32b Think | Step 5 Preview |
|---|---|---|
| LMArena Longer Query | 1272 | — |

## Writing & Preference

- Olmo 3.1 32b Think: 46.4 (#215)
- Step 5 Preview: —

| Benchmark | Olmo 3.1 32b Think | Step 5 Preview |
|---|---|---|
| LMArena Text | 1271 | — |
| LMArena Creative Writing | 1226 | — |
| LMArena Multi-Turn | 1252 | — |

## FAQ

### Is Olmo 3.1 32b Think better than Step 5 Preview?

Step 5 Preview is the stronger model overall, scoring 43.8 to 37.3 on the Noometry Index.

### Is Olmo 3.1 32b Think or Step 5 Preview better for coding?

Step 5 Preview scores higher on coding benchmarks: 50.6 versus 37.1 in the Noometry coding category.

### How many benchmarks do Olmo 3.1 32b Think and Step 5 Preview share?

0 benchmarks have published results for both models. Olmo 3.1 32b Think has 15 scored results on Noometry and Step 5 Preview has 3.