# OLMo 2 Furious 13B vs Step 5 Preview

> Step 5 Preview is the stronger model overall, scoring 43.8 to 29.2 on the Noometry Index.

- Canonical page: https://noometry.com/compare/olmo-2-furious-13b-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 14.8.
- OLMo 2 Furious 13B has downloadable open weights; the other is API-only.

## Snapshot

| | OLMo 2 Furious 13B | Step 5 Preview |
|---|---|---|
| Provider | Allen Institute for AI (Ai2) | StepFun |
| Noometry Index | 29.2 | 43.8 |
| Rank | 301 | 78 |
| Context | — | 1.02M |
| Input $/M | — | $1 |
| Output $/M | — | $2.70 |
| Weights | Open | Proprietary |

## Coding

- OLMo 2 Furious 13B: 28.1 (#309)
- Step 5 Preview: 50.6 (#40)

| Benchmark | OLMo 2 Furious 13B | Step 5 Preview |
|---|---|---|
| LMArena WebDev | — | 1569 |
| SciCode | — | 58.9% |
| LiveBench Coding | 10.4% | — |

## Reasoning

- OLMo 2 Furious 13B: 14.8 (#312)
- Step 5 Preview: 38.0 (#58)

| Benchmark | OLMo 2 Furious 13B | Step 5 Preview |
|---|---|---|
| CritPt | — | 20.9% |
| LiveBench Reasoning | 16.3% | — |
| LiveBench Data Analysis | 20.6% | — |
| LiveBench | 22.1% | — |

## Math

- OLMo 2 Furious 13B: 21.3 (#270)
- Step 5 Preview: —

| Benchmark | OLMo 2 Furious 13B | Step 5 Preview |
|---|---|---|
| Omni-MATH | 15.6% | — |
| LiveBench Math | 13.6% | — |

## Knowledge

- OLMo 2 Furious 13B: 18.0 (#278)
- Step 5 Preview: —

| Benchmark | OLMo 2 Furious 13B | Step 5 Preview |
|---|---|---|
| MMLU-Pro | 31% | — |
| GPQA (HELM) | 31.6% | — |

## Instruction Following

- OLMo 2 Furious 13B: 61.1 (#243)
- Step 5 Preview: —

| Benchmark | OLMo 2 Furious 13B | Step 5 Preview |
|---|---|---|
| LiveBench Instruction Following | 60.6% | — |
| IFEval | 73% | — |

## Writing & Preference

- OLMo 2 Furious 13B: 43.0 (#226)
- Step 5 Preview: —

| Benchmark | OLMo 2 Furious 13B | Step 5 Preview |
|---|---|---|
| WildBench | 68.9% | — |
| LiveBench Language | 11.2% | — |

## FAQ

### Is OLMo 2 Furious 13B better than Step 5 Preview?

Step 5 Preview is the stronger model overall, scoring 43.8 to 29.2 on the Noometry Index.

### Is OLMo 2 Furious 13B or Step 5 Preview better for coding?

Step 5 Preview scores higher on coding benchmarks: 50.6 versus 28.1 in the Noometry coding category.

### How many benchmarks do OLMo 2 Furious 13B and Step 5 Preview share?

0 benchmarks have published results for both models. OLMo 2 Furious 13B has 12 scored results on Noometry and Step 5 Preview has 3.