# Molmo 2 8b vs Step 2 16k Exp 202412

> Molmo 2 8b and Step 2 16k Exp 202412 score almost the same on the Noometry Index (39.1 vs 39.2), so choose on price, context window or the category you care about most.

- Canonical page: https://noometry.com/compare/molmo-2-8b-vs-step-2-16k-exp-202412
- Last updated: 2026-10-10
- Shared benchmarks: 4

## Summary

- They share 4 benchmarks with published results for both. Molmo 2 8b scores higher in 0 categories and Step 2 16k Exp 202412 in 4 categories; 2 gaps are clear of the uncertainty.
- Molmo 2 8b has downloadable open weights; the other is API-only.

## Snapshot

| | Molmo 2 8b | Step 2 16k Exp 202412 |
|---|---|---|
| Provider | Allen Institute for AI (Ai2) | StepFun |
| Noometry Index | 39.1 | 39.2 |
| Rank | 174 | 171 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Open | Proprietary |

## Coding

- Molmo 2 8b: —
- Step 2 16k Exp 202412: 38.5 (#174)

| Benchmark | Molmo 2 8b | Step 2 16k Exp 202412 |
|---|---|---|
| LMArena Coding | — | 1316 |

## Reasoning

- Molmo 2 8b: 25.6 (#146)
- Step 2 16k Exp 202412: 25.9 (#142)

| Benchmark | Molmo 2 8b | Step 2 16k Exp 202412 |
|---|---|---|
| LMArena Hard Prompts | 1287 | 1299 |

## Math

- Molmo 2 8b: —
- Step 2 16k Exp 202412: 36.3 (#169)

| Benchmark | Molmo 2 8b | Step 2 16k Exp 202412 |
|---|---|---|
| LMArena Math | — | 1304 |

## Knowledge

- Molmo 2 8b: —
- Step 2 16k Exp 202412: 35.2 (#187)

| Benchmark | Molmo 2 8b | Step 2 16k Exp 202412 |
|---|---|---|
| LMArena Expert | — | 1279 |

## Multimodal

- Molmo 2 8b: 30.2 (#112)
- Step 2 16k Exp 202412: —

| Benchmark | Molmo 2 8b | Step 2 16k Exp 202412 |
|---|---|---|
| LMArena Vision | 1081 | — |

## Multilingual

- Molmo 2 8b: 42.7 (#190)
- Step 2 16k Exp 202412: 43.7 (#181)

| Benchmark | Molmo 2 8b | Step 2 16k Exp 202412 |
|---|---|---|
| LMArena Non-English | 1276 | 1290 |
| LMArena Chinese | — | 1331 |
| LMArena Russian | — | 1324 |

## Instruction Following

- Molmo 2 8b: 67.0 (#201)
- Step 2 16k Exp 202412: 67.9 (#192)

| Benchmark | Molmo 2 8b | Step 2 16k Exp 202412 |
|---|---|---|
| LMArena Instruction Following | 1270 | 1287 |

## Long Context

- Molmo 2 8b: —
- Step 2 16k Exp 202412: 39.7 (#170)

| Benchmark | Molmo 2 8b | Step 2 16k Exp 202412 |
|---|---|---|
| LMArena Longer Query | — | 1307 |

## Writing & Preference

- Molmo 2 8b: 49.4 (#191)
- Step 2 16k Exp 202412: 52.3 (#173)

| Benchmark | Molmo 2 8b | Step 2 16k Exp 202412 |
|---|---|---|
| LMArena Text | 1288 | 1321 |
| LMArena Creative Writing | — | 1328 |
| LMArena Multi-Turn | — | 1292 |

## FAQ

### Is Molmo 2 8b better than Step 2 16k Exp 202412?

Molmo 2 8b and Step 2 16k Exp 202412 score almost the same on the Noometry Index (39.1 vs 39.2), so choose on price, context window or the category you care about most.

### How many benchmarks do Molmo 2 8b and Step 2 16k Exp 202412 share?

4 benchmarks have published results for both models. Molmo 2 8b has 5 scored results on Noometry and Step 2 16k Exp 202412 has 12.