# Kimi K2.5 Instant vs Molmo 2 8b

> Kimi K2.5 Instant is the stronger model overall, scoring 42.9 to 38.7 on the Noometry Index.

- Canonical page: https://noometry.com/compare/kimi-k2-5-instant-vs-molmo-2-8b
- Last updated: 2026-10-10
- Shared benchmarks: 5

## Summary

- They share 5 benchmarks with published results for both. Kimi K2.5 Instant scores higher in 5 categories and Molmo 2 8b in 0 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Kimi K2.5 Instant leads 60.8 to 49.5.

## Snapshot

| | Kimi K2.5 Instant | Molmo 2 8b |
|---|---|---|
| Provider | Moonshot AI | Allen Institute for AI (Ai2) |
| Noometry Index | 42.9 | 38.7 |
| Rank | 92 | 170 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Open | Open |

## Coding

- Kimi K2.5 Instant: 42.3 (#95)
- Molmo 2 8b: —

| Benchmark | Kimi K2.5 Instant | Molmo 2 8b |
|---|---|---|
| LMArena WebDev | 1404 | — |
| LMArena Coding | 1483 | — |

## Reasoning

- Kimi K2.5 Instant: 28.5 (#88)
- Molmo 2 8b: 24.5 (#146)

| Benchmark | Kimi K2.5 Instant | Molmo 2 8b |
|---|---|---|
| LMArena Hard Prompts | 1443 | 1288 |

## Math

- Kimi K2.5 Instant: 36.6 (#105)
- Molmo 2 8b: —

| Benchmark | Kimi K2.5 Instant | Molmo 2 8b |
|---|---|---|
| LMArena Math | 1443 | — |

## Knowledge

- Kimi K2.5 Instant: 39.5 (#121)
- Molmo 2 8b: —

| Benchmark | Kimi K2.5 Instant | Molmo 2 8b |
|---|---|---|
| LMArena Expert | 1438 | — |

## Multimodal

- Kimi K2.5 Instant: 39.5 (#47)
- Molmo 2 8b: 29.5 (#106)

| Benchmark | Kimi K2.5 Instant | Molmo 2 8b |
|---|---|---|
| LMArena Vision | 1254 | 1081 |

## Multilingual

- Kimi K2.5 Instant: 52.2 (#89)
- Molmo 2 8b: 42.8 (#186)

| Benchmark | Kimi K2.5 Instant | Molmo 2 8b |
|---|---|---|
| LMArena Non-English | 1406 | 1275 |
| LMArena Chinese | 1450 | — |
| LMArena French | 1403 | — |
| LMArena German | 1413 | — |
| LMArena Korean | 1378 | — |
| LMArena Russian | 1404 | — |
| LMArena Spanish | 1448 | — |

## Instruction Following

- Kimi K2.5 Instant: 75.5 (#61)
- Molmo 2 8b: 67.2 (#196)

| Benchmark | Kimi K2.5 Instant | Molmo 2 8b |
|---|---|---|
| LMArena Instruction Following | 1430 | 1270 |

## Long Context

- Kimi K2.5 Instant: 43.8 (#82)
- Molmo 2 8b: —

| Benchmark | Kimi K2.5 Instant | Molmo 2 8b |
|---|---|---|
| LMArena Longer Query | 1435 | — |

## Writing & Preference

- Kimi K2.5 Instant: 60.8 (#91)
- Molmo 2 8b: 49.5 (#187)

| Benchmark | Kimi K2.5 Instant | Molmo 2 8b |
|---|---|---|
| LMArena Text | 1420 | 1288 |
| LMArena Creative Writing | 1379 | — |
| LMArena Multi-Turn | 1427 | — |

## FAQ

### Is Kimi K2.5 Instant better than Molmo 2 8b?

Kimi K2.5 Instant is the stronger model overall, scoring 42.9 to 38.7 on the Noometry Index.

### How many benchmarks do Kimi K2.5 Instant and Molmo 2 8b share?

5 benchmarks have published results for both models. Kimi K2.5 Instant has 18 scored results on Noometry and Molmo 2 8b has 5.