Model comparison
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.
Last verified . 5 shared benchmarks.
Allen Institute for AI (Ai2)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.
Side by side
| Kimi K2.5 Instant | Molmo 2 8b | |
|---|---|---|
| Provider | Moonshot AI | Allen Institute for AI (Ai2) |
| Noometry Index | 42.9 | 38.7 |
| Released | — | — |
| Weights | Open | Open |
| Context window | — | — |
| Max output | — | — |
| Input $ / M tokens | — | — |
| Output $ / M tokens | — | — |
| Results tracked | 18 | 5 |
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Category by category
Coding Not comparable
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 leads
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 Not comparable
Kimi K2.5 Instant: 36.6 (#105), Molmo 2 8b: —
| Benchmark | Kimi K2.5 Instant | Molmo 2 8b |
|---|---|---|
| LMArena Math | 1443 | — |
Knowledge Not comparable
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 leads
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 leads
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 leads
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 Not comparable
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 leads
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 | — |
Frequently asked questions
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.