Model comparison
Kimi K2.5 Instant vs Nova 2.0 Pro Preview
Kimi K2.5 Instant is the stronger model overall, scoring 43.6 to 33.4 on the Noometry Index.
Last verified . 0 shared benchmarks.
Summary
- The widest gap is in reasoning, where Kimi K2.5 Instant leads 29.7 to 22.4.
- Kimi K2.5 Instant has downloadable open weights; the other is API-only.
Side by side
| Kimi K2.5 Instant | Nova 2.0 Pro Preview | |
|---|---|---|
| Provider | Moonshot AI | Amazon |
| Noometry Index | 43.6 | 33.4 |
| Released | — | 2025-12-02 |
| Weights | Open | Proprietary |
| Context window | — | — |
| Max output | — | — |
| Input $ / M tokens | — | — |
| Output $ / M tokens | — | — |
| Results tracked | 18 | 3 |
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Category by category
Coding Kimi K2.5 Instant leads
Kimi K2.5 Instant: 42.6 (#97), Nova 2.0 Pro Preview: 40.8 (#133)
| Benchmark | Kimi K2.5 Instant | Nova 2.0 Pro Preview |
|---|---|---|
| LMArena WebDev | 1404 | — |
| SciCode | — | 42.7% |
| LMArena Coding | 1484 | — |
Agentic & Tool Use Not comparable
Kimi K2.5 Instant: —, Nova 2.0 Pro Preview: 21.9 (#136)
| Benchmark | Kimi K2.5 Instant | Nova 2.0 Pro Preview |
|---|---|---|
| GDP.pdf | — | 2% |
Reasoning Kimi K2.5 Instant leads
Kimi K2.5 Instant: 29.7 (#90), Nova 2.0 Pro Preview: 22.4 (#194)
| Benchmark | Kimi K2.5 Instant | Nova 2.0 Pro Preview |
|---|---|---|
| CritPt | — | 0% |
| LMArena Hard Prompts | 1443 | — |
Math Not comparable
Kimi K2.5 Instant: 39.4 (#105), Nova 2.0 Pro Preview: —
| Benchmark | Kimi K2.5 Instant | Nova 2.0 Pro Preview |
|---|---|---|
| LMArena Math | 1442 | — |
Knowledge Not comparable
Kimi K2.5 Instant: 40.2 (#123), Nova 2.0 Pro Preview: —
| Benchmark | Kimi K2.5 Instant | Nova 2.0 Pro Preview |
|---|---|---|
| LMArena Expert | 1440 | — |
Multimodal Not comparable
Kimi K2.5 Instant: 40.2 (#50), Nova 2.0 Pro Preview: —
| Benchmark | Kimi K2.5 Instant | Nova 2.0 Pro Preview |
|---|---|---|
| LMArena Vision | 1254 | — |
Multilingual Not comparable
Kimi K2.5 Instant: 52.0 (#94), Nova 2.0 Pro Preview: —
| Benchmark | Kimi K2.5 Instant | Nova 2.0 Pro Preview |
|---|---|---|
| LMArena Non-English | 1406 | — |
| LMArena Chinese | 1449 | — |
| LMArena French | 1403 | — |
| LMArena German | 1413 | — |
| LMArena Korean | 1378 | — |
| LMArena Russian | 1404 | — |
| LMArena Spanish | 1447 | — |
Instruction Following Not comparable
Kimi K2.5 Instant: 75.3 (#65), Nova 2.0 Pro Preview: —
| Benchmark | Kimi K2.5 Instant | Nova 2.0 Pro Preview |
|---|---|---|
| LMArena Instruction Following | 1430 | — |
Long Context Not comparable
Kimi K2.5 Instant: 43.9 (#83), Nova 2.0 Pro Preview: —
| Benchmark | Kimi K2.5 Instant | Nova 2.0 Pro Preview |
|---|---|---|
| LMArena Longer Query | 1435 | — |
Writing & Preference Not comparable
Kimi K2.5 Instant: 60.6 (#95), Nova 2.0 Pro Preview: —
| Benchmark | Kimi K2.5 Instant | Nova 2.0 Pro Preview |
|---|---|---|
| LMArena Text | 1420 | — |
| LMArena Creative Writing | 1381 | — |
| LMArena Multi-Turn | 1427 | — |
Frequently asked questions
Is Kimi K2.5 Instant better than Nova 2.0 Pro Preview?
Kimi K2.5 Instant is the stronger model overall, scoring 43.6 to 33.4 on the Noometry Index.
Is Kimi K2.5 Instant or Nova 2.0 Pro Preview better for coding?
Kimi K2.5 Instant scores higher on coding benchmarks: 42.6 versus 40.8 in the Noometry coding category.
How many benchmarks do Kimi K2.5 Instant and Nova 2.0 Pro Preview share?
0 benchmarks have published results for both models. Kimi K2.5 Instant has 18 scored results on Noometry and Nova 2.0 Pro Preview has 3.