Model comparison
Amazon Nova Experimental Chat 12 10 vs Kimi K2.5 Instant
Amazon Nova Experimental Chat 12 10 and Kimi K2.5 Instant score almost the same on the Noometry Index (42.9 vs 43.6), so choose on price, context window or the category you care about most.
Last verified . 12 shared benchmarks.
Summary
- They share 12 benchmarks with published results for both. Amazon Nova Experimental Chat 12 10 scores higher in 0 categories and Kimi K2.5 Instant in 8 categories; 4 gaps are clear of the uncertainty.
- Kimi K2.5 Instant has downloadable open weights; the other is API-only.
Side by side
| Amazon Nova Experimental Chat 12 10 | Kimi K2.5 Instant | |
|---|---|---|
| Provider | Amazon | Moonshot AI |
| Noometry Index | 42.9 | 43.6 |
| Released | — | — |
| Weights | Proprietary | Open |
| Context window | — | — |
| Max output | — | — |
| Input $ / M tokens | — | — |
| Output $ / M tokens | — | — |
| Results tracked | 12 | 18 |
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Category by category
Coding Too close to call
Amazon Nova Experimental Chat 12 10: 42.2 (#110), Kimi K2.5 Instant: 42.6 (#97)
| Benchmark | Amazon Nova Experimental Chat 12 10 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Coding | 1430 | 1484 |
| LMArena WebDev | — | 1404 |
Reasoning Too close to call
Amazon Nova Experimental Chat 12 10: 29.3 (#94), Kimi K2.5 Instant: 29.7 (#90)
| Benchmark | Amazon Nova Experimental Chat 12 10 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Hard Prompts | 1427 | 1443 |
Math Too close to call
Amazon Nova Experimental Chat 12 10: 38.9 (#124), Kimi K2.5 Instant: 39.4 (#105)
| Benchmark | Amazon Nova Experimental Chat 12 10 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Math | 1419 | 1442 |
Knowledge Kimi K2.5 Instant leads
Amazon Nova Experimental Chat 12 10: 39.2 (#136), Kimi K2.5 Instant: 40.2 (#123)
| Benchmark | Amazon Nova Experimental Chat 12 10 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Expert | 1408 | 1440 |
Multimodal Not comparable
Amazon Nova Experimental Chat 12 10: —, Kimi K2.5 Instant: 40.2 (#50)
| Benchmark | Amazon Nova Experimental Chat 12 10 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Vision | — | 1254 |
Multilingual Too close to call
Amazon Nova Experimental Chat 12 10: 51.4 (#108), Kimi K2.5 Instant: 52.0 (#94)
| Benchmark | Amazon Nova Experimental Chat 12 10 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Non-English | 1398 | 1406 |
| LMArena Chinese | 1440 | 1449 |
| LMArena Russian | 1395 | 1404 |
| LMArena French | — | 1403 |
| LMArena German | — | 1413 |
| LMArena Korean | — | 1378 |
| LMArena Spanish | — | 1447 |
Instruction Following Kimi K2.5 Instant leads
Amazon Nova Experimental Chat 12 10: 73.2 (#123), Kimi K2.5 Instant: 75.3 (#65)
| Benchmark | Amazon Nova Experimental Chat 12 10 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Instruction Following | 1387 | 1430 |
Long Context Kimi K2.5 Instant leads
Amazon Nova Experimental Chat 12 10: 42.4 (#125), Kimi K2.5 Instant: 43.9 (#83)
| Benchmark | Amazon Nova Experimental Chat 12 10 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Longer Query | 1391 | 1435 |
Writing & Preference Kimi K2.5 Instant leads
Amazon Nova Experimental Chat 12 10: 59.5 (#110), Kimi K2.5 Instant: 60.6 (#95)
| Benchmark | Amazon Nova Experimental Chat 12 10 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Text | 1420 | 1420 |
| LMArena Creative Writing | 1350 | 1381 |
| LMArena Multi-Turn | 1409 | 1427 |
Frequently asked questions
Is Amazon Nova Experimental Chat 12 10 better than Kimi K2.5 Instant?
Amazon Nova Experimental Chat 12 10 and Kimi K2.5 Instant score almost the same on the Noometry Index (42.9 vs 43.6), so choose on price, context window or the category you care about most.
Is Amazon Nova Experimental Chat 12 10 or Kimi K2.5 Instant better for coding?
They score almost the same on coding (42.2 vs 42.6); test both on your own repository before choosing.
How many benchmarks do Amazon Nova Experimental Chat 12 10 and Kimi K2.5 Instant share?
12 benchmarks have published results for both models. Amazon Nova Experimental Chat 12 10 has 12 scored results on Noometry and Kimi K2.5 Instant has 18.