Model comparison
Amazon Nova Experimental Chat 10 20 vs Kimi K2 Thinking Turbo
Kimi K2 Thinking Turbo is the stronger model overall, scoring 45.8 to 42.1 on the Noometry Index.
Last verified . 17 shared benchmarks.
Summary
- They share 17 benchmarks with published results for both. Amazon Nova Experimental Chat 10 20 scores higher in 1 category and Kimi K2 Thinking Turbo in 7 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Kimi K2 Thinking Turbo leads 50.9 to 38.5.
- Kimi K2 Thinking Turbo has downloadable open weights; the other is API-only.
Side by side
| Amazon Nova Experimental Chat 10 20 | Kimi K2 Thinking Turbo | |
|---|---|---|
| Provider | Amazon | Moonshot AI |
| Noometry Index | 42.1 | 45.8 |
| Released | — | 2025-11-06 |
| Weights | Proprietary | Open |
| Context window | — | — |
| Max output | — | — |
| Input $ / M tokens | — | — |
| Output $ / M tokens | — | — |
| Results tracked | 17 | 21 |
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Category by category
Coding Amazon Nova Experimental Chat 10 20 leads
Amazon Nova Experimental Chat 10 20: 41.6 (#123), Kimi K2 Thinking Turbo: 38.4 (#178)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Kimi K2 Thinking Turbo |
|---|---|---|
| LMArena Coding | 1412 | 1454 |
| LMArena WebDev | — | 1322 |
Reasoning Kimi K2 Thinking Turbo leads
Amazon Nova Experimental Chat 10 20: 28.4 (#106), Kimi K2 Thinking Turbo: 32.5 (#75)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Kimi K2 Thinking Turbo |
|---|---|---|
| LMArena Hard Prompts | 1396 | 1428 |
| Chess Puzzles | — | 20% |
Math Kimi K2 Thinking Turbo leads
Amazon Nova Experimental Chat 10 20: 39.0 (#119), Kimi K2 Thinking Turbo: 47.4 (#68)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Kimi K2 Thinking Turbo |
|---|---|---|
| LMArena Math | 1425 | 1429 |
| OTIS Mock AIME 2024-2025 | — | 83.1% |
Knowledge Kimi K2 Thinking Turbo leads
Amazon Nova Experimental Chat 10 20: 38.5 (#144), Kimi K2 Thinking Turbo: 50.9 (#69)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Kimi K2 Thinking Turbo |
|---|---|---|
| LMArena Expert | 1386 | 1439 |
| GPQA Diamond | — | 84.2% |
Multilingual Kimi K2 Thinking Turbo leads
Amazon Nova Experimental Chat 10 20: 49.5 (#131), Kimi K2 Thinking Turbo: 51.4 (#109)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Kimi K2 Thinking Turbo |
|---|---|---|
| LMArena Non-English | 1372 | 1398 |
| LMArena Chinese | 1404 | 1456 |
| LMArena French | 1425 | 1425 |
| LMArena German | 1391 | 1390 |
| LMArena Japanese | 1360 | 1357 |
| LMArena Korean | 1324 | 1330 |
| LMArena Russian | 1371 | 1391 |
| LMArena Spanish | 1382 | 1406 |
Instruction Following Kimi K2 Thinking Turbo leads
Amazon Nova Experimental Chat 10 20: 72.1 (#141), Kimi K2 Thinking Turbo: 74.0 (#109)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Kimi K2 Thinking Turbo |
|---|---|---|
| LMArena Instruction Following | 1365 | 1403 |
Long Context Kimi K2 Thinking Turbo leads
Amazon Nova Experimental Chat 10 20: 41.7 (#133), Kimi K2 Thinking Turbo: 43.2 (#102)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Kimi K2 Thinking Turbo |
|---|---|---|
| LMArena Longer Query | 1370 | 1415 |
Writing & Preference Kimi K2 Thinking Turbo leads
Amazon Nova Experimental Chat 10 20: 56.6 (#136), Kimi K2 Thinking Turbo: 60.0 (#104)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Kimi K2 Thinking Turbo |
|---|---|---|
| LMArena Text | 1394 | 1415 |
| LMArena Creative Writing | 1318 | 1374 |
| LMArena Multi-Turn | 1364 | 1414 |
Frequently asked questions
Is Amazon Nova Experimental Chat 10 20 better than Kimi K2 Thinking Turbo?
Kimi K2 Thinking Turbo is the stronger model overall, scoring 45.8 to 42.1 on the Noometry Index.
Is Amazon Nova Experimental Chat 10 20 or Kimi K2 Thinking Turbo better for coding?
Amazon Nova Experimental Chat 10 20 scores higher on coding benchmarks: 41.6 versus 38.4 in the Noometry coding category.
How many benchmarks do Amazon Nova Experimental Chat 10 20 and Kimi K2 Thinking Turbo share?
17 benchmarks have published results for both models. Amazon Nova Experimental Chat 10 20 has 17 scored results on Noometry and Kimi K2 Thinking Turbo has 21.