Model comparison
Amazon Nova Experimental Chat 26 02 10 vs Kimi K3
Kimi K3 is the stronger model overall, scoring 59.5 to 44.5 on the Noometry Index.
Last verified . 12 shared benchmarks.
Summary
- They share 12 benchmarks with published results for both. Amazon Nova Experimental Chat 26 02 10 scores higher in 0 categories and Kimi K3 in 8 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in math, where Kimi K3 leads 74.2 to 39.3.
- Kimi K3 has downloadable open weights; the other is API-only.
Side by side
| Amazon Nova Experimental Chat 26 02 10 | Kimi K3 | |
|---|---|---|
| Provider | Amazon | Moonshot AI |
| Noometry Index | 44.5 | 59.5 |
| Released | — | 2026-07-16 |
| Weights | Proprietary | Open |
| Context window | — | 1.05M |
| Max output | — | 1.05M |
| Input $ / M tokens | — | $3 |
| Output $ / M tokens | — | $15 |
| Results tracked | 12 | 53 |
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Category by category
Coding Kimi K3 leads
Amazon Nova Experimental Chat 26 02 10: 43.9 (#82), Kimi K3: 61.0 (#10)
| Benchmark | Amazon Nova Experimental Chat 26 02 10 | Kimi K3 |
|---|---|---|
| LMArena Coding | 1483 | 1508 |
| DeepSWE | — | 68.5% |
| FrontierCode | — | 44.2% |
| LMArena WebDev | — | 1654 |
| FrontierSWE | — | 25.9% |
| SciCode | — | 59.5% |
| WeirdML | — | 82.6% |
| ALE-Bench | — | 1,524 |
Agentic & Tool Use Not comparable
Amazon Nova Experimental Chat 26 02 10: —, Kimi K3: 41.8 (#20)
| Benchmark | Amazon Nova Experimental Chat 26 02 10 | Kimi K3 |
|---|---|---|
| APEX-Agents | — | 50.6% |
| τ²-bench Banking | — | 37.1% |
| PostTrainBench | — | 32% |
| GBAEval | — | 48.3% |
| GDP.pdf | — | 19% |
| Vending-Bench 2 | — | 5,165 |
Reasoning Kimi K3 leads
Amazon Nova Experimental Chat 26 02 10: 30.1 (#86), Kimi K3: 63.0 (#17)
| Benchmark | Amazon Nova Experimental Chat 26 02 10 | Kimi K3 |
|---|---|---|
| LMArena Hard Prompts | 1458 | 1496 |
| ARC-AGI-2 | — | 60.4% |
| SimpleBench | — | 60.7% |
| NYT Connections (extended) | — | 93.6% |
| ARC-AGI-1 | — | 94.5% |
| CritPt | — | 23.4% |
| Chess Puzzles | — | 39% |
| Mystery Game Puzzles | — | 26% |
| DTBench | — | 91.2% |
| LMCA | — | 52.7% |
| Surface Evolver Bench | — | 95% |
| Epoch Capabilities Index | — | 157.45 |
| ForecastBench | — | 61.1 |
Math Kimi K3 leads
Amazon Nova Experimental Chat 26 02 10: 39.3 (#109), Kimi K3: 74.2 (#16)
| Benchmark | Amazon Nova Experimental Chat 26 02 10 | Kimi K3 |
|---|---|---|
| LMArena Math | 1438 | 1491 |
| FrontierMath (Tiers 1-3) | — | 72.2% |
| FrontierMath Tier 4 | — | 39% |
| MathArena Final-Answer Competitions | — | 87.8% |
| OTIS Mock AIME 2024-2025 | — | 97.2% |
| ProofBench | — | 87% |
Knowledge Kimi K3 leads
Amazon Nova Experimental Chat 26 02 10: 42.3 (#97), Kimi K3: 63.2 (#21)
| Benchmark | Amazon Nova Experimental Chat 26 02 10 | Kimi K3 |
|---|---|---|
| LMArena Expert | 1506 | 1521 |
| GPQA Diamond | — | 93.1% |
| SimpleQA Verified | — | 50.6% |
Multimodal Not comparable
Amazon Nova Experimental Chat 26 02 10: —, Kimi K3: 37.8 (#70)
| Benchmark | Amazon Nova Experimental Chat 26 02 10 | Kimi K3 |
|---|---|---|
| Blueprint-Bench 2 | — | 29.5% |
| Furniture Assembly | — | 34.2% |
Multilingual Kimi K3 leads
Amazon Nova Experimental Chat 26 02 10: 54.0 (#50), Kimi K3: 56.3 (#21)
| Benchmark | Amazon Nova Experimental Chat 26 02 10 | Kimi K3 |
|---|---|---|
| LMArena Non-English | 1434 | 1466 |
| LMArena Chinese | 1463 | 1529 |
| LMArena Russian | 1423 | 1482 |
| LMArena French | — | 1491 |
| LMArena German | — | 1488 |
| LMArena Japanese | — | 1487 |
| LMArena Korean | — | 1458 |
| LMArena Spanish | — | 1472 |
Instruction Following Kimi K3 leads
Amazon Nova Experimental Chat 26 02 10: 75.2 (#69), Kimi K3: 77.7 (#14)
| Benchmark | Amazon Nova Experimental Chat 26 02 10 | Kimi K3 |
|---|---|---|
| LMArena Instruction Following | 1427 | 1483 |
Long Context Kimi K3 leads
Amazon Nova Experimental Chat 26 02 10: 44.0 (#77), Kimi K3: 45.8 (#29)
| Benchmark | Amazon Nova Experimental Chat 26 02 10 | Kimi K3 |
|---|---|---|
| LMArena Longer Query | 1441 | 1494 |
Writing & Preference Kimi K3 leads
Amazon Nova Experimental Chat 26 02 10: 61.8 (#84), Kimi K3: 76.6 (#4)
| Benchmark | Amazon Nova Experimental Chat 26 02 10 | Kimi K3 |
|---|---|---|
| LMArena Text | 1448 | 1476 |
| LMArena Creative Writing | 1368 | 1454 |
| LMArena Multi-Turn | 1442 | 1488 |
| EQ-Bench Creative Writing | — | 2082 |
| EQ-Bench 4 | — | 1339 |
Frequently asked questions
Is Amazon Nova Experimental Chat 26 02 10 better than Kimi K3?
Kimi K3 is the stronger model overall, scoring 59.5 to 44.5 on the Noometry Index.
Is Amazon Nova Experimental Chat 26 02 10 or Kimi K3 better for coding?
Kimi K3 scores higher on coding benchmarks: 61.0 versus 43.9 in the Noometry coding category.
How many benchmarks do Amazon Nova Experimental Chat 26 02 10 and Kimi K3 share?
12 benchmarks have published results for both models. Amazon Nova Experimental Chat 26 02 10 has 12 scored results on Noometry and Kimi K3 has 53.