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Kimi K2.6 vs Kimi K3
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| Attribute | Kimi K2.6 | Kimi K3 |
|---|---|---|
| Scores | ||
| Intelligence (ECI) | 151 | 157 |
| Coding | 71 | 99 |
| Math | 70 | 81 |
| Reasoning & Knowledge | 60 | 78 |
| Agentic & Tools | 62 | 84 |
| Specifications | ||
| Developer | Moonshot | Moonshot |
| Family | Kimi | Kimi |
| Released | Apr 20, 2026 | Jul 16, 2026 |
| Parameters | 1T | 2.8T |
| Availability | Open weights (unrestricted) | Open weights (non-commercial) |
| Context window | 262K | 1M |
| Price — $/M input | $0.70 | $2.80 |
| Price — $/M output | $3.50 | $14.00 |
| Inputs | text, image | text, image, video |
| Outputs | text | text |
| Benchmarks | ||
| AIME 2024/2025 | 96% | 97% |
| APEX | 19% | 39% |
| FrontierMath | 39% | — |
| FrontierMath Tier 4 | 15% | — |
| GPQA Diamond | 91% | 93% |
| Humanity's Last Exam | 38% | 47% |
| SciCode | 54% | 59% |
| SimpleQA Verified | 39% | 43% |
| SWE-bench Verified | 77% | — |
| WebDev Arena | 1526 | 1682 |
| WeirdML | 56% | 83% |
| τ²-bench | 96% | — |
| ARC-AGI | — | 95% |
| ARC-AGI-2 | — | 60% |
Use-case scores are 0–100 percentile composites across each area’s benchmarks, ranked against every model from the past year. Highlighted cells lead each row. Open a model for the full picture.
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Benchmarks & model data from Epoch AI (CC BY); pricing & specs from OpenRouter. ECI = Epoch Capabilities Index.