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Grok 4.6 vs Kimi K3
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| Attribute | Grok 4.6 | Kimi K3 |
|---|---|---|
| Scores | ||
| Intelligence (ECI) | 156 | 158 |
| Coding | 86 | 94 |
| Math | 87 | 73 |
| Reasoning & Knowledge | 69 | 69 |
| Agentic & Tools | 91 | 66 |
| Specifications | ||
| Developer | xAI | Moonshot |
| Family | Grok | Kimi |
| Released | Aug 12, 2026 | Jul 16, 2026 |
| Parameters | — | 2.8T |
| Availability | API access | Open weights (non-commercial) |
| Context window | 500K | 1M |
| Price — $/M input | $2.00 | $1.44 |
| Price — $/M output | $6.00 | $9.00 |
| Inputs | text, image, file | text, image, video |
| Outputs | text | text |
| Benchmarks | ||
| AIME 2024/2025 | 99% | 97% |
| APEX | 65% | 51% |
| ARC-AGI | 88% | 95% |
| ARC-AGI-2 | 67% | 60% |
| GPQA Diamond | 94% | 93% |
| Humanity's Last Exam | 43% | 47% |
| SciCode | 56% | 60% |
| SimpleBench | 76% | 61% |
| SimpleQA Verified | 49% | 51% |
| WebDev Arena | 1618 | 1674 |
| WeirdML | 67% | 83% |
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.