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Claude Fable 5 vs Kimi K2
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| Attribute | Claude Fable 5 | Kimi K2 |
|---|---|---|
| Scores | ||
| Intelligence (ECI) | 162 | 140 |
| Coding | 99 | 7 |
| Math | 95 | 5 |
| Reasoning & Knowledge | 96 | 14 |
| Agentic & Tools | 98 | 18 |
| Specifications | ||
| Developer | Anthropic | Moonshot |
| Family | Claude | Kimi |
| Released | Jun 9, 2026 | Sep 5, 2025 |
| Parameters | — | 1T |
| Availability | API access | Open weights (restricted use) |
| Context window | 1M | 131K |
| Price — $/M input | $10.00 | $0.57 |
| Price — $/M output | $50.00 | $2.30 |
| Inputs | text, image, file | text |
| Outputs | text | text |
| Benchmarks | ||
| AIME 2024/2025 | 100% | 57% |
| APEX | 45% | — |
| GPQA Diamond | 93% | 77% |
| Humanity's Last Exam | 53% | 7% |
| SciCode | 60% | 35% |
| SimpleBench | 82% | 26% |
| SimpleQA Verified | 68% | — |
| WebDev Arena | 1654 | — |
| WeirdML | 92% | 39% |
| τ²-bench | 99% | 61% |
| GSO (code optimization) | — | 5% |
| LiveCodeBench | — | 56% |
| MMLU-Pro | — | 82% |
| Terminal-Bench | — | 28% |
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.