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Grok 4.1 vs Muse Spark
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| Attribute | Grok 4.1 | Muse Spark |
|---|---|---|
| Scores | ||
| Intelligence (ECI) | — | 153 |
| Coding | 1 | 76 |
| Math | — | 64 |
| Reasoning & Knowledge | — | 82 |
| Agentic & Tools | 19 | 63 |
| Specifications | ||
| Developer | xAI | Meta AI |
| Family | Grok | — |
| Released | Nov 17, 2025 | Apr 8, 2026 |
| Parameters | — | — |
| Availability | API access | API access |
| Context window | — | — |
| Price — $/M input | — | — |
| Price — $/M output | — | — |
| Inputs | — | — |
| Outputs | — | — |
| Benchmarks | ||
| APEX | 13% | — |
| WebDev Arena | 1209 | 1513 |
| AIME 2024/2025 | — | 89% |
| FrontierMath | — | 39% |
| FrontierMath Tier 4 | — | 15% |
| GPQA Diamond | — | 90% |
| Humanity's Last Exam | — | 41% |
| SciCode | — | 52% |
| SimpleQA Verified | — | 66% |
| τ²-bench | — | 92% |
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.