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Claude Opus 5 vs Muse Spark
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| Attribute | Claude Opus 5 | Muse Spark |
|---|---|---|
| Scores | ||
| Intelligence (ECI) | 159 | 154 |
| Coding | 93 | 80 |
| Math | 93 | 65 |
| Reasoning & Knowledge | 92 | 82 |
| Agentic & Tools | 95 | 61 |
| Specifications | ||
| Developer | Anthropic | Meta AI |
| Family | Claude | — |
| Released | Jul 24, 2026 | Apr 8, 2026 |
| Parameters | — | — |
| Availability | API access | API access |
| Context window | 1M | — |
| Price — $/M input | $5.00 | — |
| Price — $/M output | $25.00 | — |
| Inputs | text, image, file | — |
| Outputs | text | — |
| Benchmarks | ||
| AIME 2024/2025 | 99% | 89% |
| APEX | 44% | — |
| ARC-AGI | 98% | — |
| ARC-AGI-2 | 88% | — |
| GPQA Diamond | 94% | 90% |
| Humanity's Last Exam | 53% | 41% |
| SciCode | 56% | 52% |
| SimpleQA Verified | 57% | 66% |
| FrontierMath | — | 39% |
| FrontierMath Tier 4 | — | 15% |
| WebDev Arena | — | 1513 |
| 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.