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Claude Haiku 4.5 vs Muse Spark
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| Attribute | Claude Haiku 4.5 | Muse Spark |
|---|---|---|
| Scores | ||
| Intelligence (ECI) | 143 | 153 |
| Coding | 22 | 76 |
| Math | 13 | 64 |
| Reasoning & Knowledge | 11 | 82 |
| Agentic & Tools | 20 | 63 |
| Specifications | ||
| Developer | Anthropic | Meta AI |
| Family | Claude | — |
| Released | Oct 15, 2025 | Apr 8, 2026 |
| Parameters | — | — |
| Availability | API access | API access |
| Context window | 200K | — |
| Price — $/M input | $1.00 | — |
| Price — $/M output | $5.00 | — |
| Inputs | text, image, file | — |
| Outputs | text | — |
| Benchmarks | ||
| AIME 2024/2025 | 67% | 89% |
| APEX | 9% | — |
| ARC-AGI | 48% | — |
| ARC-AGI-2 | 4% | — |
| FrontierMath | 6% | 39% |
| FrontierMath Tier 4 | 2% | 15% |
| GPQA Diamond | 71% | 90% |
| MATH Level 5 | 96% | — |
| SimpleQA Verified | 6% | 66% |
| Terminal-Bench | 36% | — |
| WebDev Arena | 1322 | 1513 |
| WeirdML | 45% | — |
| Humanity's Last Exam | — | 41% |
| SciCode | — | 52% |
| 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.