Claude Haiku 4.5 vs Muse Spark
Claude Haiku 4.5 (Anthropic) and Muse Spark (Meta AI) compared on benchmarks, pricing, context window, and use-case rankings.
- Muse Spark leads on overall intelligence (ECI 154 vs 143).
- Muse Spark ranks higher for coding (79th vs 24th percentile).
| Attribute | Claude Haiku 4.5 | Muse Spark |
|---|---|---|
| Scores | ||
| Intelligence (ECI) | 143 | 154 |
| Coding | 24 | 79 |
| Math | 13 | 66 |
| Reasoning & Knowledge | 12 | 84 |
| Agentic & Tools | 22 | 64 |
| 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.
Frequently asked questions
Is Claude Haiku 4.5 better than Muse Spark?
On Epoch AI's Capabilities Index, Muse Spark scores higher (154) than Claude Haiku 4.5 (143). The right pick depends on your task — compare their coding, math, and reasoning scores in the table above.
Which is better for coding, Claude Haiku 4.5 or Muse Spark?
Across coding benchmarks like SWE-bench Verified and Terminal-Bench, Muse Spark ranks higher — 79th vs 24th percentile among the models tracked on Model Beat.
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Benchmarks & model data from Epoch AI (CC BY); pricing & specs from OpenRouter. ECI = Epoch Capabilities Index.