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GLM-5.1 vs Muse Spark
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| Attribute | GLM-5.1 | Muse Spark |
|---|---|---|
| Scores | ||
| Intelligence (ECI) | 151 | 153 |
| Coding | 58 | 76 |
| Math | 60 | 64 |
| Reasoning & Knowledge | 47 | 82 |
| Agentic & Tools | 94 | 63 |
| Specifications | ||
| Developer | Z.ai (Zhipu AI) | Meta AI |
| Family | — | — |
| Released | Apr 7, 2026 | Apr 8, 2026 |
| Parameters | 754B | — |
| Availability | — | API access |
| Context window | 205K | — |
| Price — $/M input | $0.98 | — |
| Price — $/M output | $4.30 | — |
| Inputs | text | — |
| Outputs | text | — |
| Benchmarks | ||
| AIME 2024/2025 | 92% | 89% |
| FrontierMath | 33% | 39% |
| FrontierMath Tier 4 | 13% | 15% |
| GPQA Diamond | 85% | 90% |
| Humanity's Last Exam | 28% | 41% |
| SciCode | 44% | 52% |
| SimpleBench | 55% | — |
| SimpleQA Verified | 37% | 66% |
| SWE-bench Verified | 74% | — |
| WebDev Arena | 1534 | 1513 |
| WeirdML | 57% | — |
| τ²-bench | 98% | 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.