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GPT-5 mini vs Muse Spark
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| Attribute | GPT-5 mini | Muse Spark |
|---|---|---|
| Scores | ||
| Intelligence (ECI) | 146 | 153 |
| Coding | 22 | 76 |
| Math | 52 | 64 |
| Reasoning & Knowledge | 25 | 82 |
| Agentic & Tools | 24 | 63 |
| Specifications | ||
| Developer | OpenAI | Meta AI |
| Family | GPT | — |
| Released | Aug 7, 2025 | Apr 8, 2026 |
| Parameters | — | — |
| Availability | API access | API access |
| Context window | 400K | — |
| Price — $/M input | $0.25 | — |
| Price — $/M output | $2.00 | — |
| Inputs | text, image, file | — |
| Outputs | text | — |
| Benchmarks | ||
| AIME 2024/2025 | 87% | 89% |
| ARC-AGI | 54% | — |
| ARC-AGI-2 | 4% | — |
| FrontierMath | 27% | 39% |
| FrontierMath Tier 4 | 6% | 15% |
| GPQA Diamond | 75% | 90% |
| Humanity's Last Exam | 19% | 41% |
| LiveCodeBench | 69% | — |
| MATH Level 5 | 98% | — |
| MMLU-Pro | 83% | — |
| SciCode | 41% | 52% |
| SimpleQA Verified | 21% | 66% |
| SWE-bench Verified | 65% | — |
| Terminal-Bench | 35% | — |
| WeirdML | 53% | — |
| τ²-bench | 71% | 92% |
| WebDev Arena | — | 1513 |
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.