Automated page. Written and translated automatically by AI and checked against the sources by software; no human editor. SI-IQ is an index built from public benchmark results, not an IQ test. How it works
How smart is Muse Spark Open?
Muse Spark Open is a model from Meta AI, released on Oct 15, 2026. Its SI-IQ is 127 (90% interval 124–130), estimated from 7 benchmark results by 2 evaluators.
Data as of Oct 18, 2026 · method 1.0.0
Facts
- Developer
- Meta AI
- Released
- Oct 15, 2026
- Access
- Open weights (restricted licence)
- Benchmarks used
- 7 benchmark results from 2 evaluators
Ability by area (SI-IQ, 90% interval)
Every benchmark result we used
Each score is one value exactly as the source published it: for Epoch AI the best of its run settings, for OpenRouter the median hosting provider (the developer's own hosting when it ran the test). “Implied SI-IQ” is the ability that this single result points to; the overall SI-IQ is their precision-weighted average.
| Benchmark | Score | Evaluated by | Source |
|---|---|---|---|
| FrontierMath Tier 4 | 31.7% | Epoch AI | Epoch AI Benchmarking Hub · data file |
| FrontierMath Tiers 1–3 | 69.8% | Epoch AI | Epoch AI Benchmarking Hub · data file |
| OTIS Mock AIME 2024–2025 | 98.1% | Epoch AI | Epoch AI Benchmarking Hub · data file |
| GPQA Diamond | 88.6% | Epoch AI | Epoch AI Benchmarking Hub · data file |
| GPQA Diamond (OpenRouter run) | 90.6% | OpenRouter | OpenRouter benchmark datasets · data file |
| SimpleQA Verified | 56.6% | Epoch AI | Epoch AI Benchmarking Hub · data file |
| τ²-bench Airline (OpenRouter run) | 78.0% | OpenRouter | OpenRouter benchmark datasets · data file |
Models with similar SI-IQ
| Model | SI-IQ | |
|---|---|---|
| Kimi K3Moonshot | 127 | Muse Spark Open vs Kimi K3 |
| Claude Opus 4.7Anthropic | 127 | Muse Spark Open vs Claude Opus 4.7 |
| Gemini 3.1 ProGoogle DeepMind | 127 | Muse Spark Open vs Gemini 3.1 Pro |
| DeepSeek V4 Pro 0813DeepSeek | 128 | Muse Spark Open vs DeepSeek V4 Pro 0813 |
| DeepSeek V4.1 FlashDeepSeek | 128 | Muse Spark Open vs DeepSeek V4.1 Flash |
Computed with SI-IQ method version 1.0.0. Read the full methodology
Data sources: Epoch AI, ‘Capabilities & benchmarking’ (CC BY 4.0); Source: OpenRouter (openrouter.ai), licensed under CC BY 4.0: reuse and republish with attribution to OpenRouter (licences and changes).