# Meta releases Muse Spark Open, an open-weight multimodal model



Meta



A sparse MoE natively multimodal model for long-horizon coding and agents. OpenRouter lists about $1.25/M input and $4.25/M output. Released under the Muse Model License with limited commercial terms.


## Availability

Open weights on Hugging Face and cloud model gardens under the Muse Model License \(limited commercial terms\); hosted on Baseten, Fireworks, Groq, Modal, Nebius, OpenRouter, and Together; runs on two M5 Ultra Mac Studios via MLX
- Model released: Oct 15, 2026 · Date only
- Review updated: Oct 16, 2026 08:07 Fri · Beijing Time (UTC+8)

## Sources

- Source excerpt: https://research.meta.ai/blog/muse-spark-open
- Source excerpt: https://x.com/AIatMeta/status/2110779754274292212
- Source excerpt: https://x.com/OpenRouter/status/2110793354154008685

Canonical entry: https://www.ailyre.com/source/?id=meta-muse-spark-open&lang=en