Key Info
Meta's Muse Spark Open is now live on Requesty under the model name muse-spark-open. Meta describes it as the most capable US open-weight model to date, built for coding and long-horizon agentic work.
Highlights
- 816B total parameters with 42B active parameters
- 1M token context window
- Designed for coding, complex software engineering, and multi-step reasoning
- Positioned by Meta as the most capable US open-weight model to date
- Available via the Requesty gateway as model muse-spark-open