Muse Spark Open 816B-A42B
- Made by
- Meta
- Released
- Announced in
- Build with Muse Spark Opendev.meta.ai
- Event
- Muse Spark Open
- API record
- /api/v1/models/muse-spark-open-816b-a42b
Benchmark results
| Benchmark | Score | Source check |
|---|---|---|
| MCP Atlasrun by Scale AI; xhigh effort | 89.2% | CheckedA person checked this number against its source on 20 Oct 2026. This confirms the number matches what the lab published, not that the score was reproduced. |
Sources
Reported by Meta
- Introducing Muse Spark Open, The Most Capable US Open-Weight Model to Dateresearch.meta.ai · 15 Oct 2026
Original image
