Meta Superintelligence Labs launches Muse Spark, its first closed model

Meta released Muse Spark, the first model from Meta Superintelligence Labs, as a closed model that replaces the open-weight Llama line for its own products. It powers the Meta AI assistant in the Meta AI app and on meta.ai, with a rollout to Facebook, Instagram, WhatsApp, Messenger and Ray-Ban glasses planned in the coming weeks. A private API preview is available to select partners. The shift to a closed model matters for how traders read Meta's AI strategy.

• Released April 8, 2026; a small, fast reasoning model that accepts text and images
• Closed for now, a change from Meta's open-weight Llama approach
• Powers Meta AI in the Meta AI app and on meta.ai
• Private API preview for select partners; planned rollout across Meta apps and glasses