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Meta launches Muse Spark, new multimodal AI model

techApr 8, 2026550

Meta launched Muse Spark, a new multimodal reasoning model that will power the Meta AI app and other products. The model was developed over the past nine months by Meta's Superintelligence Labs, representing a ground-up rebuild of the company's AI stack. Muse Spark is the first major model released under Alexandr Wang's leadership, positioned to replace Llama 4 across Meta services. It adds features such as a Contemplating mode and new health-focused capabilities, signaling a strategic push into integrated generative AI.

Key Highlights

Muse Spark will power the Meta AI app and other future Meta products.
The model was built over nine months by Meta's Superintelligence Labs.
Muse Spark replaces Llama 4 and adds Contemplating mode plus health features.
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