Meta debuted Muse Spark on April 8, 2026, the first model from Meta Superintelligence Labs led by chief AI officer Alexandr Wang. The multimodal model accepts voice, text, and image inputs and includes a "Contemplating" mode that dispatches a parallel squad of AI agents for complex queries. All versions are free via the Meta AI app and web. The release supersedes Meta's Llama 4 lineup and represents a ground-up rebuild rather than an incremental update.