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Alexandr Wang

@alexandr_wang · view on X ↗

chief ai officer @meta, founder meta superintelligence labs, founder @scale_ai. rational in the fullness of time

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Apr 8, 2026
1/ today we're releasing muse spark, the first model from MSL. nine months ago we rebuilt our ai stack from scratch. new infrastructure, new architecture, new data pipelines. muse spark is the result...
SummaryMeta released Muse Spark, a new multimodal AI model that powers Meta AI with support for tool-use, visual reasoning, and multi-agent orchestration. The model includes Contemplating Mode for complex reasoning tasks and Shopping Mode for recommendations, with extensive safety evaluations completed before deployment.9 tweets1 min read