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Muse Spark: Meta's first closed-weight model — and its break with Llama
Meta unveiled Muse Spark, the first model from its Superintelligence Labs — proprietary, not open. Little has been tested independently so far.
Muse Spark
Meta's flagship of the Muse line — a multimodal reasoning model that uses "thought compression" to run on far less compute than Llama 4 Maverick; closed-weight, with API access planned.
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Meta Muse Spark 1.3: agentic coding, thought more efficiently
Meta ships Muse Spark 1.3 — successor to 1.2 with agentic coding and thought compression. What's new, what it costs, and who it's for.