Meta's Muse Spark is its first frontier model and its first without open weights

THE DECODER / 4/9/2026

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Meta Superintelligence Labs has released Muse Spark, described as its first “frontier” model aimed at closing performance gaps with leading AI labs.
The model is Meta’s first frontier release without open weights, marking a shift in how the company shares access to its most advanced systems.
Independent evaluations cited in the article suggest Muse Spark is narrowing the gap versus OpenAI, Anthropic, and Google on relevant benchmarks.
The piece emphasizes that major competitors are also advancing rapidly, so the competitive landscape is unlikely to pause despite Meta’s release.

Meta Superintelligence Labs ships Muse Spark, its first frontier model and Meta's first without open weights. Independent testing shows it closing the gap to OpenAI, Anthropic, and Google, but the competition isn't standing still.

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