Meta ships Muse Spark 1.3, claims biggest coding and agentic jump yet, open weights coming

SumitGup · x · 2026-09-03

Zuckerberg announced Muse Spark 1.3 rolls out today with Meta's biggest jump yet on coding and agentic work, at frontier performance "almost too cheap to meter," available in Muse Code and the API. Open weights releases of Muse Spark and "🍉" are coming next.

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