Muse Spark 1.3 rolls out with 'biggest jump yet' on coding and agentic work

danshipper · x · 2026-09-03

Mark announced Muse Spark 1.3 is rolling out today, claiming frontier performance "almost too cheap to meter" and the biggest jump yet on coding and agentic work, available in Muse Code and the API. 🍉 and open-weight releases are teased next. The poster jokes they'll now run their own benchmark on the model.

Related event: Meta launches Muse Spark 1.3, matching Fable 5 at a fraction of the price(53 posts)→

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