Muse Spark 1.3 Rolls Out With Biggest Coding and Agentic Jump Yet, Open Weights Teased

armand_ruiz · x · 2026-09-03

finkd announced Muse Spark 1.3 is rolling out today, calling it the biggest jump yet on coding and agentic work, with frontier performance "almost too cheap to meter," available in Muse Code and the API. He also teased a next release hinted at with a watermelon emoji and said Muse Spark open weights are coming soon.

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

Original post →

More from Models

Models channel →