Zuck's Muse to Spark joy with open weights release 'soon'
Meta has released Muse Spark 1.3, an updated version of its AI model designed to be more efficient and capable of asking clarifying questions. The update aims to reduce token waste and improve performance in long-horizon tasks for AI agents and code assistants.
Why it matters
As AI competition intensifies, companies are focusing on model efficiency and reliability to justify high capital expenditures.
While you wait, Meta says it’s taught the model to stop wasting tokens and ask for help a bit more often
Tobias Mann Tobias Mann SYSTEMS EDITOR Published wed 2 Sep 2026 // 23:31 UTC
In the meantime, Muse Spark 1.3 — the smarter, less yappy, and more efficient version of the model — is now live on the Facebook parent's API service and Muse Code CLI.
Since releasing Muse Spark in April, Meta has released several refinements in order to keep pressure on the competition and convince investors its rampant capex isn't for naught.
Version 1.3 brings several notable refinements, particularly for those using the model with AI agents and code assistants, which is welcome news considering OpenClaw 2.0 also dropped this week.
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