Muse Spark 1.3 rolls out in Muse Code and Meta Model API, max reasoning pending

AIatMeta · x · 2026-09-03

Meta AI announced Muse Spark 1.3 is rolling out today in Muse Code and the Meta Model API. The max reasoning tier will follow once safety testing is complete. The model brings stronger agentic/coding performance, 20% fewer tool calls and 25% fewer tokens.

Related event: Meta Launches Muse Spark 1.3 with Agentic and Coding Gains(22 posts)→

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