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Muse Code takes on complex software engineering tasks across large repositories: planning changes, writing code, and validating the results.

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announcementMeta AI Research2 Sept 2026

Introducing Muse Spark 1.3

Meta Superintelligence Labs releases Muse Spark 1.3, a coding and agentic model that asks clarifying questions, confirms before consequential actions, and uses ~20% fewer tool calls and ~25% fewer tokens than 1.2. Shipping in Muse Code and the Meta Model API; max reasoning follows after safety testing.

Meta Superintelligence Labs
research.meta.ai
articleDrew Breunig14 Aug 2026

Harnesses are Situated Agents

Harnesses manage the systems around agents, from the session, to the company, to the domain.

Drew Breunig
dbreunig.com
announcementMeta AI Research5 Aug 2026

Introducing Muse Code and Muse Spark 1.2

Introducing Muse Code, a terminal coding agent powered by Muse Spark 1.2, with persistent background agents, repository-scale execution, and built-in verification.

Meta Superintelligence Labs
research.meta.ai

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