Model releaseModerate global significanceConfirmed confidence
Meta releases Muse Spark 1.2 and Muse Code beta
Meta releases the coding-focused Muse Spark 1.2 on August 5, 2026, alongside the Muse Code beta.
What happened
Event details
Muse Spark 1.2 is Meta's coding-oriented model update. Meta says it was jointly trained with the Muse Code terminal coding agent and is available through the Meta Model API.
Assessment
Why it matters
Released by a major platform provider, the model targets long-horizon software engineering and the API developer market and launches alongside its coding agent. Parameters, architecture and a model card are not public, so its long-term technical impact remains unverified.
68/100Global significance score. Regional effects are recorded only when the evidence supports a meaningful difference.
Availability
Access notes
Muse Code is in beta. The model is available through the Meta Model API, subject to official regional and account restrictions.