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New launchMeta · Announced 2026-10-15 · Found by us 10/16/2026

Meta releases Muse Spark Open weights for coding and AI agents

Meta is releasing Muse Spark Open for developers to download, run and adapt themselves. The model is designed for coding and AI agents, but Meta is keeping its more advanced technology closed.

What changed

Meta announced the release of Muse Spark Open’s weights—the settings developers need to run and adapt the model themselves. The release fulfills an earlier commitment to make its technology widely available. According to Meta, it is less advanced than Muse Wonder, which debuted earlier that week.

Why it may matter for your work

Developers could adapt the model for coding tasks or build AI agents around it. Access to the weights may give teams more control over how they run and customize the model.

What it can actually do

Developers can download, run and modify the model, which is designed for coding and supporting AI agents.

Limits to check

Meta says Muse Spark Open is less advanced than Muse Wonder. Its most advanced technology remains closed; pricing, licensing terms and hardware requirements are not stated on the source page.

“On Thursday, Meta announced it’s releasing the “weights” — the settings that allow developers to run and adapt a model themselves — to Muse Spark Open.”From the linked source page