Meta Switches From Open‑Source Llama to Proprietary Muse Spark Model

Meta announces it will stop supporting the open‑source Llama large language model and will instead develop and release a new proprietary model called Muse Spark, shifting its AI strategy toward closed‑source offerings. The decision was detailed in a company blog post that outlined the timeline for phasing out Llama updates and allocating resources to Muse Spark development.

Llama had been released as an open‑source model in previous years, allowing developers to download, modify, and run the code freely; with Meta’s abandonment, community contributors will no longer receive official updates, and the model may gradually become unsupported.

Muse Spark is described as a proprietary AI system that Meta will keep under internal control, promising tighter integration with its existing products and services; the shift signals a move away from community‑driven research toward monetized, closed AI offerings.