Next AI Model: Meta Muse Spark (open weights) releases https://www.nextaimodel.com/lines/meta-muse-open Every new release in Meta's Muse Spark (open weights) line, from Next AI Model. Newest 20 releases. en Fri, 16 Oct 2026 09:51:54 GMT Muse Spark Open https://www.nextaimodel.com/models/muse-spark-open https://www.nextaimodel.com/models/muse-spark-open Thu, 15 Oct 2026 12:00:00 GMT Meta Meta · Muse Spark (open weights) line · released October 15, 2026. Meta's first downloadable Muse Spark: an 816B-parameter mixture-of-experts model with about 42B active parameters, a 1M-token context and text, image, video and audio input, released under the Muse Model License.