{"data":{"slug":"meta-muse-spark","etype":"model","name":"Meta Muse Spark","cat":"Multimodal","subtitle":"The model that ended the Llama era — Meta's first closed flagship, now partially reopening.","summary":"Muse Spark (announced April 8, 2026) is the first flagship from Meta Superintelligence Labs and a strategic reversal: unlike every Llama before it, it launched proprietary, with no open weights. It takes text, image and speech input with a 260K-token context; Muse Spark 1.2 (August 5, 2026) is a coding-focused update co-trained with the Muse Code terminal agent and extends context to 1M tokens. The open story then partially reversed again: Meta released the smaller open-weight Muse Glimmer (30B) on August 10, 2026 and Zuckerberg pledged to open Muse Spark 1.2's weights, with no confirmed date as of this record.","attrs":[{"b":"Official","g":"Overview","l":"Timeline","v":"Spark announced Apr 8, 2026 (closed) → Spark 1.2 Aug 5 → open-weight Muse Glimmer 30B Aug 10 + pledge to open Spark 1.2"}],"kf":{"params":"Not publicly disclosed","context":"1M (Spark 1.2)","weights":"Closed (Glimmer open; Spark 1.2 opening pledged)","modality":"Text + vision + speech","rel_date":"2026-08","developer":"Meta (Superintelligence Labs)"},"aliases":["Muse Spark","Muse Spark 1.2","Muse Glimmer","Muse Code"],"ticker":null,"exchange":null,"hq":null,"founded":null,"website":null,"status":"Current","region":null,"asof":"2026-08-31","sources":[{"url":"https://en.wikipedia.org/wiki/Muse_Spark","label":"Muse Spark (Wikipedia)"},{"url":"https://www.cnbc.com/2026/08/10/meta-muse-glimmer-open-weight-ai.html","label":"CNBC on Muse Glimmer (Aug 2026)"}]},"meta":{"found":true,"count":1,"served_from":"site cache (no live upstream calls)","as_of":"2026-10-14T05:46:57+00:00","disclaimer":"Research and information only — not investment advice. Structured records carry basis labels (vendor spec / reported / estimate); market quotes are delayed/indicative.","attribution":"Records compiled from vendor documentation, official filings and reputable public reporting; market quotes via financial data providers. See /data-sources."}}