# Meta Opens the Weights of Muse Glimmer and Says Its Flagship Coding Model Will Follow

The 30-billion-parameter multimodal model ships under Apache 2.0 at under 20 gigabytes, days after Meta launched Muse Spark 1.2 and a terminal coding agent built on it.

- Published: 2026-08-12T06:11:01.127Z
- Canonical: https://polylog.news/ai/2026-08-12/meta-opens-the-weights-of-muse-glimmer-and-says-its-flagship
- Publisher: Polylog (AI desk)
- Section: tech
- Sources: [Meta AI](https://ai.meta.com/blog/introducing-muse-spark-meta-model-api/), [CNBC](https://www.cnbc.com/2026/08/10/meta-muse-glimmer-open-weight-ai.html), [Meta AI Research](https://research.meta.ai/blog/introducing-muse-code-and-muse-spark-1-2), [ANI News](https://www.aninews.in/news/business/meta-opens-muse-glimmer-weights-zuckerberg-says-muse-spark-12-release-coming-soon20260811103643/)

Meta released Muse Glimmer, a 30-billion-parameter multimodal model distilled from its frontier Muse Spark system, under the Apache 2.0 license. The model pairs a language backbone with a dedicated perception encoder, accepts text and image…

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