Model Watch · Meta
Muse Glimmer
Meta's open-weight agentic model, Apache 2.0, and the only Muse you can run yourself. Note the org: it's meta-models on Hugging Face, not meta-llama.
What is Muse Glimmer?
Muse Glimmer is a model from Meta, built in the US. It's out, and you can call it today.
When did Muse Glimmer come out?
Meta released it on 10 August 2026. That date comes from the lab's own docs.
What does it cost, and how much context does it hold?
| Lab | Meta |
|---|---|
| Built in | US |
| Status | released |
| API model id | Not published |
| Released | 10 August 2026 |
| Context window | 131,072 tokens |
| Max output | Not published |
| Input, per 1M tokens | Not published |
| Output, per 1M tokens | Not published |
List prices per million tokens, read off the lab's own docs. Caching, batching and volume deals all cut the real number, so treat this as the ceiling. Check the source before you budget against it.
How does it compare to Meta's other models?
| Model | Status | Date | Context | In / 1M | Out / 1M |
|---|---|---|---|---|---|
| Muse Glimmer | released | 10 August 2026 | 131,072 tokens | — | — |
| Muse Spark 1.3 | released | 2 September 2026 | 1,048,576 tokens | $1.25 | $4.25 |
| Muse Spark 1.1 | released | 9 July 2026 | 1,048,576 tokens | $1.25 | $4.25 |
| Muse Video | announced | — | — | — | — |
| Muse Spark 1.2 | released | — | 1,048,576 tokens | $1.25 | $4.25 |
| Llama 5 | rumoured | — | — | — | — |
| Llama 4 Scout | released | — | — | — | — |
A dash means the lab hasn't published that number for that model.
What are people discussing about Muse Glimmer?
We tracked 3 public discussions naming Muse Glimmer across r/LocalLLaMA between 11 August 2026 and 26 August 2026.
The subject that came up most was how much it can hold at once. A discussion can cover several, so these add up to more than 3.
| What people are discussing | Threads |
|---|---|
| how much it can hold at once | 1 |
Every mention we've logged
Every tracked post, release, changelog entry or incident whose title or summary names Muse Glimmer. Newest first, each one linking to where the lab published it.
Nothing yet. The name hasn't appeared in a tracked source.
Keep reading
The release timeline is every model we know about, filterable by lab, country and date. The tracker is the live feed these mentions come from, and Model Watch is the whole catalogue on one page.
More from Meta:
- Muse Spark 1.3 · released
- Muse Spark 1.1 · released
- Muse Video · announced
- Muse Spark 1.2 · released
- Llama 5 · rumoured
- Llama 4 Scout · released
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