Muse Ember
Meta released Muse Ember, its smallest and cheapest Muse model for high-volume agent work, at $0.10 per million input tokens and $0.50 per million output tokens with a 1M-token context window.
Ember is the fourth Muse model, after Spark, Glimmer and Wonder, and the first trained using Muse Wonder Full. It takes text, images, audio and video, and can return up to 512K tokens. Meta says it matches Claude Haiku 5.5 on the Artificial Analysis Intelligence Index at about a third of the cost per task, though Haiku leads on FrontierCode 2.0-AA.
- Date
- Monday 9 November 2026
- Lab
- Meta
- Kind
- model
- Access
- closed API
- Price
- $0.10 per million input tokens, $0.004 per million cached input tokens, $0.50 per million output tokens
Figures
| Measure | Value | Measured by |
|---|---|---|
| Artificial Analysis Intelligence Index (max reasoning) | 35.8 vs 36.2 for Claude Haiku 5.5 and 27.8 for GPT-6 Luna Index v5 | Artificial Analysis |
| Cost per task (max reasoning) | $0.136 vs $0.411 for Haiku 5.5 Estimated at Meta list prices | Artificial Analysis |
| FrontierCode 2.0-AA | 27.2% vs 34.9% for Haiku 5.5 Haiku leads | Artificial Analysis |
| AutomationBench-AA | 37.8% vs 13.9% for Haiku 5.5 and 20.2% for Luna | Artificial Analysis |
| OSWorld 2.1 (partial credit) | 69.5% vs 68.9% for Haiku 5.5 Meta internal run | company |
Available through the Meta Model API and Muse Code as muse-ember-1.0. Meta has not said it will release weights. Several benchmarks are Meta internal runs.
Sources
- the-decoder.com/meta-launches-muse-ember-a-small-ai-model-built-for-the-repetitive-work-ag
- mlq.ai/news/meta-releases-muse-ember-a-10-cent-per-million-token-model-for-high-volume-age
- officechai.com/ai/muse-ember-benchmarks/
- thehansindia.com/tech/meta-launches-muse-ember-a-small-ai-model-with-powerful-capabilities
- tekedia.com/meta-releases-muse-ember-a-low-cost-ai-model-designed-to-handle-high-volume-ag
- oodaloop.com/briefs/technology/meta-unveils-muse-ember-a-lightweight-model-built-for-high-
- martincid.com/technology-sv/zuckerberg-meta-muse-ember-price-per-token/
- kingy.ai/news/meta-muse-ember-cheapest-ai-model-agents/
- tech.yahoo.com/ai/meta-ai/articles/meta-launches-muse-ember-cheaper-055234744.html
This record was checked against its sources on 9 November 2026. How we check