Overview
- Meta made the model available in the United States through Meta AI on the web and app with initial access for developers limited to a private API preview.
- Users see new assistant features now, including a shopping mode and answers that draw richer context from Instagram, Facebook and Threads.
- Muse Spark is built for multimodal reasoning with native visual interaction, tool use, chain‑of‑thought visualization and the ability to coordinate multiple AI agents.
- Meta says it applied its Advanced AI scaling and safety framework and reports strong refusal of high‑risk prompts such as biological or chemical weapon guidance.
- Independent tests find strong comprehension and visual analysis but weaker programming and abstract reasoning, and Meta plans deeper evaluation before a wider release.
- Meta signals a broader strategy to replace Llama models and expand the new system across Facebook, Instagram, WhatsApp, Messenger and future devices.
- Reports describe a larger 2026 AI budget of up to $135 billion and say Meta shares rose as much as 9% after the announcement.