Muse is Meta's AI system built for developers, combining a model family and a toolset into a coherent platform for building AI agents and AI-assisted applications.
At its core is the Muse Spark model family (latest 1.3), trained for long-horizon, agentic workflows and coding tasks. It is complemented by Muse Code (a terminal-based, multi-agent coding tool integrated with Muse Spark), Muse Glimmer (a local agent model), Muse Image (visual reasoning and planning), and Muse Voice Transcribe (speech-to-text with speaker identification).
The system stands out for long-context reasoning, multimodal perception (video, images, documents), and agentic task execution — it tracks context and prior results, works through messy or conflicting inputs, and asks for input when needed. Access is via the Meta Model API (a self-serve platform) and partners such as OpenRouter, with compatibility for OpenAI SDK-compatible tools.
