Muse Spark 1.1 is a multimodal reasoning model from Meta Superintelligence Labs, built for agentic tasks with major gains in tool use, computer use, coding, and multimodal understanding. It accepts text, images, video, audio, and PDF documents, supports a 1 million-token context window, and runs natively in "Thinking" mode for complex multi-step reasoning. The model excels at personal agentic tasks requiring planning and orchestration across external apps and services, including multi-agent delegation, computer use, and long-context workflow management.