Meta Muse Spark 1.1: First Paid AI Model API Launched

Meta Superintelligence Labs has launched Muse Spark 1.1, a new multimodal reasoning model. This model is designed for coding, computer use, and complex tasks involving external tools. What's interesting is that Meta has also opened a public preview of its Model API. This marks a big change, as developers can now access Muse Spark 1.1 through a hosted, pay-per-token service. Muse Spark 1.1 is built for "agentic tasks." This means it can plan multi-step work, operate software tools, and complete actions across different applications with limited human involvement. It accepts text, images, videos, and PDF documents as input and provides text responses. The model can process large collections of documents or maintain information over long sessions. One key feature is its ability to manage its own context during long tasks. It can remember previous actions and coordinate multiple agents to complete a task. Meta says the model can adapt to unfamiliar tools without extra training. Muse Spark 1.1 can decide whether to complete a task through direct interface controls or automated scripts. For example, it can click and type, or write scripts for complex work. Demonstrations show it processing video to create a Facebook Marketplace listing and building a web application. Meta's own testing indicates Muse Spark 1.1 performs well against other models like Claude Opus 4.8 and GPT-5.5 on several tool-use and reasoning tests. This new model could change how developers integrate advanced AI capabilities into their applications.