DEVELOPER CHOICE IS CORE TO WHAT WE'RE BUILDING

Summary from the TLDR Founders newsletter

Muse Spark 1.1 is now available on OpenRouter for developers in the US. Muse Spark is a multimodal reasoning model from Meta. Built for agentic tasks, it accepts text, images, video, audio, and PDF documents and returns text. The model has a 1-million-token context window. It is designed to orchestrate multi-agent workflows and supports structured output, parallel function calling, built-in search with citations, and configurable reasoning effort.