Muse Spark 1.3

Muse Spark 1.3 is Meta's new AI model designed for agentic workflows and competitive coding performance, featuring improved first-attempt accuracy and reliable tool calling capabilities. The model includes native multimodal perception for video, images, and documents, and tracks context across long-horizon tasks while handling complex inputs intelligently. Developers can access it through multiple platforms including Muse Code, Meta Model API, and OpenRouter, with pricing starting at $1.25 per million input tokens.