Meta releases Muse Spark 1.3 with better agentic and coding performance
Meta launched Muse Spark 1.3 today on Muse Code and Meta Model API. The model handles longer multi-step tasks by asking clarifying questions, requesting help when stuck, and confirming before taking consequential actions. Benchmarks show it beats Muse Spark 1.2, GPT 5.6 Sol (max), and Opus 5 (max) on agent, coding, instruction-following, and long-context evals. Two demos are included: one generates a CFD simulation report from CAD files and exports it as a PDF, another edits bass guitar mistakes in a multi-track session. The max reasoning mode is still undergoing safety testing and will ship later.
Why it matters: Meta ships Muse Spark 1.3 with agent/coding benchmarks beating GPT 5.6 on several metrics, plus three concrete interaction mechanisms that make agent deployment more practical. Held below 85 because it's an iterative release, not a new architecture, and max reasoning mode is s...