Models
Meta ships Muse Spark 1.3 for agents and coding
Meta AI Research released Muse Spark 1.3 on September 2, 2026, with stronger agentic and coding performance, rolling out in Muse Code and the Meta Model API. The update improves longer-horizon workflows, multitasking in messy threads, and coding efficiency (Meta engineers report ~20% fewer tool calls and ~25% fewer tokens vs 1.2). Reasoning modes ship now; max reasoning follows after more safety testing.