MUSE SPARK 1.3

Summary from the TLDR Dev newsletter

Muse Spark 1.3 is Meta's updated model for long-running agentic and coding workflows. It better tracks prior work, handles messy or conflicting context, asks for clarification when needed, and uses roughly 20% fewer tool calls and 25% fewer tokens than Muse Spark 1.2 in Meta's internal coding comparisons.