Meta has released Muse Spark 1.3, building on version 1.2 with enhanced agentic and coding capabilities. Key improvements include better support for long-running tasks, autonomous workflow management, 25% token reduction, and superior performance on code generation and long-context tasks compared to GPT-5.6 Sol and Opus 5. Available now via Muse Code and Meta Model API at the same pricing as 1.2; max mode launching after security review. Relevant for SMEs using AI-assisted development and automation workflows.