Muse Spark: Scaling Towards Personal Superintelligence (ai.meta.com) AI

Meta introduced Muse Spark, a multimodal reasoning model designed to support tool use, visual “chain-of-thought,” and multi-agent orchestration. The company says it will be available on meta.ai and via a private API preview, with “Contemplating mode” rolling out gradually. Meta also outlines how it improved compute efficiency through changes to pretraining, reinforcement learning, and test-time reasoning, and it reports safety evaluations showing strong refusal behavior in high-risk scientific domains.