Meta Platforms shares rose more than 4% in U.S. premarket trading and closed at $613.62 on September 3, up approximately 4%, after the company introduced Muse-related AI products. The older report identified the September 2 release as Muse Spark 1.3, an AI coding and agentic workflow platform available through Muse Code and the Meta Model API, while the newer report described Muse as a personal AI agent for handling users’ routine tasks. Muse Spark 1.3 reportedly delivers comparable engineering outcomes with about 20% fewer tool calls and 25% fewer tokens than version 1.2, without changing pricing. Bank of America maintained a Buy rating and $810 price objective, while Bernstein kept an Outperform rating and $800 target. Meta’s broader AI investment case also includes proprietary MTIA processors, with Broadcom expecting three generations through 2027 and volume shipments beginning in the fourth quarter of 2026.