Mark Zuckerberg just broke his three‑year silence on Twitter with only his third tweet in 13 years — announcing Meta’s new AI model, Muse Spark 1.1. Muse Spark 1.1 is positioned as an industry‑competitive agentic and coding model. On multiple agentic evaluations, it reportedly rivals GPT‑5.5 and Opus‑4.8, putting Meta directly into the race with the most advanced systems. Alongside the release, Meta is opening apublic preview of the Meta Model API, giving developers direct access to Muse Spark 1.1 for experimentation and integration. This marks a rare public move from Zuckerberg on X, and a significant escalation in the AI model competition. #Meta #MuseSpark #Zuckerberg #TechNews #follow