According to Satya Nadella on X, Microsoft introduced Critique, a multi-model deep research system inside Microsoft 365 Copilot that coordinates multiple models to generate optimal responses and structured reports. As reported by Microsoft’s CEO, the system lets Copilot orchestrate different foundation models for tasks like synthesis, evidence gathering, and ranking to improve accuracy and completeness in enterprise research workflows. According to Nadella’s announcement, Critique targets use cases such as competitive analysis, policy reviews, and due‑diligence summaries where cross‑checking sources and multi‑step reasoning drive quality outputs. For businesses, this implies higher trust, auditability, and time savings in knowledge-heavy processes across Word, Teams, and SharePoint, as noted in the video shared by Nadella.