According to @satyanadella, he demoed in Bengaluru an app he built for deep research that uses multiple models and decision frameworks, describing the approach as a chain of debate, source: Satya Nadella on X, Dec 11, 2025. He added that the next stop is Copilot, and the post did not disclose timelines, product names, or pricing, source: Satya Nadella on X, Dec 11, 2025.