Has model selection been removed from Microsoft 365 Copilot?

Hi, I understand the concern. For business use, it is much easier to trust the output when you know what kind of model behavior you are getting.

From what I have seen, Microsoft 365 Copilot generally behaves more like a managed service with automatic routing than a plain model picker. Features such as "Think Deeper" or "Deep Analysis" may select a different reasoning path for that request, but that does not always mean the UI will keep showing a fixed model name afterward.

I would not rely on Reddit screenshots or model-name guesses for governance decisions. The best places to watch are Message Center, the Microsoft 365 roadmap, and official Copilot release notes. In the meantime, I would treat Copilot output as automatically routed and validate it based on task criticality, especially for legal, financial, security, or customer-facing work. A clear Microsoft statement on current model-selection behavior would definitely help admins set expectations.