What AI-related initiative delivered the most value this year, and what specifically made it succeed?

We had several AI initiatives in 2025, but CoPilot for M365 and Git is where we saw the most value in the Everyday AI space. I would have to say that a comprehensive and ongoing training campaign really helped to drive adoption, and ROI. We focused a considerable effort on the office integrations, similar to Bob and Anna-Lisa and now we are shifting our training focus to Agent development using Copilot Studio and AI Foundry.

I would say for our firm it was the integration of Co-Pilot. Similar to Bob's response below, we use it for research as well as how to's and editing. Having it embedded in Word, PowerPoint and Excel is a definite efficiency gain!

The interesting, if not quirky, thing about AI is that you can pose this question about AI to AI, and you're going to receive a relatively unbiased answer. Start a "conversation" with several AI platforms and see what comes back.

If you're asking for my personal opinion/experience, I use AI primarily for research, which has been a true time-saver for me.