Ask Rosie is actually shutting down right now: https://www.askrosie.ai/

I would love to learn more about their challenges as I have been working on an Excel AI add-in for quite some time and have followed Ask Rosie from almost their start.

That they now gone through the whole cycle worries me I‘m too slow as a solo building on the side in these fast paced times.

That seems to be true for any startup that offers a wrapper to existing AIs rather than an AI on their own. The lucky ones might be bought but many if not most of them will perish trying to compete with companies that actually create AI models and companies large enough to integrate their own wrappers.

its a great time for your ai excel add-in to start getting acquired by a claude competitor though