AI has completely changed the way I operate as a solopreneur, but not in the way people usually assume. It's been a total productive tool.
It does not replace the work, the skill, the experience, or the actual hands on part of what I do. In my case, I build metal sculptures, and AI is not picking up a welder, grinding steel for me, designing a sculpture, working events, or spending hours in the shop trying to meet deadlines.
What it has done is help fill the gaps that normally require an entire team same as OP. Marketing, emails, planning, organizing ideas, product descriptions, event posts, grant language, website copy, customer communication, and keeping all the moving pieces from turning into chaos.
That being said, I try not to ask AI to do anything I could not do myself. For me, that matters because I need to be able to recognize when something is wrong, off base, or just does represent what I am building correctly. AI is only useful when I can still guide it, question it, and make the final call.
For a small business owner trying to build something real without a full staff behind them, AI has become less of a shortcut and more of a support system that helps me stay focused on the work only I can do.
The best part is that it has a decent grasp on all the different elements that go into building a business. It's like having an assistant constantly search for the right answers for you when you ask them a question. You can ask it to give you the straight information clean without all the extra fluff that usually results in a typical search for answers and that saves a ton of time.
I use Grok, Gemini, and ChatGPT. They are all built on similar frameworks and all have the same failures and issues. Chat seems to be the more stable of the three with the better results for what I'm doing. I don't have any AI integrated into any of my tasks just yet, I haven't figured all that out so I use the Chat as a standalone tool.