Someone asked me recently how I run multiple brands, a content calendar, client work, and a product pipeline without a team. My answer was embarrassing in the best way: I have a very good AI stack and zero shame about using it constantly.
I'm not a tech bro with a VC runway. I'm one person with a lot of ideas, a strong opinion about coffee, and a business that has to actually function on a Tuesday when I'm the only one in the room. If you're a solo founder trying to figure out which AI tools are actually worth your time — not the hype, just the honest answer — this is that post.
First, What I Mean by a "Stack"
A stack isn't just a list of apps you downloaded and forgot about. It's a set of tools that talk to each other, fill specific roles, and reduce the number of decisions you have to make from scratch. Think of it like a small, very efficient crew — each tool has a job. Nobody's overlapping. Nobody's doing nothing.
The best AI tools for solopreneurs aren't the flashiest ones. They're the ones that fit how your brain actually works and that you'd notice immediately if they disappeared. That's the bar I use when I'm evaluating anything new.
The Core of My Stack
Here's what I actually use, and what I use it for — because that second part matters more than the tool name.
- ChatGPT (GPT-4o): My primary thinking partner. First drafts, brainstorming, rewriting my own rambling voice notes into something structured. I don't use it to replace my voice — I use it to move faster so I can spend more time editing than staring at a blank page.
- Claude (Anthropic): When I need longer-form reasoning or nuanced writing feedback, Claude is where I go. It handles complex prompts really well and doesn't immediately turn everything into a listicle. Refreshing.
- Notion AI: My second brain lives in Notion. The AI layer inside it helps me summarize meeting notes, clean up rough drafts in context, and generate first-pass SOPs without ever leaving my workspace.
- Perplexity: My Google replacement for research. It pulls from real sources and cites them, which means I can actually verify what it's telling me. Wild concept, I know.
- Descript: For video and audio editing. I record a lot of content, and the AI-powered editing tools — especially transcript-based cuts — save an absurd amount of time.
- Canva (with Magic Studio): Fast, on-brand visual content. I have templates set up so the AI assist tools are working inside a system that already knows my aesthetic.
- Zapier + Make: The connective tissue. Automations that move data between tools without me touching them. Not glamorous. Absolutely essential.
How I Actually Use These (Not the Demo Version)
The way people talk about AI tools in demos is rarely how they work in real life. Real life is: you have 45 minutes, you have six things to do, and you need to make a decision.
My actual workflow looks like this: I brain-dump into a voice note or a quick Notion page, run it through ChatGPT or Claude to structure it, edit it heavily so it actually sounds like me, then publish or hand it off to an automation. That's it. There's no magic. There's just a repeatable system I've built up over time — and a willingness to iterate when something stops working.
If you want to see how I think about running multiple projects on a lean setup without a team, I wrote about that specifically here — it gets into the systems layer underneath the tools.
What I Don't Use (Anymore)
Jasper. Lots of one-trick writing tools that promised to do everything and did nothing particularly well. Any tool that required 30 minutes of setup for a single task. I've churned through a lot of AI tools for small business use over the past couple years, and the graveyard is real.
The pattern I noticed: I kept the tools that made me better at what I already do. I dropped the tools that tried to do my job for me. There's a difference, and it matters a lot if you care about your work actually sounding like you.
Building Your Own AI Stack for Founders
Here's my honest advice for anyone trying to build an AI stack for their own founder life: start with one problem, not one tool. What is the thing eating the most time in your week? Find the AI tool that solves that specific thing. Use it until it's boring. Then add the next one.
Stacking tools without a clear use case is just expensive procrastination. I've done it. It doesn't feel like procrastination, which is what makes it sneaky. If you're working through what your actual priorities should be before you automate anything, this post on why your to-do list is lying to you is worth a read first.
The goal isn't to run a business with AI. It's to run a business where AI handles enough of the heavy lifting that you can focus on the parts only you can do. Strategy. Relationships. Creative direction. The things that require you to actually be you.
Everything I build at St. Clair Studios is built on that premise. AI as an extension, not a replacement. A lean setup that punches above its weight class because the systems are smart, not because the headcount is high.
Frequently Asked Questions
What AI tools do solo founders actually use to run a business?
The most commonly used tools among solo founders include ChatGPT or Claude for writing and thinking, Notion AI for knowledge management, Perplexity for research, and automation tools like Zapier or Make to connect everything. The specific mix matters less than having tools that cover communication, content, research, and workflow automation.
Is one AI tool enough, or do I need a full stack?
One tool is a great starting point. Most solopreneurs find that a core AI writing tool plus one automation layer covers 80% of the value. You add more over time as you identify specific gaps — not because more tools means more productivity.
How much do AI tools for small business typically cost?
Most of the major tools have free tiers that are genuinely useful. Paid plans for tools like ChatGPT Plus, Claude Pro, or Notion AI tend to run $10–$25/month each. A functional solo founder AI stack can cost under $100/month total — and usually pays for itself quickly in time saved.
How do I make sure AI doesn't make my content sound generic?
Use AI for structure and speed, then edit aggressively for voice. The more specific your prompts — including context about your tone, audience, and what you're trying to say — the better the raw output. AI gets you to a draft faster. You're still the one who makes it sound like you.
Want the full breakdown? I put together a free AI Tool Stack Guide — the exact tools I use, what I use them for, and how they fit together in a real one-person business. Grab it below.