The AI Stack That Actually Runs a Solo Business in 2026

There are hundreds of AI tools. You don't need most of them.

Here's the actual stack that runs a lean solo business — what each tool does, what it replaces, and what it costs.

The core four

1. ChatGPT Plus ($20/month)

The workhorse. Used for: first drafts of everything, summarizing documents, answering questions about uploaded files, building custom GPTs for repetitive tasks.

Not used for: research you'll cite publicly, anything requiring real-time data.

Replace it with: Claude Pro if you're doing long-document work or complex reasoning tasks. Different strengths.

2. Make.com ($9–16/month)

The connective tissue. Automates the handoffs between tools — when X happens in one app, Y happens in another.

Used for: sending Stripe data to Google Sheets, pushing form submissions to your email list, generating a draft when a new Typeform response comes in.

Not used for: anything requiring judgment. Make.com moves data. ChatGPT makes decisions.

3. Notion AI (included in Notion $10/month)

Your workspace that thinks. Used for: project docs, client notes, meeting summaries, building the prompt library that makes everything else faster.

The underrated part: Notion AI can answer questions about your own workspace. Ask it "what's the status of the Rodriguez project" and it reads your notes and tells you.

4. Otter.ai or Fireflies.ai (Free–$10/month)

Meeting transcription and summary. Join the call, stop taking notes. After the call, you have a summary, action items, and the full transcript.

Combine with ChatGPT for a 5-minute post-call workflow that produces client updates, internal notes, and follow-up emails simultaneously.

The supporting tools

Perplexity Pro ($20/month): For research that needs citations. More reliable than ChatGPT for recent facts.

Canva + Magic Studio (free or $15/month): For visuals when you don't have a designer. AI image generation + templates.

Zapier (free–$20/month): Alternative to Make.com, better for simple one-step automations and integrations with tools Make doesn't have.

What this stack replaces

A part-time executive assistant (email drafts, meeting notes, scheduling support)
A copywriter for first drafts
A data-entry person for report building

Total cost: $55–85/month. One hour of an EA runs $25–50.

What it doesn't replace

Judgment. Client relationships. Creative direction. Strategic decisions.

Those are yours. Everything else is negotiable.

A side-by-side of the core options

There is no single right stack. The right one depends on what kind of work you do most. Here is how the main contenders compare for the four most common solopreneur use cases.

| Use case | Best primary tool | Backup option | Why | | --- | --- | --- | --- | | Long-document drafting and reasoning | Claude Pro ($20/mo) | ChatGPT Plus | Claude handles 200k-token contexts and produces more disciplined long-form output. | | Quick task help and general workflows | ChatGPT Plus ($20/mo) | Claude Pro | Custom GPTs, faster iteration, broader plugin ecosystem. | | Cited research and current facts | Perplexity Pro ($20/mo) | ChatGPT with web search | Citations are first-class; less hallucination risk on dated facts. | | Connecting tools and automating handoffs | Make.com ($9–16/mo) | Zapier ($20+/mo) | Make is more visual and significantly cheaper for multi-step scenarios. |

If you only pay for one thing this year, pay for the one that matches your most painful weekly task.

How to actually choose between Claude and ChatGPT

This question comes up in every conversation, so it is worth being direct.

Pick ChatGPT if you are doing many small tasks per day, building custom GPTs for repeatable workflows, or working primarily in conversational back-and-forth. The interface is faster for small jobs, the custom GPT ecosystem is mature, and the iteration loop on a 200-word piece is shorter.

Pick Claude if you are reviewing long documents, writing long-form content, working on complex code, or running multi-step reasoning where you want the model to think through tradeoffs before committing. Claude's longer context and more deliberate output style pays off there.

The honest answer for most solopreneurs is that you eventually pay for both. They are $20 each. The combined cost is less than one hour of a virtual assistant per month. If you cannot justify $40 a month for the two most-used tools in your business, the problem is not the tools.

The common mistakes when building an AI stack

I have watched a lot of people try to put a stack together and stall. The patterns repeat.

Subscribing to everything at once. A new tool a week is not a strategy. Pick the one your biggest time drain matches, use it daily for a month, then add the next one when you have a clear reason. Most stalled stacks are stalled because the operator never built a habit with any single tool.

Choosing tools by review-site scores. Affiliate-stuffed roundups optimize for commissions, not for your use case. The question that matters is "does this match the way I already work?" not "is this tool rated 4.7 on G2?"

Refusing to commit to one automation platform. Zapier and Make are not competitors in the same way Claude and ChatGPT are. They are platforms with overlapping coverage, and learning two of them at once is wasteful. Pick the one that works for your most common integration, learn it well, and only adopt the second if a critical workflow forces it.

Treating the tools as the goal. The stack is plumbing. The output is the point. If the stack is impressive and the business is not shipping more work, the stack is wrong.

When this exact stack will not fit you

The stack above assumes a few things. Knowledge work that involves writing, summarizing, and communicating. Solo or small-team scale. Comfort with picking up new software. A willingness to spend a couple of hundred dollars a year on tooling.

If your business is mostly in-person services, mostly retail, or mostly physical product fulfillment, the AI value is still real, but the stack shifts. You want less Claude and more Zapier hooks into your point-of-sale or scheduling system. You may not need a separate research tool at all.

If you are running a multi-person agency, the calculus changes again. You start to need shared prompt libraries, audit logs, and team licenses. Notion Enterprise plus Claude Team becomes worth the price.

If your work is regulated — finance, healthcare, legal — the question is which of these tools is appropriate for your data, not which is fastest. Default to enterprise tiers with data-use opt-outs, and treat anything you would not paste into a public forum as off-limits to consumer plans.

The stack in this post is the lean solo version. Adjust accordingly.

Your first 30 minutes

Pick one tool from the core four. Pay for it. Open it. Do one real piece of work in it today — not a tutorial, not a demo, not a scratch prompt. A real client email, a real meeting summary, a real first draft.

You will know within an hour whether it earns a permanent spot in your daily rotation. If it does, schedule one hour next week to set up the next tool. If it doesn't, cancel and try a different one from the list.

A solo business doesn't need a perfect stack. It needs a working one — and the only way to get there is to use the tools instead of comparing them.