AI products you can build with a free, open-source stack
Every week our reels take an AI product a real company is making money with, and show the open-source tools you could build your own version on. Here is every one of them: the tools and their licences, the money maths, who to sell it to, and the reel.
- 07Reel · Nov 4, 2026
AI image generator API
An image generation API that apps, shops and agencies call to create product shots, ads and artwork, billed per image.
fal raised $1.3 billion at a $16 billion valuation selling AI image generation to apps, and Midjourney makes $200M+ a year without taking investor money.
- Qwen-Imagefree
- Claudepaid
- A rented cloud GPUpaid
Example mathsAbout 2 cents an image. 100,000 images a day across your customers is $2,000 a day.
- 06Reel · Nov 4, 2026
Private ChatGPT for companies
A ChatGPT the company owns: hosted for them, connected to their email, Drive and Slack, and sold per seat for less than ChatGPT Team.
Companies pay about $25 a seat a month for ChatGPT. A private version with the same chat, their own data and their own controls can be sold for $12 a seat.
- LibreChatfree
- Claudepaid
- MCP connectorsfree
Example mathsOne client with 800 seats at $12 a seat is $9,600 a month.
- 05Reel · Nov 2, 2026
AI employee for one niche
An AI worker with its own computer that answers emails, sends invoices and books appointments for one kind of business while the office sleeps.
Meta bought Manus, an AI employee with its own computer, for about $2 billion after it reached roughly $100M a year selling to small businesses.
- Claudepaid
- OpenClawfree
- Lightpandafree
Example maths$99 a month from 300 offices is $29,700 a month.
- 04Reel · Oct 29, 2026
AI receptionist
A voice agent that answers every call, books appointments and answers questions in a natural cloned voice, day and night.
Front desks miss calls every day, and every missed call is a lost booking. An AI receptionist sold for $300 a month pays for itself with one saved appointment.
- Chatterboxfree
- Whisperfree
- LiveKitfree
- Claudepaid
Example maths100 clients at $300 a month is $30,000 a month.
- 03Reel · Oct 28, 2026
AI support chatbot for one niche
A chatbot trained on a business's own documents that answers customers on their website and hands hard questions to a person.
Chatbase started as one founder's 2-week MVP. It now does $10M+ in annual recurring revenue with 8,000+ paying customers and never took VC money.
- AnythingLLMfree
- Claudepaid
Example maths300 businesses at $49 a month is $14,700 a month.
- 02Reel · Oct 27, 2026
AI app builder for one niche
A Lovable-style tool where a business types what it needs and gets a working app, with templates made for one industry.
Base44 was six months old when Wix bought it for $80 million, and Lovable is valued at $13.3 billion.
- bolt.diyfree
- Dyadfree
- OpenHandsfree
Example maths500 businesses at $29 a month is $14,500 a month.
- 01Reel · Oct 27, 2026
Workflow SaaS for one industry
A small SaaS that fixes one painful workflow for one industry, assembled from open-source parts and finished by an AI coding agent.
Most fast AI SaaS launches are not new technology. They take one painful job in one industry and automate it end to end.
- n8nfree
- Supabasefree
- Claudepaid
Example maths200 businesses at $79 a month is $15,800 a month.
Common
questions.
Straight answers. If yours isn't here, ask on a 20-minute call.
What is this list?+
Every week our reels break down an AI product a real company is making money with, and the free, open-source stack you could build your own version on. This page keeps all of them in one place, newest first, with the tools, the licences, the money maths and the reel.
Is the stack really free?+
The software is. Every tool listed is open source or fair-code, and the licence is shown next to it so you can check commercial use. You still pay for hosting, GPUs and the AI model's API, which for most of these products is a few hundred dollars a month at launch.
Which licences allow commercial use?+
MIT and Apache 2.0 allow commercial use with attribution. AGPL-3.0 does too, but if you change the code and offer it as a service you must publish your changes. Fair-code licences such as n8n's Sustainable Use License allow internal and client use but restrict reselling the tool itself, so read them before you build on them.
Can Axionry build one of these for me?+
Yes. We build AI products on open-source stacks with $0 upfront: each checkpoint is invoiced only after you have seen it working. Book a 20-minute call and bring the niche you want to sell to.
Want one of these built for your niche?
Twenty minutes, straight to the engineer. No sales rep, no deck.