AI micro-SaaS products that make money
Micro-SaaS means a small, focused software product, usually built by one or two people, that charges a subscription. Many of the best AI examples are thin, useful layers on top of models like GPT or Claude: chatbots trained on a website, better chat interfaces, AI headshots, design tools. Each case below links to the founder's own write-up with revenue figures.
9 cases · earnings are as each source states and are not guaranteed.
Photo AI: AI headshots and photoshoots
Pieter Levels runs an AI photo generator as a one-person business built on a single large PHP file.
Laid-off engineer's AI product for a niche industry
A solo founder used severance to go full-time on an AI product that replaces manual work in a niche, building it largely with agents.
Selling AI business-idea validation reports
Two founders built a form that turns a business idea into a ChatGPT-generated validation report, sold it for $39 per report, and later sold the business.
Sleek: AI mobile app design
Three friends built an AI mobile-app design tool in three weeks and grew it with content, no paid ads.
GenAI side project monetized on a whim
In an HN thread about earning $1M from personal projects, a commenter says an early GenAI side project took off once a friend convinced them to charge for it.
Buildpad: AI co-pilot for building products
Two brothers built an app that gives AI memory across the build process and marketed it only by building in public on X.
Solo AI video tool for creators
A solo builder's third AI tool, a video-editing alternative, grew mainly through an academy and email campaigns.
TypingMind: a better ChatGPT interface
An indie hacker built a chat UI for ChatGPT over a weekend for himself, then raised the price with every update.
SiteGPT: chatbots trained on your website
A solo founder launched an AI chatbot builder on Twitter; it went viral, then hit HN and Product Hunt in the same week.
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