AI business case studies: revenue and exits — 2/2
AI business cases
25–41 of 41
HeadshotPro: $100K ARR in 14 Days, Then Up to $300K MRR — Examining the AI Headshot Business
HeadshotPro, an AI headshot service built by Dutch developer Danny Postma, hit $100K ARR just 14 days after launching in March 2023, and has since climbed to $300K MRR ($3.6M ARR). 14 million photos generated, 190,000 customers. The acquisition-channel numbers are public too — over $50K a month from affiliates alone.
LinkedIn shut down their free extension. Four people rebuilt it in 4 weeks and hit $62,000 MRR three months after relaunch
A free Chrome extension called Kleo, used by 60,000 people, received a cease-and-desist from LinkedIn. Its four co-founders rebuilt it as a paid SaaS in four weeks. Three months after relaunch, MRR reached $62,000 — $82,000 combined with a sister product.
Stella: MVP in 2 Days, $350K/Month in 2 Months — an AI App Built by a Solo Creator With 4 Million Followers
AI visualization app Stella hit $300K/month (about ¥45M) two months after launch and $350–360K by interview time, from a 2-day MVP. 12,000 paying customers and 200,000+ downloads. Building a distribution network of 1.2M on Instagram and 2.8M on TikTok before the product mattered.
Designers from Pixar, Meta, and Google, four people, $10,000/month — first sale within a month for this AI-adoption consultancy
Chat Agency AI, founded January 2026, does $10,000/month (about ¥1.5M). Its founders are designers with backgrounds at Pixar, Meta, and Google, and the first sale landed within a month of founding. Early clients include Global Citizen, Cisco, and Strava.
Formula Bot: An Excel-Formula AI Built During Parental Leave Hit $23,000/Month — Zero Lines of Code, $5,000 in Marketing
David Bressler, from Florida, built an Excel formula-generating AI on Bubble.io during summer 2022 parental leave. It spread on Reddit and made its first sale within 5 minutes of launching paid access; monthly revenue is now $23,000 (about ¥3.45M), on total marketing spend of $5,000.
Contentellect: Buy Out Your Co-Founder, Grow Revenue 3.6x in Two Years, Then Sell Before AI Arrives — Three Moves
SEO content agency Contentellect bought out its co-founder in 2021 and grew revenue from $250K to $900K in two years. Seeing that "AI will break this industry," the founder sold to listed holding company Onfolio for $850K (2.5x EBITDA) in April 2023. A case study in knowing when to run.
Superpower ChatGPT: Built in 3 Days, Free for 9 Months — 420K Downloads and 350K Newsletter Subscribers
Saeed Ezzati launched an extension he built in 2-3 days during ChatGPT's very first week. He gave it away completely free for 9 months, building a base of 420K downloads, 150K weekly users, and a 350K-subscriber newsletter before introducing a paid tier — reaching five-figure MRR.
Six AI videos, ¥153,030 in the first month — one video with 4.22 million views drove two-thirds of TikTok monetization revenue
An AI video creator posted six videos in TikTok's first monetization month and earned ¥153,030, with one 4.22-million-view video generating about two-thirds of it.
Bannerbear: 8 Months at $0, 7 Failures, 2 Pivots — the Complete Record of Reaching $10K MRR
Jon Yongfook's image-generation API Bannerbear reached $10,455 MRR in January 2021 — after 7 failed products in a 12-startups-in-12-months challenge, Previewmojo plateauing at $400, and an API pivot that churned existing customers. He has published the numbers and tactics of every phase.
Avatar AI Made $150K in a Week — So Why Did Levels Shut It Down Himself? A Record of Walking Away from a Winning Hand
Pieter Levels's Avatar AI rode the early AI-avatar boom to roughly $150K in one week — the fastest money he had ever made. Yet instead of chasing the boom, he called it "too cheap — I want to solve real problems" and pivoted to the utility-focused PhotoAI. A rare record of quitting in the middle of success.
PhotoAI at $132K a Month, Zero Employees, 37,000 Commits a Year: Dissecting Pieter Levels' "Solo-Run" Playbook
AI photo generator PhotoAI earns $132K a month (about ¥19.8M), and Pieter Levels' entire portfolio tops $228K a month—run with zero employees. 37,000 commits a year, two-second deploys, GPT-4-automated moderation. Levels openly admits only 4 of his 70 projects hit. Here's what's actually behind his operation.
TypingMind: Quit at $600 MRR, Then $45K/Month — Every Decision in Tony Dinh’s Build-Sell-Release Loop
Vietnamese indie developer Tony Dinh quit his job at $600 MRR. TypingMind, shipped right after the ChatGPT API opened, made $1,000 on day one, $10,000 in 10 days, and later $45K/month. Meanwhile, when the Twitter API crisis hit Black Magic, he decided within two weeks to sell it for $128K. Every offensive and defensive call is public.
¥9.27M a year on note: from ¥38,500 in January to ¥1M a month, backed by 830,000 social followers
An AI-tool creator with 81,000 YouTube subscribers, 580,000 on Instagram, and 170,000 on TikTok made ¥9.27M on note in 2025. Starting from ¥38,500 in January, we break down the year that shifted him toward the recurring-revenue model of a ¥980/¥1,980-a-month membership with 478 members.
Setter AI: $10K MRR in a Year and a Half — a Prototype Sold Two Weeks After the Idea
Josef Büttgen's AI meeting-setter SaaS "Setter AI" sold a prototype within two weeks of conception and reached $10K/month (about $120K/year, roughly ¥18M) in eighteen months. His previous product spent a year with nothing to show for it.
Hit on the Fifth Try: an AI Design Tool at $10K/Month in Six Weeks with Zero Ad Spend
After four design tools that didn't land, a three-person team narrowed focus to mobile app design and hit $10K MRR within six weeks of launch, with zero ad spend.
Raised $20K before writing a line of code. The YouTube-script AI that reached $62K/month in 18 months
Gil Hildebrand pre-sold 50 lifetime licenses for $20K before building anything, then grew YouTube-script AI Subscribr to $62K/month in 18 months.
9,345 AI-generated images uploaded to Adobe Stock: the full record of reaching 878 downloads and $589/month (~¥95,000) over 9 months
A freelancer restarted AI-generated stock photo sales in June 2025 and, over 9 months, reached 9,345 cumulative uploads, 878 monthly downloads, and $589.59/month (~¥95,000). The turning point came in month five: an experiment where he resubmitted rejected images unchanged, tweaking only the tags and title — and about 50% got approved.