StackAI: Revenue, sale and how it was built

Started small, grew after funding · sold 11 months after launch

Its founders wrote some of the methods that the industry already used to run models cheaply, such as AWQ for 4-bit weights. They turned that research into a paid serving API. They proved the speed on a public benchmark and partnered with a cloud company that needed exactly that speed. Eleven months after its first public post, the partner agreed to buy it.

Solo founder · 2 months after launch, revenue flat

AI coding agents can build a working page or deck, but in the founder's words their visual output often looks generic. Skillry sells finished visual styles, one task per Skill, shows real output before the sale, and adds new Skills almost every day under one subscription. When sales began on 28 September 2026, they held at about US$430 a day for 17 days.

Solo founder · 12 months after launch, revenue falling

It launched in October 2025. By then, Anthropic's Claude Code had made skills, slash commands and subagents a normal way to steer a coding agent. Most developers were still writing their own. A founder who presents themself as a CTO with 18 years of experience sold a tested set as a one-time purchase with a money-back promise. Verified revenue reached US$16,040 in March 2026 and US$82,195 in total, but it fell to under US$2,000 a month by September 2026.

Solo founder · 4 months after launch, revenue falling

Said over US$36K in a monthRecords US$39.6K by end of JulyHeld

It turned a new working habit into a native Mac app. The habit was running several AI coding agents at the same time. The app had voice control and a strong visual style, and it charged once instead of every month. The founder sold it to his own audience through daily live streams, X and a Discord community. Stripe recorded more than three quarters of the revenue in the first seven weeks.

Solo founder · 6 months after launch, revenue growing

The compression engine already existed as a free, open-source Python tool, but it was hard to install. Garm Lucassen packaged it into a desktop app. The app installs with a double click, connects the coding agents by itself, and removes its changes when it quits. The engine's creator suggested that he build it and keep the Headroom name. Developers who hit the usage limits of their AI plans pay a small monthly price to make those limits last longer.

Solo founder · 9 months after launch, revenue falling

It sold a narrow job: run the OpenClaw-style agent for people who do not want to manage a server. The hosting page lists the work it takes over, and TrustMRR shows US$5,403 of verified revenue in March 2026. Revenue then fell to US$271 to US$735 a month from August to October 2026. The business is listed for sale.

Solo founder · 21 months after launch, revenue falling

It puts an AI coding agent where a team already tracks work: the GitHub issue. Nobody has to open a new editor or tool. Assigning the issue starts the work. The output is a normal pull request that the team reviews as usual. The verified revenue shows that this idea alone did not bring many paying customers.

Started small, grew after funding · sold 34 months after launch

Tavily grew because developers adopted it by themselves, according to its founder. Rotem Weiss wrote that all growth was product-led, with no outbound sales and no campaigns. He also wrote that the company began as an open-source experiment.

Started small, grew after funding · 14 months after launch

Running a large model fast needs performance engineers. The founders write that only a few hundred people in the world can deeply optimize accelerator hardware. Wafer tries to do that work with AI agents, on AMD as well as NVIDIA GPUs. It also tries to keep doing it after a deployment goes live, instead of tuning it once.

Solo founder · 27 months after launch, revenue growing

Said US$245K a monthRecords US$263K MRRSaid less than the records

The founder took a twenty-year-old product category with no open-source entry and open-sourced all of it. This gave him millions of Docker downloads and 37,000 GitHub stars without a marketing budget. Revenue stayed small for a year. It multiplied when he turned the product toward people who automate their posting with n8n workflows and, from late 2025, with AI agents. Agents need an API-first scheduler and keep paying because they post without human effort.

Team of 2 to 10 · 16 months after launch, revenue growing

Every team that builds with AI models ends up with several provider accounts, keys, invoices and SDKs. One gateway with open code replaces them, and a developer can read the code before sending traffic through the hosted version. In 2026 the founders added DevPass, a flat monthly price for coding agents. Its allowance is up to three times the price in model usage. The verified monthly receipts grew from US$57,994 in January 2026 to US$249,922 in August 2026; TrustMRR does not split them by product.

Team of 2 to 10 · 30 months after launch, revenue falling

Agencies that resell AI voice agents already have the AI. What they lack is a way to look like a company to thirty clients. They need a branded portal, usage billing and automations. ChatDash sells that layer and prices it per client slot, so it grows with the agency's client list. TrustMRR, reading the company's Stripe account, shows US$602,728 of revenue in total. It shows US$19,893 of monthly recurring revenue from 113 subscriptions on 27 October 2026, about US$176 a subscription. That is a fall of 60% from the best month in the table, November 2025.

Solo founder · 14 months after launch, revenue growing

The founder had made Roblox games for nine years, with 200 million visits on his own games. His launch post on the official Roblox developer forum was read 112,656 times. He launched free, with 1 million tokens a month, and charged US$20 a month for heavy use. Then he added top-ups and a marketplace of tested systems that the AI installs, instead of writing every system from nothing.

Team of 2 to 10 · sold 17 months after launch

Four founders, two of whom had built the drinks-delivery start-up Winelivery, looked for a profession. They wanted one that works with a large, fast-changing body of rules and had not yet adopted AI. They chose Italian accountants and labour consultants. They tested a first version with practitioners and sold monthly subscriptions. In October 2025 TeamSystem, an Italian maker of software for accountants, bought the majority of the company. Its press release said Normo.ai had €1.3 million of revenue in 2025.

Solo founder · 44 months after launch, revenue falling

A studio portrait needs a photographer, a booking and days of waiting. AI SuitUp sold the same result, a photo for LinkedIn or a résumé, for a one-time price from early 2023. The larger packs had a money-back guarantee. It narrowed the offer to one use, professional headshots, and then built a landing page for almost every profession and a version for company teams. Stripe records US$648,649 of payments in total, but only US$35,743 of it in the last 12 months. So most of the money came in 2023, 2024 and 2025.

Team of 2 to 10 · 10 months after launch, revenue flat

The founder had worked as a screenwriter and knew which part of the job is tool work. That part is the page format, and keeping characters and scenes consistent across a long draft. He built the editor around that work and kept the AI in the role of a helper. He says Claude Code wrote all the code. The beta grew through invite codes that users earned by posting about it. Monthly revenue rose from US$5,136 in May 2026 to about US$46,000 in August and in September.

Team of 2 to 10 · 11 months after launch, revenue falling

It took a narrower job than the general AI design tools, mobile apps only, for people who build apps without design skills. The three founders reused what they had learned from four earlier design tools and built it in three weeks. They showed finished designs on X before the launch. Each new Gemini model gave them a better result and a new demo to post.

Solo founder · sold 5 months after launch

It launched in the month that AI models became good enough to write a whole app. It sold to people who cannot program, it charged from day one, and it was sold to a company that already had millions of customers.

Solo founder · sold 5 months after launch

Its result is a before-and-after picture of the user's own face, which a short video shows in seconds. The founder chose TikTok as the channel before he built the app. He then tripled revenue from almost the same installs by moving and testing the paywall with Adapty.

Team of 2 to 10 · sold 27 months after launch

Said over US$350K in totalRecords US$348.5K on StripeHeld

It entered a market that already had about ten AI headshot sites, at a lower price. It won customers through Google search and affiliate writers instead of ads. A US$4,000 order from one company showed that team headshots were the better sale. The founders sold in 2025, when a general chat model began to make similar images.