You asked about Artificial Intelligence
48 people built something like it. 7 are gone.
That is 16% of the ones whose fate we could settle, against 23% across the whole register. 3 were acquired.
| Launched | What it was | Today |
|---|---|---|
| 2021-01-01 | YCPibit.ai The fastest path from submission to better decisions. · pibit.ai | still up |
| 2021-06-01 | YCTavus Building the human layer of AI · tavus.io | still up |
| 2021-06-01 | YCAnakin One API to get clean data from any website for your AI agents at scale · anakin.io | still up |
| 2021-06-01 | YCVerihubs AI-powered Deepfake Detection · verihubs.com | still up |
| 2021-06-01 | YCSwipe Super AI Accountant for SMBs · getswipe.in | still up |
| 2021-01-01 | YCMindee AI Document Understanding API · mindee.com | still up |
| 2021-01-01 | YCPopl Your AI GTM platform for In-Person Events · popl.co | still up |
| 2021-01-01 | YCTreinta Software and AI tools for SMBs in the US and Latin America · treinta.co | still up |
| 2021-01-01 | Physical AI for Warehouses and Factories · fluxauto.ai | still up |
| 2021-01-01 | YCVapi Voice AI for developers. · vapi.ai | still up |
| 2021-06-01 | YCSully.ai Autonomous team of AI agents that runs the entire hospital operations · sully.ai | still up |
| 2021-06-01 | Track & Boost Your Brand’s Visibility in AI Search · writesonic.com | still up |
| 2021-01-01 | YCauthzed Authorization Infrastructure securing AI at OpenAI, Zoom, & more · authzed.com | still up |
| 2021-01-01 | AI-powered customer service for startups · cloudhumans.com | still up |
| 2021-06-01 | YCSecoda Secoda is the AI layer for your Analytics · secoda.co | still up |
| 2021-06-01 | The fastest way to ship airtight AI · openlayer.com | still up |
| 2021-06-01 | AI Agents for Data Operations · oneschema.co | still up |
| 2021-06-01 | YCMine The AI personal finance company. · usemine.com | gone |
| 2021-06-01 | YCAbstra Automate finance operations with Python and AI · abstra.io | still up |
| 2021-01-01 | YCarnata AI workers for the logistics industry. · arnata.com | still up |
| 2021-06-01 | AI native mobile testing. · mobileboost.io | still up |
| 2021-06-01 | Affogato AI — Your Agent for instant TikToks, Reels, and ads. · affogato.ai | still up |
| 2021-01-01 | YCWaydev Engineering intelligence for AI transformation · waydev.co | still up |
| 2021-06-01 | YCZensors AI to understand and automates the physical world · zensors.com | still up |
| 2021-01-01 | YCTaoFi The financial layer for decentralized AI · taofi.com | acquired |
| 2021-06-01 | YCDailybot Make all team work visible — people and AI agents · dailybot.com | still up |
| 2021-01-01 | Thought-to-Language AI Models · mindportal.com | gone |
| 2021-06-01 | Plan and review AI generated code · vibekanban.com | still up |
| 2021-01-01 | AI workers that book, scribe, code, interpret, and answer clinicians · rejoyhealth.com | still up |
| 2021-01-01 | YCRoutine AI-native all-in-one workspace for startups · routine.co | still up |
| 2021-06-01 | Never code alone. · squire.ai | gone |
| 2021-01-01 | Cut your writing time by 40% with AI-powered autocomplete · compose.ai | still up |
| 2021-06-01 | AI-designed Affinity Reagents · medium.bio | still up |
| 2021-01-01 | YCVenu AI Meet qualified leads in person by automating conference production · venu3d.com | still up |
| 2021-06-01 | Mobile app for CPG brands to connect to millions of stores globally · milkyway.ai | gone |
| 2021-06-01 | Tiktok for fashion - where designers show their work + build traction · revery.ai | gone |
| 2021-06-01 | AI-powered equity research software · hudson-labs.com | still up |
| 2021-01-01 | AI Assistant for Customer Support · firstsupport.ai | still up |
| 2021-06-01 | YCVogent Build Voice AI Agents · vogent.ai | acquired |
| 2021-01-01 | YCCodeball AI-Powered Code Review · codeball.ai | gone |
| 2021-01-01 | YCHumance AI that keeps complex construction projects on schedule. · humance.tech | still up |
| 2021-06-01 | YCSentiyen Conversational AI assistants using your knowledge · sentiyen.com | still up |
| 2021-06-01 | Sales AI that helps revenue teams move faster and close more deals. · firstquadrant.ai | gone |
| 2021-01-01 | YCParsagon AI to track and analyze public policy · parsagon.io | still up |
| 2021-06-01 | YCMentum AI-Powered Assistant for Procurement and Strategic Sourcing · getmentum.com | acquired |
| 2021-01-01 | YCSupadock AI workers for logistics operations · getsupadock.com | still up |
| 2021-01-01 | YCCyble Cyble - World’s First Intelligence-Driven, AI-Native Security… · cyble.com | still up |
| 2021-06-01 | YCConfido AI-enabled financial automation and intelligence for CPG Brands · confidotech.com | still up |
How this compares
The register re-probes every domain it holds. Some that answered last month stop answering. We send that list — what went quiet, and what it was — once a month. Nothing else.
How this was made. Show HN entries are every post from 2021 to 2023 with at least five points that linked to its own domain; code hosts and free hosting are excluded, because a repository outlives the effort behind it. Product Hunt entries needed 100 votes — a far higher bar, so they are the promoted top slice rather than a like-for-like sample. Both are judged by asking the domain whether it still answers: gone means it no longer resolves, refuses the connection, serves a parking page, or says plainly that it shut down. An HTTP error is not counted as gone — a server answering 404 is one somebody still pays for, and an audit of 25 gone-calls found two such sites alive with only a moved homepage. Y Combinator entries use the status YC publishes itself, which is why only those can say acquired. Squatted domains — a lapsed name now serving somebody else's site — are not detected, so these figures run slightly low.