You asked about AR
137 people built something like it. 22 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 |
|---|---|---|
| 2022-11-16 | notion.so | moved |
| 2022-11-02 | photoai.com | still up |
| 2022-11-30 | thegist.ai | gone |
| 2022-11-23 | scispace.com | unverified |
| 2022-01-10 | databar.ai | still up |
| 2022-11-03 | picso.ai | still up |
| 2022-10-27 | snipd.com | still up |
| 2022-10-27 | astria.ai | still up |
| 2022-06-14 | prettysmart.co | still up |
| 2022-10-03 | exactbuyer.com | gone |
| 2022-10-31 | explainpaper.com | still up |
| 2022-06-25 | vidboard.ai | still up |
| 2022-10-31 | toolbox.nesslabs.com | still up |
| 2022-05-17 | urzas.ai | still up |
| 2022-01-06 | mailshake.com | still up |
| 2022-06-29 | octie.ai | still up |
| 2022-06-18 | ugurkilci.com | still up |
| 2022-06-08 | contentbot.ai | still up |
| 2022-03-31 | lisnclips.app | gone |
| 2022-06-28 | snackable.ai | gone |
| 2022-05-16 | ortto.com | still up |
| 2022-01-05 | nonnfts.com | gone |
| 2022-01-01 | YCvoize We build the AI companion for nurses, to create time for care. · voize.de | still up |
| 2022-04-28 | visily.ai | still up |
| 2022-01-04 | huski.ai | still up |
| 2022-06-18 | pixelz.ai | still up |
| 2022-10-17 | aragorn.ai | still up |
| 2022-04-05 | aiseo.ai | still up |
| 2022-10-05 | juice.ai | unverified |
| 2022-04-14 | encord.com | still up |
| 2022-07-12 | pixieapp.co | moved |
| 2022-05-26 | iplan.ai | still up |
| 2022-05-03 | mypath.ai | gone |
| 2022-10-30 | promptmakr.com | unverified |
| 2022-11-24 | doodleai.darraghoriordan.com | gone |
| 2022-01-01 | YCRDash AI Powered Construction Management Software · rdash.io | still up |
| 2022-09-08 | tattoosai.com | still up |
| 2022-04-14 | ouija.attejuvonen.fi | still up |
| 2022-01-01 | Using AI to help dementia patients age at home · craniometrix.com | still up |
| 2022-01-01 | Plug-and-play AI platform with sensors and dashboards that makes… · iotflows.com | still up |
| 2022-03-10 | prepform.com | still up |
| 2022-01-01 | YCArintra Enterprise-grade AI for revenue assurance · arintra.com | still up |
| 2022-11-24 | article.audio | still up |
| 2022-01-01 | Unleash the potential of genomic medicine using AI · whitelabgx.com | still up |
| 2022-01-01 | Compliant-Ready AI for the Enterprise · dynamo.ai | still up |
| 2022-01-01 | YCLanceDB Open-source, serverless vectordb for production-scale generative AI · lancedb.com | still up |
| 2022-08-21 | atomiclife.app | moved |
| 2022-01-01 | YCCuracel AI-Powered Infrastructure for Insurance & Healthcare · curacel.co | still up |
| 2022-01-01 | YCGlep AI-Native Spend platform built for Real Estate businesses · glep.com | still up |
| 2022-01-01 | YCSpade Spade is the data and AI platform for modern finance. · spade.com | still up |
| 2022-01-01 | Virtualizing brick-mortar infrastructures of clinics w/ generative AI · ankr.us | still up |
| 2022-01-01 | YCKorrAI Traceable AI for billion-dollar infrastructure. · korrai.com | still up |
| 2022-06-01 | YCTruva Sell more. Grind less with AI agents. · truva.ai | acquired |
| 2022-08-22 | blog.maxg.io | still up |
| 2022-01-01 | YCKaso AI group purchasing for restaurants · kaso.ai | still up |
| 2022-06-01 | YCAxle AI-native clearinghouse for insurance · axle.insure | still up |
| 2022-01-01 | Agentic AI for buy-side firms · inferedge.com | still up |
| 2022-09-09 | w.ai | still up |
| 2022-01-13 | jonahsussman.net | still up |
| 2022-01-01 | LLM for Legal in Brazil · lexter.ai | still up |
How this compares
Y Combinator reports its own outcomes, including acquisitions. The other two are judged by asking the domain, so they are not measured the same way and are never averaged together.
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.