You asked about AI
326 people built something like it. 41 are gone.
That is 14% of the ones whose fate we could settle, against 23% across the whole register. 33 were acquired.
| Launched | What it was | Today |
|---|---|---|
| 2023-01-01 | YCPylon The Agentic Support Platform purpose-built for B2B. · usepylon.com | still up |
| 2023-01-01 | YCNumeral The AI-native sales tax solution. · numeral.com | still up |
| 2023-06-01 | YCCampfire The AI Native ERP for the fastest growing companies. · campfire.ai | still up |
| 2023-01-01 | YCAvoca AI-powered Sales Agent for Service-Based Industries · avoca.ai | still up |
| 2023-06-01 | Intelligence that runs your operations. · happyrobot.ai | still up |
| 2023-01-01 | YCWarp AI-native Employee Management Platform for High-Growth Companies · warp.co | still up |
| 2023-01-01 | YCHadrius Automating Securities Compliance · hadrius.com | still up |
| 2023-06-01 | End-to-end content, learning, & deal intelligence for B2B sales teams · letter.ai | still up |
| 2023-06-01 | YCBland AI The enterprise platform for AI phone calls · bland.com | still up |
| 2023-01-01 | YCStackAI The Enterprise AI Transformation Platform · stackai.com | acquired |
| 2023-01-01 | YCOnshore AI for corporate tax · onshore.com | still up |
| 2023-06-01 | YCLangdock The all-in-one AI platform for companies. · langdock.com | still up |
| 2023-06-01 | AI patent drafting, prosecution, litigation and more for legal teams. · solveintelligence.com | still up |
| 2023-06-01 | Digital-native home painting franchise · craftwork.com | still up |
| 2023-06-01 | YCVetRec AI Scribe for veterinarians. Saving time and improving patient care. · vetrec.io | still up |
| 2023-01-01 | YCResend Email for developers · resend.com | still up |
| 2023-01-01 | YCPirros AI Platform for Architects and Engineers · pirros.com | still up |
| 2023-06-01 | B2B debt collection powered by AI agents · agentcollect.com | still up |
| 2023-01-01 | AI-based full stack observability platform · middleware.io | still up |
| 2023-01-01 | YCVooma Automation platform for logistics · vooma.ai | still up |
| 2023-01-01 | AI-powered care for seniors with chronic disease · kivohealth.com | still up |
| 2023-01-01 | YCSalient AI Servicing for Auto Lenders · trysalient.com | still up |
| 2023-06-01 | YCHyLight Unmanned airships for inspecting our critical assets · hylight.aero | still up |
| 2023-01-01 | YCPlayAI Our mission is to make Voice AI accessible and useful to all. · play.ai | acquired |
| 2023-06-01 | AI-native operations for the banks · bretton.com | still up |
| 2023-01-01 | Automate data-driven slide decks and documents with AI · rollstack.com | still up |
| 2023-06-01 | Revenue Activation Platform · hyperbound.ai | still up |
| 2023-06-01 | YCGiga AI Support Agent for Enterprises. · giga.ai | still up |
| 2023-06-01 | AI Operating System for Private Market Investors · vectorshift.ai | still up |
| 2023-01-01 | YCTruewind AI-Powered Accounting · truewind.ai | still up |
| 2023-01-01 | YCPeeba Risk-free wholesale for retailers across Southeast Asia · peeba.com | gone |
| 2023-06-01 | YCOutset AI-powered user interviews · outset.ai | still up |
| 2023-06-01 | Claims infrastructure for African health insurance · edencaremedical.com | still up |
| 2023-06-01 | YCCercli AI powered HR and Recruitment for people teams · cercli.com | still up |
| 2023-01-01 | YCYuma AI The AI Support Agent for Ecommerce · yuma.ai | still up |
| 2023-01-01 | YCExtend Production-ready document processing · extend.ai | still up |
| 2023-01-01 | YCGovEagle AI for Government Contractors · goveagle.com | still up |
| 2023-01-01 | YCClueso Create beautiful videos & docs for any product or process in minutes · clueso.io | still up |
| 2023-01-01 | YC222 the AI social facilitator for offline human to human interactions · 222.place | still up |
| 2023-06-01 | TurboTax for Medicaid · fortunahealth.com | still up |
| 2023-06-01 | YCkapa.ai The fastest way to build AI assistants on technical content · kapa.ai | still up |
| 2023-01-01 | YCMetal Metal is an AI-driven operating system for fundraising · metal.so | still up |
| 2023-06-01 | YCStrada AI agents that run insurance operations · getstrada.com | still up |
| 2023-01-01 | AI-Powered Super Mentor for Test Prep · superkalam.com | still up |
| 2023-06-01 | YCBolto AI Powered All-In-One Payroll, HR + Recruiting · bolto.com | still up |
| 2023-06-01 | YCReadily AI Compliance Platform for Healthcare Organizations · readily.co | still up |
| 2023-01-01 | YCFloworks Hire the best AI Sales employees | AI SDR | AI RevOps | AI EA · floworks.ai | still up |
| 2023-01-01 | YCFlower Train AI on distributed data · flower.ai | still up |
| 2023-06-01 | YCElyos AI AI Customer Service Agents for trades and field services · elyos.ai | still up |
| 2023-01-01 | YCVector Advertising for the new internet · vector.co | still up |
| 2023-01-01 | YCloopfour Workflow automation, without AI hallucinations. · loopfour.com | still up |
| 2023-06-01 | AI enabled marketplace matching trucks with jobs · fleetworks.ai | still up |
| 2023-01-01 | YCLangfuse Open source LLM engineering platform · langfuse.com | acquired |
| 2023-06-01 | YCTiptap The open-source document editor for humans and AI agents. · tiptap.dev | still up |
| 2023-06-01 | Tech-enabled heat pump contractor that cuts costs by 60% · electricair.io | still up |
| 2023-06-01 | YCFlint Personalized learning built for schools · flintk12.com | still up |
| 2023-06-01 | YCNumen Engineering a future without cancer deaths. · numen.com | still up |
| 2023-01-01 | YCInkeep Build AI Agent teammates and automations in code or no-code · inkeep.com | still up |
| 2023-06-01 | YCAccend AI agents for commercial underwriting at banks and fintechs · withaccend.com | still up |
| 2023-01-01 | YCMetal The AI context platform for private capital. Everything your firm… · metal.ai | 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.