You asked about SaaS
52 people built something like it. 6 are gone.
That is 12% of the ones whose fate we could settle, against 23% across the whole register. 1 were acquired.
| Launched | What it was | Today |
|---|---|---|
| 2024-01-01 | YCModel ML AI Workspace for Financial Services. · modelml.com | still up |
| 2024-01-01 | YCPointOne AI Time Platform for Law Firms · pointone.com | still up |
| 2024-01-01 | YCAlex Alex is the AI recruiter for hiring great people. · alex.com | still up |
| 2024-01-01 | YCRespan Self-driving observability, evals, and gateway for AI agents · respan.ai | still up |
| 2024-01-01 | AI Inference Platform for Drug Discovery · tamarind.bio | still up |
| 2024-06-01 | AI powered ERP for Construction · merlinai.co | still up |
| 2024-09-01 | YCCekura Voice AI and Chat AI agents: Testing and Observability · cekura.ai | still up |
| 2024-01-01 | YCTopo All-in-one AI platform for outbound sales · topo.io | still up |
| 2024-06-01 | YCZeit AI The autonomous data engineer for the mid-market · zeit-ai.com | still up |
| 2024-06-01 | YCDistro The AI co-pilot for sales reps at industrial wholesale distributors. · distro.app | still up |
| 2024-06-01 | YCCoval Simulation & Evaluation that scales voice and chat AI agents · coval.dev | still up |
| 2024-01-01 | YCGetCrux AI Creative Strategist · getcrux.ai | still up |
| 2024-06-01 | Freight bill audits, AP, AR automation for freight brokers with… · lighthouz.ai | still up |
| 2024-06-01 | YC&AI Collaborative workspace for patent litigators · tryandai.com | still up |
| 2024-06-01 | YCAnglera AI-Powered Product Data Enrichment · anglera.com | still up |
| 2024-06-01 | YCPlanbase AI workforce management for healthcare · joinplanbase.com | still up |
| 2024-06-01 | YCLaminar Understand why your AI agent breaks. Iterate fast to fix it. · laminar.sh | still up |
| 2024-01-01 | YCAndy AI Faster clinical documentation for home health nurses · with-andy.com | still up |
| 2024-06-01 | YCHeroUI The UI framework for AI agents and developers to build beautiful apps. · heroui.com | still up |
| 2024-06-01 | AI Property Manager for Airbnb & Short-Term Rental Hosts · prohost.ai | still up |
| 2024-06-01 | Faster, more profitable background checks with AI · superunit.com | still up |
| 2024-06-01 | YCGauge Gauge helps you get recommended and implemented by AI. · withgauge.com | still up |
| 2024-09-01 | YCSymphony Voice AI sims for next-gen employee training · getsymphony.co | still up |
| 2024-06-01 | YCSeals AI AI Employees for Wholesalers & Distributors · titanio.ai | still up |
| 2024-01-01 | The AI Labor Company · brainbaselabs.com | still up |
| 2024-06-01 | YCRemade AI-native canvas for creative workflows. · remade.ai | acquired |
| 2024-06-01 | YCAffil.ai AI Affiliate Network For Financial Companies · affil.ai | still up |
| 2024-06-01 | YCRentFlow The AI infrastructure for cash-flow-aligned business rent · therentflow.com | still up |
| 2024-06-01 | YCMagiCode A Reliable AI Frontend Engineer · magicode.ai | still up |
| 2024-06-01 | YCProxis The platform for enterprise AI agent automations, starting with email. · proxis.ai | still up |
| 2024-09-01 | YCRelvy AI AI powered debugging notebooks for incident response · relvy.ai | still up |
| 2024-01-01 | Conversational AI surveys with intelligent follow-up questions · getaftercare.com | still up |
| 2024-09-01 | AI for life sciences documents · raycaster.ai | still up |
| 2024-06-01 | YCQuetzal Simple, LLM-first translation and internationalization for software · getquetzal.com | still up |
| 2024-06-01 | AI-powered settlement for financial securities · tradeflowai.com | still up |
| 2024-01-01 | The world's best presentation editor, powered by AI. · thorntale.com | gone |
| 2024-06-01 | Open source AI copilot that knows your company's code and its context · storia.ai | still up |
| 2024-06-01 | YCTivara The AI workforce for medical groups · tivara.com | still up |
| 2024-01-01 | YCClarum AI agents for private market diligence, monitoring, and reporting · clarum.ai | still up |
| 2024-06-01 | AI document creation and data management for clinical trials · baselinetrials.com | gone |
| 2024-06-01 | AI medical summaries in minutes · riskangle.com | gone |
| 2024-06-01 | YCRescript AI for Legal & Public Policy Teams · rescript.ai | still up |
| 2024-09-01 | YCGalini Compliance guardrails-as-a-service for AI applications · galini.ai | still up |
| 2024-06-01 | YCwinfunc ai-native security engineering for mission critical codebases · winfunc.com | still up |
| 2024-09-01 | The AI Security Engineer to Find and Fix Vulnerabilities · gecko.security | still up |
| 2024-01-01 | Your team’s AI powered communication tool · atpatchwork.com | gone |
| 2024-01-01 | Copilot for radiologists · radmate.ai | gone |
| 2024-01-01 | YCSaga AI Voice Agents for Healthcare Operations · usesaga.ai | still up |
| 2024-06-01 | YCPalmier Video editor built for AI · palmier.io | still up |
| 2024-06-01 | YCPre The AI accountability agent for startup founders · buildwithpre.com | gone |
| 2024-06-01 | ideate.xyz is an AI-powered 3D art suite on the web · ideate.xyz | still up |
| 2024-09-01 | AI Data Center Design · archilabs.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.