You asked about Productivity
23 people built something like it. 3 are gone.
That is 15% of the ones whose fate we could settle, against 23% across the whole register. 3 were acquired.
| Launched | What it was | Today |
|---|---|---|
| 2024-01-01 | YCOnyx Open Source AI Chat · onyx.app | acquired |
| 2024-06-01 | Capitol: the sovereign operating system for intelligence. · capitol.ai | still up |
| 2024-01-01 | AI-powered meeting notes and automations · circleback.ai | still up |
| 2024-06-01 | YCKenley AI Agents for Advisory & Financial Services. · kenley.ai | still up |
| 2024-06-01 | Workspace for your AI Agents, Build any Workflow. · dench.com | still up |
| 2024-01-01 | YCAlai Create high quality presentations quickly using AI · getalai.com | still up |
| 2024-06-01 | YCAnara AI for researchers · anara.com | still up |
| 2024-01-01 | YCQuivr AI-powered auto-resolutions and reply suggestions for customer… · quivr.app | still up |
| 2024-06-01 | YCPatched Reliable AI for Regulated Ops · patched.codes | still up |
| 2024-06-01 | YCcamfer Building the world’s first AI mechanical engineer. · camfer.dev | gone |
| 2024-06-01 | YCProxis The platform for enterprise AI agent automations, starting with email. · proxis.ai | still up |
| 2024-09-01 | AI for life sciences documents · raycaster.ai | still up |
| 2024-06-01 | Open-source AI coworker with memory · rowboatlabs.com | still up |
| 2024-09-01 | The AI Assistant for Gmail · freestyle.ai | still up |
| 2024-01-01 | Conversational AI surveys with intelligent follow-up questions · getaftercare.com | still up |
| 2024-01-01 | YCBilanc AI-Powered Engineering Productivity · bilanc.co | still up |
| 2024-01-01 | YCSpeck AI Notetaker that automates all your admin work · speck.sh | acquired |
| 2024-01-01 | YCLumetric The AI Analyst For Deal Teams · lumetric.ai | acquired |
| 2024-09-01 | YCMelder AI formulas and document support for Microsoft Excel · melder.io | still up |
| 2024-01-01 | Your team’s AI powered communication tool · atpatchwork.com | gone |
| 2024-01-01 | The world's best presentation editor, powered by AI. · thorntale.com | gone |
| 2024-01-01 | AI agents for insurance claims · basepilot.com | still up |
| 2024-06-01 | YCZuni AI agents for high-value professional work · zuni.app | 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.