You asked about Machine Learning
153 people built something like it. 9 are gone.
That is 6% of the ones whose fate we could settle, against 23% across the whole register. 13 were acquired.
| Launched | What it was | Today |
|---|---|---|
| 2016-06-01 | YCScale AI Data-centric infrastructure to accelerate the development of AI · scale.com | still up |
| 2020-06-01 | YCTaktile Transform your decision-making with reliable AI agents in weeks, not… · taktile.com | still up |
| 2021-01-01 | YCEncord The data layer for physical AI · encord.com | still up |
| 2022-01-01 | YCvoize We build the AI companion for nurses, to create time for care. · voize.de | still up |
| 2015-01-01 | Paperspace is a cloud platform for building and scaling AI… · paperspace.com | acquired |
| 2022-01-01 | Compliant-Ready AI for the Enterprise · dynamo.ai | still up |
| 2018-01-01 | PROVEN is using AI, data and personalization to disrupt CPG · provenskincare.com | still up |
| 2022-01-01 | YCLanceDB Open-source, serverless vectordb for production-scale generative AI · lancedb.com | still up |
| 2024-06-01 | YCFINNY AI The organic growth engine for financial advisors · finny.com | still up |
| 2016-06-01 | YCCrowdAI CrowdAI is the world's leading no-code platform for vision AI · crowdai.com | acquired |
| 2022-01-01 | YCSpade Spade is the data and AI platform for modern finance. · spade.com | still up |
| 2025-01-01 | YCMundo AI High Quality Multilingual Training Data for AI Models · mundoai.world | still up |
| 2020-06-01 | Financial data layer for AI-powered finance and accounting · blueonion.ai | still up |
| 2021-06-01 | YCMach9 AI CAD Software for Civil Engineering · mach9.ai | still up |
| 2021-06-01 | The fastest way to ship airtight AI · openlayer.com | still up |
| 2023-01-01 | YC222 the AI social facilitator for offline human to human interactions · 222.place | still up |
| 2016-01-01 | YCRevl AI edited video souvenirs as a service · revl.com | still up |
| 2020-01-01 | YCPowerX AI powered sensors that save energy, water and emissions · powerx.co | acquired |
| 2019-01-01 | Talent AI improving quality of hire · searchlight.ai | acquired |
| 2020-01-01 | YCHandoff AI estimator & agent for remodelers. · handoff.ai | still up |
| 2022-01-01 | LLM for Legal in Brazil · lexter.ai | still up |
| 2020-06-01 | AI-native Operating System for Enterprise Ecommerce Companies · hypotenuse.ai | still up |
| 2023-01-01 | Automating Healthcare Revenue Cycle Management with AI Workforce · combinehealth.ai | still up |
| 2022-06-01 | YCFini Fini | Automate 80% of enterprise support with AI agents · usefini.com | still up |
| 2020-06-01 | Humanloop is the LLM evals platform for enterprises. · humanloop.com | acquired |
| 2018-01-01 | YCEdwin Edwin is virtual English tutor - an AI-powered service for learning… · edwin.ai | acquired |
| 2022-01-01 | Rapid medical data annotation · redbrickai.com | still up |
| 2021-01-01 | Dramatically better search and ads for marketplaces · promoted.ai | acquired |
| 2018-06-01 | YCPhiar We are developing a revolutionary AI-powered augmented reality… · phiar.net | acquired |
| 2024-09-01 | YCArchil The high-performance file system that connects AI to data · archil.com | still up |
| 2025-09-01 | Agentic AI for Society Builders · brickanta.com | still up |
| 2020-01-01 | YCAtmo Ultra-precise AI weather forecasting. · atmo.ai | still up |
| 2022-06-01 | YCLamin Open data platform for traceable, multimodal AI · lamin.ai | still up |
| 2020-01-01 | YCSprintAI AI-led platform for inventory and fulfillment optimization · getsprint.ai | gone |
| 2019-06-01 | Vibe code games. · rosebud.ai | still up |
| 2023-01-01 | YCBoundary The programming language for AI · boundaryml.com | still up |
| 2021-06-01 | Plan and review AI generated code · vibekanban.com | still up |
| 2023-01-01 | Generative AI for protein design · diffuse.bio | still up |
| 2020-01-01 | YCOda AI Agent for Home Design · odastudio.ai | still up |
| 2024-01-01 | Applied AI Data Research Lab Encoding Human Expertise into Machines… · useocular.com | still up |
| 2022-01-01 | YCFlike Flike's AI crafts sales emails that convert · flike.app | gone |
| 2023-06-01 | YCGuac AI-powered forecasting & replenishment for grocery · guac.com | still up |
| 2023-06-01 | YCSubsets AI-driven Retention Automation for subscription media businesses. · subsets.com | still up |
| 2025-06-01 | Analyze any footage, without training a model · ondeckai.com | still up |
| 2022-01-01 | YCPloomber Heroku for AI · ploomber.io | gone |
| 2025-01-01 | YCOsmosis Reinforcement Learning (RL) for AI Agents · osmosis.ai | still up |
| 2022-01-01 | YCHypaHub A Cloud-Based Bioinformatics and AI Platform · hypahub.com | acquired |
| 2024-06-01 | YCAnglera AI-Powered Product Data Enrichment · anglera.com | still up |
| 2021-06-01 | AI-designed Affinity Reagents · medium.bio | still up |
| 2024-09-01 | YCMetreecs AI-powered demand forecasting for retail · metreecs.com | still up |
| 2023-01-01 | Developing long-lasting drug formulations 50% faster · persist-ai.com | still up |
| 2025-09-01 | YCAllus AI Transforming manufacturing with our next-gen Vision Foundation Model · allus.ai | still up |
| 2026-06-01 | Network for Physical AI Data Business · deepreach.ai | still up |
| 2023-06-01 | The AI-powered risk decision platform · trycatamaran.com | acquired |
| 2021-06-01 | Computer vision that makes the industrial workplace, safer · protex.ai | still up |
| 2025-01-01 | YCNitrode Frontier AI research to advance game development · nitrode.com | still up |
| 2018-01-01 | iPhone-based driver monitoring for commercial fleets. · observantai.com | still up |
| 2022-01-01 | YCToko Learn English by speaking with an AI · tokotutor.com | still up |
| 2022-01-01 | YCStarling AI enabling digital urine diagnostics in the home · starlingmedical.com | still up |
| 2021-06-01 | Building Gong.io for offline retail. · outloud.ai | gone |
How this compares
Older launches have had longer to die, so this slope is expected. A year that broke it would mean something is wrong with the checking.
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.