You asked about AI-Enhanced Learning
Nobody in the register described anything this way.
| Launched | What it was | Today |
|---|---|---|
| 2018-01-01 | YCEdwin Edwin is virtual English tutor - an AI-powered service for learning… · edwin.ai | acquired |
| 2025-06-01 | YCOpennote The notebook that thinks with you. · opennote.com | acquired |
| 2014-01-01 | YCCruise Self-driving cars. · getcruise.com | acquired |
| 2015-01-01 | Paperspace is a cloud platform for building and scaling AI… · paperspace.com | acquired |
| 2018-06-01 | Transforms how grocery stores buy highly perishable foods. · shelfengine.com | acquired |
| 2020-01-01 | Run machine learning models in the cloud · replicate.com | acquired |
| 2014-01-01 | YCTheorem The mission of Theorem is to make credit safe and available. We use… · theoremlp.com | acquired |
| 2016-06-01 | YCCrowdAI CrowdAI is the world's leading no-code platform for vision AI · crowdai.com | acquired |
| 2015-01-01 | YCSigOpt SigOpt is an Optimization-as-a-Service platform that seamlessly tunes… · sigopt.com | acquired |
| 2019-01-01 | Talent AI improving quality of hire · searchlight.ai | acquired |
| 2020-01-01 | YCPowerX AI powered sensors that save energy, water and emissions · powerx.co | acquired |
| 2024-06-01 | YCSepal AI Data Development for Advanced AI · sepalai.com | acquired |
| 2020-06-01 | Humanloop is the LLM evals platform for enterprises. · humanloop.com | acquired |
| 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 |
| 2020-06-01 | We help ML teams improve their models by improving their datasets · aquariumlearning.com | acquired |
| 2021-01-01 | YCPipeBio PipeBio is a SaaS bioinformatics platform to develop antibody drugs. · pipebio.com | acquired |
| 2021-01-01 | Build better computer vision models by building better datasets · segments.ai | acquired |
| 2022-01-01 | YCHypaHub A Cloud-Based Bioinformatics and AI Platform · hypahub.com | acquired |
| 2023-06-01 | The AI-powered risk decision platform · trycatamaran.com | acquired |
| 2018-01-01 | Wearables and AI to predict and prevent sepsis outside the hospital · sepsisscout.com | acquired |
| 2016-06-01 | YCNeoWize NeoWize created a new type of machine learning algorithm and uses it… · neowize.com | acquired |
| 2009-01-01 | YCAirbnb Book accommodations around the world. · airbnb.com | acquired |
| 2007-01-01 | YCTwitch A global community creating the future of live entertainment. · twitch.com | acquired |
| 2016-06-01 | YCMeesho Democratizing internet commerce for everyone in India · meesho.com | acquired |
| 2014-01-01 | YCUnbabel AI-powered Language Operations platform · unbabel.com | acquired |
| 2011-06-01 | The leading online learning platform for technical skills. · codecademy.com | acquired |
| 2011-01-01 | Customer loyalty and payments platform for small businesses. · fivestars.com | acquired |
| 2013-01-01 | IMPORTANT: The original YC founders are no longer involved with this… · teespring.com | acquired |
| 2010-06-01 | YCPresto Digital meets physical for big chain restaurants · presto.com | acquired |
| 2022-01-01 | YCRider Modern parcel delivery for online sellers in Pakistan. · withrider.com | acquired |
| 2017-01-01 | YCUpKeep Mobile-first software for maintenance teams. · upkeep.com | acquired |
| 2018-01-01 | Digitize and Automate Complex Care Workflows · memorahealth.com | acquired |
| 2012-01-01 | Car Repairs, Reinvented:a. Mechanic comes to your home or work to fix… · yourmechanic.com | acquired |
| 2016-06-01 | YCWorkRamp The All-in-One Learning Platform · workramp.com | acquired |
| 2011-01-01 | Pay what you want for awesome games and other content while giving to… · humble.com | acquired |
| 2019-01-01 | YCPachama Restoring nature to solve climate change. · pachama.com | acquired |
| 2019-01-01 | YCHatch The AI CSR Platform · usehatch.ai | acquired |
| 2014-01-01 | YCGobble Daily meal delivery, personalized to your tastes. · gobble.com | acquired |
| 2021-06-01 | YCMailmodo No-code email marketing platform to send forms & widgets within emails · mailmodo.com | acquired |
| 2015-01-01 | YCLumi Packaging for online brands. · lumi.com | acquired |
| 2019-01-01 | YCForage Online job simulations for companies to train, and then hire, students · theforage.com | acquired |
| 2023-01-01 | YCStackAI The Enterprise AI Transformation Platform · stackai.com | acquired |
| 2020-06-01 | YCWarmly, [Acquired by HubSpot in 2026] Autonomous sales platform to auto-email… · warmly.ai | acquired |
| 2016-06-01 | YCBurrow A design brand creating innovative, award winning furniture. · burrow.com | acquired |
| 2015-01-01 | Data Versioning, Data Pipelines, and Data Lineage · pachyderm.com | acquired |
| 2014-06-01 | The system of record for government affairs. · govpredict.com | acquired |
| 2018-06-01 | YCRegology AI Agents for Regulatory Compliance · regology.com | acquired |
| 2022-01-01 | YCSkyLink Travel Management Meets AI · tryskylink.com | acquired |
| 2017-06-01 | We help kids stay curious by creating better explanations. · mystery.org | acquired |
| 2011-01-01 | YCMailgun Email API service. · mailgun.net | acquired |
| 2012-06-01 | YCSoylent Soylent is a simple, nutritious, and affordable food that possesses… · soylent.com | acquired |
| 2010-01-01 | the best loyalty and retention marketing partner for CMOs. · 500friends.com | acquired |
| 2012-01-01 | YCTilt Mobile crowdfunding: The easiest way to collect, fundraise, and sell… · tilt.com | acquired |
| 2012-06-01 | Acquired by Carlyle. Edtech and other technology · studyedge.com | acquired |
| 2019-06-01 | YCCuboh We help restaurants manage their online orders. · cuboh.com | acquired |
| 2019-06-01 | YCVendr The AI negotiation agent to help you save money on SaaS. · vendr.com | acquired |
| 2017-06-01 | Headstart uses Machine Learning to help companies decide on who to… · headstart.io | acquired |
| 2019-06-01 | On demand fuel delivery service in India · mypetrolpump.com | acquired |
| 2020-06-01 | YCQuell Get fit fighting your way through a fantasy world. · playquell.com | acquired |
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.