You asked about AI-Enhanced Learning
356 people built something like it. 4 are gone.
That is 1% of the ones whose fate we could settle, against 23% across the whole register. 4 were acquired.
| Launched | What it was | Today |
|---|---|---|
| 2025-01-01 | AI-driven exam prep · alice.tech | still up |
| 2025-01-01 | AI tutor starting with maths and science · excellence-ai.com | still up |
| 2025-01-01 | YCEdexia AI Teacher Assistant for Grading Essays · edexia.com | still up |
| 2025-09-01 | YCParrot TikTok for language learning · parrotapp.com | still up |
| 2025-06-01 | YCOpennote The notebook that thinks with you. · opennote.com | acquired |
| 2025-09-01 | The first platform where families can create AI cartoons in minutes · pixleyai.com | still up |
| 2025-01-01 | AI tutors for exam prep · miyagilabs.ai | still up |
| 2025-01-01 | YCMundo AI High Quality Multilingual Training Data for AI Models · mundoai.world | still up |
| 2025-06-01 | YCidler Hill-climb any benchmark, for any model, in any domain. · idler.ai | still up |
| 2025-09-01 | Agentic AI for Society Builders · brickanta.com | still up |
| 2025-09-01 | Your Company Brain · hyperspell.com | still up |
| 2025-06-01 | YCGolpo Create Whiteboard Explainer Videos with AI from a Prompt or Document · video.golpoai.com | still up |
| 2025-06-01 | Analyze any footage, without training a model · ondeckai.com | still up |
| 2025-09-01 | YCAllus AI Transforming manufacturing with our next-gen Vision Foundation Model · allus.ai | still up |
| 2025-01-01 | YCOsmosis Reinforcement Learning (RL) for AI Agents · osmosis.ai | still up |
| 2025-01-01 | Reasoning Fine-Tuning · trainloop.ai | still up |
| 2025-01-01 | YCNitrode Frontier AI research to advance game development · nitrode.com | still up |
| 2025-09-01 | Training Data for Recursive Self-Improvement · hillclimb.com | still up |
| 2025-06-01 | AI powered brokerage reducing residential rental commissions in NYC… · spotlight.realty | still up |
| 2025-06-01 | YCLilac We sell GPUs. · getlilac.com | still up |
| 2025-06-01 | Robots, parts & RL envs & evals - delivered in 48 hrs / pickup in SF. · roboticscenter.ai | still up |
| 2025-09-01 | YCThesis Humanoid robots · thesislabs.ai | still up |
| 2025-06-01 | YCMonte Continual Learning for Agents · trymonte.ai | still up |
| 2025-09-01 | Large-scale real-world robot & human data for embodied AI · cortexrobot.ai | still up |
| 2025-06-01 | Waymo for excavators · useflywheel.ai | still up |
| 2025-09-01 | YCSylvian Specialized AI Agents. · sylvian.ai | gone |
| 2025-01-01 | AI Agents that automate enterprise software processes · agentin.ai | still up |
| 2025-06-01 | Physics-based foundation models for CAD optimization. · topological.com | still up |
| 2025-01-01 | AI for air traffic control · enhancedradar.com | still up |
| 2025-09-01 | YCAmika Infra to build your own software factory · amika.dev | still up |
| 2025-01-01 | YCBezel Digital AI humans that model clothes for e-commerce brands. · trybezel.com | still up |
| 2025-01-01 | YCSpott AI-native ATS/CRM for recruiting firms · spott.io | still up |
| 2025-01-01 | Applied research lab curating data solutions for foundation model… · afterquery.com | still up |
| 2025-06-01 | YCGETASAP AI-Native Fresh Produce Logistics · getasap.us | still up |
| 2025-01-01 | YCMastra The Javascript framework for building AI agents, from the Gatsby devs · mastra.ai | still up |
| 2025-01-01 | YCHarper AI-native commercial insurance brokerage · harperinsure.com | still up |
| 2025-06-01 | YCFlai We Bring Customers to Your Dealership · useflai.com | still up |
| 2025-09-01 | YCUplane Replace marketing agencies with AI · uplane.com | still up |
| 2025-06-01 | YCKERNEL Crazy fast, open source infra for AI agents to use the Internet · kernel.sh | still up |
| 2025-09-01 | YCBolna AI Voice AI to enable India's next billion · bolna.ai | still up |
| 2025-01-01 | Agents for Accelerated Clinical Trial Design · delineate.pro | still up |
| 2025-01-01 | AI hiring platform powered by expert recruiters · contrario.ai | still up |
| 2025-01-01 | YCMercura AI Quote and Order Automation for Distributors & Manufacturers · mercura.ai | still up |
| 2025-06-01 | Secure frontier AI for government & adjacent knowledge work · vulcan.ai | still up |
| 2025-01-01 | YCCifrato AI Accountant for Accounting Firms · cifrato.ai | still up |
| 2025-01-01 | YCConntour AI to monitor thousands of security cameras. · conntour.com | still up |
| 2025-06-01 | YCF2 The AI platform for private markets investors · f2.ai | still up |
| 2025-09-01 | YCLexi AI Operating System for Legal Teams · getlexi.io | still up |
| 2025-01-01 | AI powered operating system for distributors and OEMs · salespatriot.com | still up |
| 2025-01-01 | YCHUD Platform for building RL environments and evals · hud.ai | still up |
| 2025-01-01 | AI for insurance verification & billing at dental clinics · toothy.ai | still up |
| 2025-06-01 | YCSolva Automates insurance claims and stops incorrect payouts · solvatechnology.com | still up |
| 2025-09-01 | YCSemble The all-in-one software for integrators. · sembleai.com | still up |
| 2025-01-01 | YCCalltree Enterprise-grade AI support reps for call centers · calltree.ai | still up |
| 2025-01-01 | YCWeave AI to understand and then route engineering work · weaveos.com | still up |
| 2025-06-01 | YCFreya Voice AI for Enterprises · freyavoice.ai | still up |
| 2025-01-01 | YCBindwell Discovering new pesticides with AI · bindwell.ai | still up |
| 2025-01-01 | AI voice and texting agents · leapingai.com | still up |
| 2025-01-01 | YCAthenaHQ Be the Answer in AI Search - AI SEO across SEO, GEO & AEO · athenahq.ai | still up |
| 2025-09-01 | YCAmera Automating claims processing workflows for health insurance payers. · amerahealthsolutions.com | 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.