Hackernews posts about YC S21

YC S21 is the 2021 class of Y Combinator, a well-known startup accelerator and investor that provides funding and support to early-stage companies.

1. Launch HN: Runtime (YC P26) – Sandboxed coding agents for everyone on a team (www.runtm.com)
   103 points by gustrigos 26 days ago | 30 comments
2. Launch HN: Intuned (YC S22) – Build and run reliable browser automations as code (intunedhq.com)
   117 points by fkilaiwi 9 days ago | 57 comments
3. Linear CEO Responds to Corgi (YC S24) CEO on Grindmaxxing (twitter.com)
   7 points by hbcdbff 16 days ago | discuss
4. Show HN: Trainy, an AI team that fires you (www.trainy.me)
   3 points by patrickmds 27 days ago | discuss
5. Ask HN: What's KugelAudio's (YC P26) Moat?
   4 points by fxtentacle 15 days ago | 1 comments
6. Launch HN: Exa (YC S21) – The web as a database
   412 points by willbryk about 1 year ago | 133 comments
7. Launch HN: GPT Driver (YC S21) – End-to-end app testing in natural language
   129 points by cschiller over 1 year ago | 82 comments
8. Launch HN: ASim (YC S21) – Mobile app that generates mobile apps
   90 points by dli123 about 1 year ago | 61 comments
9. Launch HN: Indy (YC S21) – A support app designed for ADHD brains (www.shimmer.care)
   85 points by christalwang 5 months ago | 93 comments
10. Show HN: Exa (YC S21) – embeddings search agent with >20x recall than Google (websets.exa.ai)
    28 points by willbryk over 1 year ago | 4 comments
11. Ask HN: Why is Meticulous (YC S21) still hiring to eliminate E2E tests?
    4 points by resiros almost 2 years ago | 2 comments
12. Show HN: Numscript, a declarative language to model financial transactions (playground.numscript.org)
    202 points by superzamp over 1 year ago | 47 comments
13. Show HN: Open-source distributed quantum compute network (quip.network)
    11 points by cadillion 3 months ago | 10 comments
14. Show HN: A mobile app that generates mobile apps in 30 secs
    10 points by dli123 over 1 year ago | 4 comments
15. Show HN: ASim – generate functional mobile apps instantly on your phone (asim.sh)
    10 points by dli123 almost 2 years ago | discuss
16. Show HN: ASim – generate usable mobile apps instantly (asim.sh)
    5 points by dli123 over 1 year ago | discuss
17. Show HN: Syntro.io (syntro.io)
    4 points by maomorales 10 months ago | discuss
18. Sharing Economy Thrived with Consumers but Lags in Corporate World. Until Now
    2 points by Stephen_Roamr over 1 year ago | 1 comments
19. Show HN: YC Network Search – Use natural language to find YC people (sena.so)
    3 points by recmend 8 months ago | 1 comments
20. Launch HN: Cactus (YC S25) – AI inference on smartphones (github.com)
    123 points by HenryNdubuaku 9 months ago | 63 comments
21. Launch HN: Airhart Aeronautics (YC S22) – A modern personal airplane
    738 points by n_ermosh almost 2 years ago | 615 comments
22. Launch HN: Sorcerer (YC S24) – Weather balloons that collect more data
    365 points by tndl almost 2 years ago | 172 comments
23. Launch HN: Silurian (YC S24) – Simulate the Earth
    338 points by rejuvyesh almost 2 years ago | 141 comments
24. Launch HN: Haystack (YC S24) – Visualize and edit code on an infinite canvas (github.com)
    328 points by akshaysg over 1 year ago | 173 comments
25. Launch HN: Skyvern (YC S23) – open-source AI agent for browser automations (github.com)
    327 points by suchintan over 1 year ago | 74 comments
26. Launch HN: Undermind (YC S24) – AI agent for discovering scientific papers
    292 points by jramette almost 2 years ago | 126 comments
27. Launch HN: Stack Auth (YC S24) – An Open-Source Auth0/Clerk Alternative (github.com)
    280 points by n2d4 almost 2 years ago | 141 comments
28. Launch HN: Hyprnote (YC S25) – An open-source AI meeting notetaker
    270 points by yujonglee 11 months ago | 180 comments
29. Launch HN: Morph (YC S23) – Apply AI code edits at 4,500 tokens/sec
    217 points by bhaktatejas922 11 months ago | 185 comments
30. Launch HN: Roame (YC S23) – Flight search engine for your credit card points
    192 points by zman0225 almost 2 years ago | 130 comments
31. Launch HN: CodeViz (YC S24) – Visual maps of your codebase in VS Code
    189 points by LiamPrevelige almost 2 years ago | 89 comments
32. Launch HN: Deepsilicon (YC S24) – Software and hardware for ternary transformers
    189 points by areddyyt almost 2 years ago | 79 comments
33. Launch HN: Bitrig (YC S25) – Build Swift apps on your iPhone
    188 points by kylemacomber 10 months ago | 122 comments
34. Launch HN: Continue (YC S23) – Create custom AI code assistants (hub.continue.dev)
    178 points by sestinj about 1 year ago | 110 comments
35. Launch HN: AgentMail (YC S25) – An API that gives agents their own email inboxes
    169 points by Haakam21 5 months ago | 169 comments