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ProjectX is a Y Combinator company in the Spring 2026 batch. Its directory entry describes it as: Agent native workspace for heavy parallel workflows on the web. The founders listed are Rounak Adhikary (Founder/CEO), Bishal Karmakar (Founder/CTO), Sourya Majumder (Founder/COO) (Y Combinator directory entry, March 14, 2026).
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New accelerator entry · 2026-03-14 · the record
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Every computer ever made forces you to do one thing at a time. One cursor. One keyboard. One Hardware. One app in focus. Fifty years. Nobody questioned it. We did. We started over. We built InfinityOS, a fundamentally new computer OS on the cloud from ground up. Infinity runs every app in its own independent computer -- own GPU, own input, own environment. Windows and Linux in the same session. Humans and agents working side by side. No concurrency ceiling. Cold start in seconds. runs on the browser of any device..
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