Prateek Jannu
Founder of Coasty, The computer-use agent that doesn't break on real software. We will…
Company
Prateek Jannu is listed as a founder of Coasty. Coasty is a computer use agent that does real work inside softwares, companies already run. New web apps, old desktop tools, the legacy systems nobody wants to touch. You hand it a workflow and it owns the outcome. Most agents demo well and break the moment they hit real software. They get 18 steps out of 20 right, misclick once, and everything after is garbage. Coasty catches when it goes off track and fixes itself mid-task instead of starting over. It handles the messy parts, benchmarks never show. Permission dialogs, surprise pop-ups, a modal that steals focus, a page that loads slow. When a vendor pushes an overnight update and moves half the menus, brittle scripts break by morning. Coasty reads the screen instead of recording clicks, so it adapts and keeps going. It also checks its own output and leaves a time-stamped trail you can replay. We won't pretend it gets every task right. Nothing automating this work does. What matters is what happens when something breaks. It catches the mistake, fixes what it can, and flags what it can't so a person can step in. Nothing fails quietly. That's what lets a team trust it on the work where a silent error gets someone fired. We scored 82% on OSWorld, which puts us among the most reliable agents out there. Reliability is the whole product, not a feature.
Founder traction evidence
Public posts and activity attributed directly to this founder.
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We're live on YC S26! Getting into YC was hard. Finding housing in SF? Somehow harder. The real demo day is Craigslist. coasty[dot]ai Nitish Kovuru
We're live on YC S26! Getting into YC was hard. Finding housing in SF? Somehow harder. The real demo day is Craigslist. coasty[dot]ai Nitish Kovuru
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Coasty founder YC S26 announcement
Founder Prateek Jannu said Coasty is now in Y Combinator S26 and described pushing computer-use for customers, developers, and enterprises.
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why we're in @ycombinator enterprise rpa breaks every time a screen changes. and half of you are still clicking through sops by hand in 2026. we built @coastyai to fix this. an agent that reads the screen and just does the work. 85.6% on osworld. got a broken bot or a manual Show more
why we're in @ycombinator enterprise rpa breaks every time a screen changes. and half of you are still clicking through sops by hand in 2026. we built @coastyai to fix this. an agent that reads the screen and just does the work. 85.6% on osworld. got a broken bot or a manual...
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You can now run both your tesla and your computer on autopilot using @coastyai , to whoever is stuck in traffic, happy 4th of july! Run your computer on autopilot using coasty[dot]ai
You can now run both your tesla and your computer on autopilot using @coastyai , to whoever is stuck in traffic, happy 4th of july! Run your computer on autopilot using coasty[dot]ai
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Have a fresh landing page for @coastyai , any feedback would be great and yes we have the best computer use API, MacroHard where? Nitish Kovuru
Have a fresh landing page for @coastyai , any feedback would be great and yes we have the best computer use API, MacroHard where? Nitish Kovuru
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One prompt spawned a swarm of 6 computer-use agents. Each one: its own machine, its own browser, its own job application. They coordinate across machines in real time, you watch the swarm tree grow live. #1 OSWorld (82%). Beats OpenAI (74%). Beats Claude (75%). jobs applied. No Show more 0:01 / 1:11
One prompt spawned a swarm of 6 computer-use agents. Each one: its own machine, its own browser, its own job application. They coordinate across machines in real time, you watch the swarm tree grow live. #1 OSWorld (82%). Beats OpenAI (74%). Beats Claude (75%). jobs applied. No...
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State of the art for Computer-Use coming out soon! Claude Mythos level computer-use but 70% cheaper and no export controls. This is just the start. Save this for later!
State of the art for Computer-Use coming out soon! Claude Mythos level computer-use but 70% cheaper and no export controls. This is just the start. Save this for later!
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Claude Code remote-control and this <3. Is it just me?
Claude Code remote-control and this <3. Is it just me?