Y Combinator

@ycombinator

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San Francisco, CA

ycombinator.com

Joined February 2010

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Y Combinator
@ycombinator
7h
Congrats to @AndersForslund1 and @heartaerospace (W19) on the first flight of X1! It's the largest battery-electric aircraft ever flown, with a 106-foot wingspan and a takeoff weight over 25,000 pounds. The entire 27-minute flight ran on about $5 worth of electricity. Next
Heart Aerospace
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Heart Aerospace
Y Combinator
@ycombinator
Aug 12
Robots can already fold laundry, make espresso, clean kitchens, and assemble things. The harder problem is getting them to do those tasks reliably, for long periods of time, without a human babysitting them. At Startup School 2026, @physical_int cofounder @chelseabfinn explains
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Y Combinator
@ycombinator
Aug 12
Congrats to @adijayaprakash, @adityamaru27, @aayush_shah15, and @useblacksmith (W24) on their $45M Series B at a $550M valuation! AI tools mean developers are writing more code than ever, but all of it still has to be checked before it reaches production. Blacksmith builds the
Y Combinator
@ycombinator
Aug 11
In this episode of Full Stack, @circlebackai co-founder Ali Haghani (@iAligator) gives us a look at how he runs the company with AI. From coding agents and automated ops to using Circleback as a company brain, he shares the tools, workflows, and systems that have changed how he
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Y Combinator
@ycombinator
Aug 10
Last November, @steipete was annoyed that there was no good way to talk to his coding agents from his phone, so he built one himself. A few months later, OpenClaw exploded into one of the biggest open source AI projects in the world, with nearly 3,000 contributors and a peak of
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