Waleed
@typingwala
cto @simstudioai
Fun fact: @typingwala and I started working on @simstudioai 3 weeks before applying to YC. We applied an hour before the deadline on a whim. We couldn’t believe it when we got in. These stories are more common than you think. Go apply! @ycombinator
Applications for the YC Fall 2025 batch are now open! Apply by August 4: ycombinator.com/apply
Mental fam
Announcing Sim v0.3 Templates, knowledge bases, realtime collaboration, and more just dropped 🔻
Bayes' Theorem
Any human (much less VC) that doesn't update their thesis when new market data comes in is a moron.
Ran the example from the @xai docs to test out live search grounding for grok-4, and it took 20m 5s to respond. If you solely relied on Twitter and tech news, you'd think they hit it out of the park, but if you even go so far as running the provided examples, everything falls…
You wouldn't believe how fast we are moving just because @shadcn /ui gives us the complete creative freedom and makes things easier on the development side Huge ❤️
📍NYC: we’re hiring software engineers (in-person). 💥 huge market 👥 cracked team 📈 tons of customers 🛠️ endless valuable things to build real revenue. real tech. real ownership. real outcomes. DM me if you’re curious.
We hired a mariachi band to celebrate 5k github stars but the team was too locked in
Announcing Sim v0.3 Templates, knowledge bases, realtime collaboration, and more just dropped 🔻
Today, I am starting a new chapter on my life. I am joining @simstudioai as their Founding Designer - and soon relocating to San Francisco to build stuff with coolest people I've ever met. I’ll be leading design across the product, brand, and future vision. Can’t wait to show…
Great meeting the @simstudioai team. I miss the energy in SF. Thanks for having me Amir and Waleed!
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After 12+ years, 25 batches, and the privilege of advising >1,000+ startups, I’m transitioning to Partner Emeritus at Y Combinator. YC changed my life. I’m grateful to the thousands of founders who trusted me with their journeys, my fellow YC partners and teammates, and to Paul,…
THAT’S A WRAP! Thanks for having us @ycombinator TUNE. IN. @tbpn