Yang Li

Yang Li

Y Combinator Logo Batch: W23

Achievements

  • Co-founder of Cosine, a Y Combinator W23 startup
  • Built a fully agentic software engineering environment using advanced AI
  • Collaborated closely with OpenAI to develop custom AI models
  • Led a team of 12 in San Francisco focused on AI-driven developer tools
  • Focused on boosting developer productivity with innovative AI solutions
  • Has real-world experience in tech and AI from previous work before Cosine

Meet Yang Li

Yo, you gotta hear about Yang Li. Dude’s the real deal in the startup world, and he’s only getting started. So, here’s the scoop – Yang is a co-founder of Cosine, a Y Combinator startup from the W23 batch, and man, this guy’s been crushing it since day one.

Cosine is all about pushing the boundaries of software engineering with AI. Basically, they’re building a fully agentic environment where AI actually helps developers do their thing faster, smarter, better. It’s not just some hype – they’re working with OpenAI, custom models, the whole nine yards, trying to totally change how coding and building software works. They’re based in SF, got a tight team of 12 folks, and if you peek into what they’re doing, it’s clear Yang is all-in on making AI the ultimate co-pilot for devs. That’s some advanced shit.

What’s wild is, Yang didn’t just jump into this because he thought it was cool. His background includes working at Cosine before jumping into the startup scene, so he’s got this real-world experience with tech and AI. Co-founding Cosine with Alistair Pullen and Sam Stenner shows he’s got the hustle and vision to team up with the best and build something that’s actually gonna shake up the industry.

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But here’s what’s really telling about Yang – his process screams motivation. The guy’s not just playing around; he’s out here trying to solve real problems with modern tech. He sees the possible of AI to change the game and jumped right into it, no bullshit. It’s about pushing the limits, building tools that actually matter, and making a dent in the universe. That’s what startup life is about, and Yang lives it.

Bottom line – Yang Li’s the kind of founder you wanna watch. He’s got the vision, the experience, and the fire to build something that’s not just cool tech, but actually useful. He’s all about boosting developer productivity with AI, working with the best in the game, and he’s just getting started. No Cap, this guy’s on a path to do some serious damage in the tech world.

Founder ID: 100228

Experience

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