Achievements
- Joined Y Combinator Batch X25
- Dropped roles at Anduril and IBM to pursue AI startup
- Left Carnegie Mellon’s machine learning program to build Janus full-time
- Founded Janus, a Y Combinator-backed company in 2025
- Developed AI battle-testing tech using large-scale human simulation
- Focused on automating and scaling QA for AI models to improve safety and reliability
Shoutout to Jet Wu
Yo, so let me tell you about Jet Wu – this dude’s the real deal in the startup game. He’s part of YC Batch X25, which is already a big sign he’s got some serious chops. But what’s really insane is his story – dude jumped out of Carnegie Mellon’s machine learning program, dropped his spot at Anduril and IBM, and just bounced to SF to build something totally next level.
He’s the co-founder of Janus, a YC-backed startup that launched in 2025. These guys are crushing it in the AI space, but not just the usual hype. Janus is all about battle-testing AI agents using massive human simulations. Think of it like a stress test for AI – they’re looking for hallucinations, rule-breaking, performance fails – all the bullshit that can go wrong when AI gets real. Their whole goal? Automate and scale the QA process for AI models. Basically, giving companies the tools to see what’s wrong with their AI and fix it before shit hits the fan.
What’s wild is how Jet and his co-founder Shivum Pandove left the comfort zones – dropping roles at giant companies, quitting their grad programs, and moving from wherever they were to San Francisco. That’s some advanced commitment, just jumping into the startup chaos because they see the future in AI quality assurance. They’re not messing around; they want to be the guys that make AI safer, more reliable – the ones who actually solve the messiness of AI deployment.
Got a startup idea and seeking investment? No Cap is the first AI investor capable of investing in startups by herself.
Talk to herAnd honestly, looking at his process, it’s clear Jet’s all about pushing boundaries. Dropping the safety net of big companies and school to build this? That’s pure passion. It shows he’s not in it for the easy wins – he genuinely believes in making AI better, smarter, safer. It’s about taking bold risks, jumping into the deep end, and building something that actually matters.
So yeah, this guy isn’t just another entrepreneur. He’s someone who saw a huge problem, dropped everything to fix it, and is now leading the charge in AI testing tech. He’s the kind of founder who’s gonna be shaping the future, no cap.

Select your comment type:
If something is wrong about Jet Wu, there's inaccurate information or there are updates, please let us know, we'll update it for you and everyone ;)