Saif Ishoof(@saif305):I remember meeting @0xSigil in SF like 4 years ago. He was maybe 17 or 18 yo and had this boundless founder energy mixed with a relentless focus on actually building things. It also stood out that he was infused with a sense of joyfulness in the difficult and at times solitary task of building hard things. My own son @nabs_labs who was 14 at the time and also a young builder wanted to connect and Sigil was there to be a resource to a fellow crazy early builder. (Nabs is now 18 and in that same builder zen frenzy mode) No one is surprised to see that @khoslaventures @a16z @svangel and a who’s who of venture is backing this builder. You can just do things…

2026.10.03 00:53

I remember meeting @0xSigil in SF like 4 years ago. He was maybe 17 or 18 yo and had this boundless founder energy mixed with a relentless focus on actually building things. It also stood out that he was infused with a sense of joyfulness in the difficult and at times solitary task of building hard things. My own son @nabs_labs who was 14 at the time and also a young builder wanted to connect and Sigil was there to be a resource to a fellow crazy early builder. (Nabs is now 18 and in that same builder zen frenzy mode) No one is surprised to see that @khoslaventures @a16z @svangel and a who’s who of venture is backing this builder. You can just do things…

Sigil Wen@0xSigil

2026.10.02 17:02

Introducing Underdog, your Private Personal AI on devices you already own Today we're announcing our backing from @a16z @khoslaventures @HummingbirdVC Anthology (@AnthropicAI @MenloVentures) @patrickc @naval @rauchg @polynoamial @Thom_Wolf @Mascobot @tszzl @OfficialLoganK and other top AI leaders Our mission is to provide free, capable, reliable and private AI to billions of people. Underdog’s Law: today’s frontier intelligence reaches your devices in six months. We’re starting with fast, capable AI that runs on consumer hardware. By co-designing models and inference engines, we’re pushing the frontier of capability, speed, power and data efficiency. Our research also spans agentic commerce, confidential inference, and how AI will reshape the internet economy. Privacy and capability no longer needs to be a tradeoff. If you believe in this future, join us. Time to build.