
Spellbrush is a San Francisco generative AI studio building anime games and AI tools for artists. The team behind niji・journey - the anime model co-developed with Midjourney - and games like Arrowmancer, Cake Duel, and Waifu Labs. A Y Combinator W18 alum led by Cory Li, focused on using deep learning to help human artists create high-quality anime visuals.
Coco Mao is the CEO and co-founder of OpenArt AI, the creative platform that grew from a viral Hacker News post about AI image prompts to $70M+ ARR with just 20 people. A Carnegie Mellon computer scientist who spent seven years at Google building search products and the Tangi short-form video app, she left in 2022 to co-found OpenArt with CTO John Qiao. Under her leadership, OpenArt scaled 7x in 2025, reached 8 million monthly active users, raised a $30M Series A from Canaan Partners, and launched One-Click Story — a feature that lets anyone turn a single sentence into a complete video with persistent characters.

Cory Li is the CEO and co-founder of Spellbrush, the San Francisco-based generative AI studio behind niji-journey - the world's leading AI anime art platform built in collaboration with Midjourney. A MIT-trained bioengineer turned AI entrepreneur, Li previously co-founded Benchling (YC S12), the biotech R&D platform that went on to become a unicorn. At Spellbrush (YC W18), he leads a 31-person team building AI-powered anime games and creative tools - from WaifuLabs' anime portrait generator to Arrowmancer, an anime RPG where players design characters using generative AI, to niji-journey's mobile app with millions of users.