Koko is a mental health nonprofit founded by a team from MIT and Airbnb, dedicated to providing online mental health support to young people. Backed by YCombinator and Fast Forward, Koko has developed services for major internet platforms like TikTok, Pinterest, and Tumblr, reaching over 4 million young individuals across 199 countries. The organization focuses on building scalable AI systems that deliver timely mental health interventions, ensuring ethical considerations and user safety are prioritized. Koko's mission is to address the youth mental health crisis by creating accessible online interventions, supported by a diverse and passionate team committed to making a significant social impact.