What does Flint (K12) do?
Flint is an AI-powered personalized learning platform for K-12 schools, enabling teachers to deliver individualized instruction at scale through dynamic worksheets, adaptive assessments, and interactive learning activities. Founded in 2023 and backed by Y Combinator, the platform serves 500,000+ users across hundreds of schools globally, including a partnership with Cognita to reach 95,000 students across 110 schools. Flint raised a $15M Series A in November 2025 co-led by Basis Set Ventures and Patron.