# Anthropic's Most Important API Customer Is Now Its Competitor - slug: anthropics-most-important-api-customer-is-now-its-competitor - date: 2026-04-19 - category: Artificial Intelligence Lovable built a $6.6B company on Anthropic API. On April 17, Anthropic shipped the same product to every Claude subscriber — and Lovable fired back with double credits the same day. ---