Anthropic is the more common of the two in our index: it runs on 5,928 websites against 245 for Lovable, and 190 sites use both. Counts come from real scans, not vendor claims.
Anthropic is an AI safety company that develops Claude, a family of large language models, and provides an API for building AI-powered applications. The anthropic-domain-verification TXT record confirms domain ownership for Anthropic services.
Lovable is an AI-powered collaborative page builder for generating UI components, projects, and templates in real time.
190 sites run both Anthropic and Lovable. That is 78% of the sites using Lovable, the smaller of the two.
Want to know which one a particular site uses? Look it up and see its whole stack, or compare two sites side by side.