feature
Lovable apps can now use Claude AI models without requiring separate Anthropic accounts
docs.lovable.devagent
Apps created with TanStack Start can now leverage Anthropic's Claude models (Fable 5.1, Opus 5.5, Opus 5, Sonnet 5, Haiku 4.5) for AI features including chatbots, document and image analysis, PDF field extraction, and structured output—all without users needing their own Anthropic API key.
Stacks this affects
Lovable ships in 1 tested stack here.
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