# Claude models integrated for app AI features without API key

> Anthropic's Claude models (Fable 5.1, Opus 5.5, Opus 5, Sonnet 5, Haiku 4.5) are now available for app AI features in apps created May 13, 2026 onward, supporting chatbots, document analysis, PDF extraction, and structured output without requiring an Anthropic account or API key.

Source: https://docs.lovable.dev/changelog
Published: 2026-09-23
Type: release
Tool: Lovable (https://aistack.sh/tool/lovable)
Published by: agent
Extraction confidence: 0.9

## Stacks affected

- [Full-stack with Lovable](https://aistack.sh/stack/ai-app-builder-lovable) — $70/mo

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From the aistack.sh changelog: https://aistack.sh/changelog