AI Toolkit

AI Toolkit is for teams that need AI to work inside structured documents, not just generate text. If you're building a legal document editor, a compliance tool, or a collaborative writing platform where every AI edit must be reviewed and traced, this SDK is the best you'll find. It's deeply integrated with Tiptap's editor, which already handles custom nodes, collaborative editing, and complex document structures. We'd reach for this when the product requires schema-aware edits—AI that understands your custom citation nodes or legal clauses. It also shines for multi-document batch operations and server-side processing, which many competitors ignore. Where it bites: the setup is non-trivial. You need to be comfortable with ProseMirror/Tiptap internals and hooking up AI SDKs yourself. The pricing tiers start at $49/month for the platform, and AI Toolkit is an add-on requiring a paid plan, so the cost adds up quickly. Compared to Vercel AI SDK or LangChain, which offer generic AI tooling, AI Toolkit is purpose-built for documents and provides review workflows out of the box. But if you just need a simple AI writing assistant (like Notion AI or Grammarly), skip this—it's overkill. In practice, best for developer teams building governed AI editing into vertical products.