LangChain Support for Workers AI, Vectorize and D1

During Developer Week, we announced LangChain support for Cloudflare Workers. Langchain is an open-source framework that allows developers to create powerful AI workflows by combining different models, providers, and plugins using a declarative API — and it dovetails perfectly with Workers for creating full stack, AI-powered applications.

Since then, we’ve been working with the LangChain team on deeper integration of many tools across Cloudflare’s developer platform and are excited to share what we’ve been up to.

Today, we’re announcing five new key integrations with LangChain:

1. Workers AI Chat Models: This allows you to use Workers AI text generation to power your chat model within your LangChain.js application.
2. Workers AI Instruct Models: This allows you to use Workers AI models fine-tuned for instruct use-cases, such as Mistral and CodeLlama, inside your Langchain.js application.
3. Text Embeddings Models: If you’re working with text embeddings, you can now use Workers AI text embeddings with LangChain.js.
4. Vectorize Vector Store: When working with a Vector database and LangChain.js, you now have the option of using Vectorize, Cloudflare’s powerful vector database.
5. Cloudflare D1-Backed Chat Memory: For longer-term persistence across chat sessions, you can swap out LangChain’s default Continue reading