/OpenAI-Chat-LangChain

This is an OpenAI Chat example based on the use of Vercel AI SDK, Next.js, LangChain, MongoDB and other utilities.

Vercel AI SDK, Next.js, LangChain, OpenAI Chat Example

This example shows how to use the Vercel AI SDK with Next.js, LangChain, and OpenAI to create a ChatGPT-like AI-powered streaming chat bot.

Deploy your own

Deploy the example using Vercel:

Deploy with Vercel

How to use

Execute create-next-app with npm, Yarn, or pnpm to bootstrap the example:

npx create-next-app --example https://github.com/vercel/ai/tree/main/examples/next-langchain next-langchain-app
yarn create next-app --example https://github.com/vercel/ai/tree/main/examples/next-langchain next-langchain-app
pnpm create next-app --example https://github.com/vercel/ai/tree/main/examples/next-langchain next-langchain-app

To run the example locally you need to:

  1. Sign up at OpenAI's Developer Platform.
  2. Go to OpenAI's dashboard and create an API KEY.
  3. Set the required OpenAI environment variable as the token value as shown the example env file but in a new file called .env.local.
  4. pnpm install to install the required dependencies.
  5. pnpm dev to launch the development server.

Learn More

To learn more about LangChain, OpenAI, Next.js, and the Vercel AI SDK take a look at the following resources: