OpenAI

The OpenAIEmbeddings class uses the OpenAI API to generate embeddings for a given text. By default it strips new line characters from the text, as recommended by OpenAI, but you can disable this by passing stripNewLines: false to the constructor.

import { OpenAIEmbeddings } from "langchain/embeddings/openai";

const embeddings = new OpenAIEmbeddings({
  openAIApiKey: "YOUR-API-KEY", // In Node.js defaults to process.env.OPENAI_API_KEY
  batchSize: 512, // Default value if omitted is 512. Max is 2048
});

If you're part of an organization, you can set process.env.OPENAI_ORGANIZATION to your OpenAI organization id, or pass it in as organization when initializing the model.

Custom URLs

You can customize the base URL the SDK sends requests to by passing a configuration parameter like this:

const model = new OpenAIEmbeddings({
  configuration: {
    baseURL: "https://your_custom_url.com",
  },
});

You can also pass other ClientOptions parameters accepted by the official SDK.

If you are hosting on Azure OpenAI, see the dedicated page instead.