Essential AI Libraries for Node.js Developers

Getting started with AI in Node.js is simpler than you might think. The key libraries to know are:

1. OpenAI SDK

npm install openai

import OpenAI from 'openai';

const openai = new OpenAI({ apiKey: process.env.OPENAI_API_KEY });

const completion = await openai.chat.completions.create({
  model: 'gpt-4',
  messages: [{ role: 'user', content: 'Hello!' }]
});

console.log(completion.choices[0].message.content);

2. LangChain.js

For more complex chains and agents:

npm install langchain

3. Hugging Face Transformers

For local model inference:

npm install @huggingface/inference

These three libraries cover 90% of AI use cases in Node.js applications.