Open Source · language

Use Llama 4 Maverick with JavaScript

Updated 2026-05-21 · By XALEN

How to use Llama 4 Maverick (Open Source, 400B (17B active)) with JavaScript. Install, authenticate, and make your first API call in minutes. Working code example included.

Model

Llama 4 Maverick

400B (17B active) · 256K context · $0.07 input

Framework

JavaScript

language · npm install xalen-sdk

1. Install

npm install xalen-sdk

2. Code

import XALEN from 'xalen-sdk';

const client = new XALEN({ apiKey: 'xln_test_YOUR_KEY' });

const response = await client.chat.completions.create({
  model: 'llama-4-maverick',
  messages: [{ role: 'user', content: 'Hello from JavaScript!' }]
});
console.log(response.choices[0].message.content);

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Last updated: 2026-05-21