Enterprise · backend
Use Arctic Large with Express.js
Updated 2026-05-21 · By XALEN
How to use Arctic Large (Enterprise, 480B (17B active)) with Express.js. Install, authenticate, and make your first API call in minutes. Working code example included.
Model
Arctic Large
480B (17B active) · 128K context · $0.06 input
Framework
Express.js
backend · npm install xalen-sdk express
1. Install
npm install xalen-sdk express
2. Code
const express = require('express');
const XALEN = require('xalen-sdk');
const app = express();
app.use(express.json());
const client = new XALEN({ apiKey: 'xln_test_YOUR_KEY' });
app.post('/chat', async (req, res) => {
const response = await client.chat.completions.create({
model: 'arctic-large',
messages: req.body.messages
});
res.json({ reply: response.choices[0].message.content });
});
app.listen(3000);
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Get API KeyLast updated: 2026-05-21