Open Source · frontend

Use Llama 3.1 405B with Svelte

Updated 2026-05-21 · By XALEN

How to use Llama 3.1 405B (Open Source, 405B) with Svelte. Install, authenticate, and make your first API call in minutes. Working code example included.

Model

Llama 3.1 405B

405B · 128K context · $0.08 input

Framework

Svelte

frontend · npm install xalen-sdk

1. Install

npm install xalen-sdk

2. Code

<script>
import XALEN from 'xalen-sdk';

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

async function ask(question) {
  const res = await client.chat.completions.create({
    model: 'llama-3-1-405b',
    messages: [{ role: 'user', content: question }]
  });
  reply = res.choices[0].message.content;
}
</script>

<p>{reply}</p>

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Last updated: 2026-05-21