Blog

Aion 2.0 Is Now Available in Puter.js

On this page

Puter.js now supports Aion 2.0, the latest model from Aion Labs, built on DeepSeek V3.2 and optimized for immersive roleplaying and storytelling.

What is Aion 2.0?

Aion 2.0 is a fine-tuned variant of DeepSeek V3.2, specifically optimized by Aion Labs for creative writing and roleplaying. It features a 131K context window and uses mandatory extended reasoning to think through its creative decisions before generating output.

Key strengths include:

  • Tension & conflict: Excels at introducing crises and conflict into narratives, making stories more engaging
  • Mature themes: Handles darker and more nuanced themes with depth
  • Extended reasoning: Uses mandatory <think> tags to reason through creative decisions step by step
  • Long context: 131K context window for extended storylines and multi-turn sessions

Examples

Basic Roleplay

puter.ai.chat("You are a grizzled detective in a noir city. A mysterious stranger walks into your office late at night with a case that could change everything. Set the scene and begin the story.", {
    model: "aion-labs/aion-2.0"
})

Character-Driven Dialogue

puter.ai.chat([
    { role: "system", content: "You are an ancient vampire who runs a quiet bookshop. You speak with old-world charm and hidden menace. Stay in character." },
    { role: "user", content: "I'm looking for a very rare book. One that most people say doesn't exist." }
], { model: "aion-labs/aion-2.0" })

Storytelling with Streaming

async function streamStory() {
    const response = await puter.ai.chat(
        "Continue this dark fantasy story: The last city stood at the edge of the void. Its walls were crumbling, its defenders exhausted. And then the horns sounded...",
        { model: "aion-labs/aion-2.0", stream: true }
    );

    for await (const part of response) {
        if (part?.text) puter.print(part.text);
    }
}

streamStory();

Get Started Now

Just add one library to your project:

// npm install @heyputer/puter.js
import { puter } from '@heyputer/puter.js';

Or add one script tag to your HTML:

<script src="https://js.puter.com/v2/"></script>

No API keys or account needed. Start building with Aion 2.0 immediately.

Learn more:

Free, Serverless AI and Cloud

Start creating powerful web applications with Puter.js in seconds!

Get Started Now

Read the Docs Try the Playground