Own your
intelligence.

Private AI that runs on your machine. No subscriptions. No cloud. No one reading your conversations. No terminal, no configuration. Just download, open, and ask.

Pre-order Now Download Free for Mac

Also available for Windows · Free forever · No account required

1 Petaflop
AI performance
128 GB
Unified memory
200B
Parameter models
Silent
Always on

5.9″ × 5.9″ × 2″

Philosophy

No single company should own the most intimate details of your life — your medical questions, your financial plans, your private thoughts at 2am. Leadership changes. Cultures shift. Data gets licensed. Terms get rewritten. Why trust someone else with everything when you don't have to?

Aspen brings the full power of AI into your home. Your data never leaves. It's never used to train anyone's model. It's yours.

Software

Beautiful on every screen.

Chat. Voice. Code. The latest open models, always updated. One app for Mac, Windows, iPhone, iPad, Android, and web.

Qwen 2.5
Llama 3.2
DeepSeek R1
Mistral
Help me write a bedtime story about a fox who learns to fly
Qwen 2.5 · Running locally on your machine
Once, in a forest where the trees grew so tall they tickled the clouds, there lived a fox named Sable who was absolutely certain she could fly. Every evening she climbed the highest hill, spread her russet arms wide, and leapt. Every evening, she tumbled. But one night, a barn owl named Orla landed beside her and said, “You're not failing, dear. You're practicing.” And that night, for the first time, the wind caught her.
Privacy

We didn't add privacy.
We removed the server.

Your data never leaves your machine. There is no data to encrypt in transit because there is no transit. There is only Aspen, on your hardware, running on localhost, under your control.

01

Zero data collection

No telemetry. No analytics. No tracking. We literally cannot see what you do with your device.

02

Never used for training

Your conversations are never fed into any model. Your data exists to serve you and no one else.

03

Works without internet

Airplane mode. Off-grid. Air-gapped. Your AI works wherever you go, with or without a connection.

For developers

OpenAI-compatible.
Two lines to switch.

Aspen exposes a standard OpenAI-compatible API. Change your base_url and api_key — two lines of code — and your entire stack runs privately on your own hardware, no data leaves — powered by localhost. Works with ChatGPT and Claude SDKs out of the box.

CursorVS CodeLangChainContinue.devn8nZapierAny OpenAI SDK
// Two lines. That's it.
import OpenAI from 'openai';

const ai = new OpenAI({
  baseURL: 'https://my.runonaspen.com/v1',
  apiKey:  'sk-aspen-...',
});

const r = await ai.chat.completions.create({
  model: 'qwen2.5:7b',
  messages: [{ role: 'user',
    content: 'Hello' }],
});

The last AI decision
you'll ever make.

One machine. Private, powerful intelligence — on your hardware, in your home, forever.

Pre-order Now — $10,000

or

Get started now for free. Download for Mac or Windows.