How to Run GPT Models on Your Own Computer - The Simple Way

Want to use powerful AI like ChatGPT but keep everything private on your computer? Here's the easiest way to do it without any technical headaches.

Why Run AI Models Locally?

Running AI models on your own computer means:

• Complete privacy – your conversations never leave your device
• No internet required once set up
• No monthly subscription fees
• Full control over your AI assistant

What You'll Get

By following this guide, you'll have your own ChatGPT-like interface running entirely on your computer. We'll use a powerful 20 billion parameter model that works great on modern gaming computers.

What You Need

• A computer with an NVIDIA graphics card (RTX 3080, 3090, 4080, 4090, etc.)
• About 30 minutes of setup time
• Basic comfort with typing commands

Step 1: Prepare Your Computer

First, we need to install a tool called uv that makes Python management super easy. Visit the installation page and follow the instructions for your operating system

Once installed, open your command prompt or terminal and type:

Step 2: Install the Required Software
Now we'll install the programs we need. Don't worry about what each one does - just run these commands:

This installs:

• The AI engine that runs the models
• A web interface that looks like ChatGPT
• Tools to download AI models

Step 3: Download the AI Model

We'll download a smart AI model that's been optimized to run fast on your computer:

This downloads about 12GB of data, so make sure you have a good internet connection. The model is "quantized" which means it's compressed to use less memory while staying smart.

Step 4: Start Your AI Server

Now let's start the AI engine:

You should see messages like:

Keep this window open - this is your AI engine running!

Step 5: Start the Web Interface

Open a new command prompt/terminal window and run:

Step 6: Set Up Your AI Chat Interface

1. Open your web browser and go to:
   http://127.0.0.1:9000
2. Create an account (this stays on your computer only).
3. Click your profile picture → Admin Settings.
4. Go to Connections → OpenAI Connections.
5. Edit the connection:
   • Base URL: http://127.0.0.1:10000/v1
   • Leave API Key blank
   • Click Save
6. Go to the Models section and rename the model.

Step 7: Start Chatting!

1. Start a new chat
2. Select gpt-oss-20b from the model dropdown
3. Start typing your questions

Performance Notes

On an RTX 3090, you can expect:

• Fast responses (2–5 seconds for most questions)
• Support for long conversations
• Ability to handle complex tasks like coding and analysis

What's Next?

Once you have this working, you can:

• Try different AI models from Hugging Face
• Customize the interface
• Use it for coding, writing, research, and more

Final Thoughts Setting up your own AI used to be incredibly difficult, requiring hours of technical setup. This new approach makes it as simple as installing any other software on your computer. You now have a powerful, private AI assistant that rivals commercial services - and it's running entirely on your own hardware. No subscriptions, no data sharing, just pure AI power under your complete control. Need Expert Help with AI Implementation? While this guide helps you get started with local AI models, implementing AI solutions at scale for your business requires specialized expertise. At Gramosoft, we're an AI development company dedicated to helping organizations navigate their AI digital transformation journey. Whether you need

Whether you need:

• Custom AI model development tailored to your specific business needs
• AI integration into your existing systems and workflows
• Scalable AI infrastructure design and implementation
• AI strategy consulting to identify the best opportunities for your business
• Enterprise AI solutions that go beyond local setups

Our team of AI experts can guide you from concept to deployment, ensuring your AI initiatives deliver real business value while maintaining security and compliance standards.
Ready to transform your business with AI? Contact Gramosoft today to discuss how we can help you leverage AI technology for competitive advantage.

Follow this guide to get started with local AI, and when you're ready to scale up, Gramosoft is here to help you build enterprise-grade AI solutions that drive real results