Install and run GPT-OSS AI models offline with Ollama | Alpha | PandaiTech

Install and run GPT-OSS AI models offline with Ollama

A step-by-step guide to downloading and installing Ollama to run AI reasoning models locally on your computer without an internet connection.

Learning Timeline
Key Insights

Storage & Internet Requirements

The GPT-OSS-20B model has a large file size (around 13GB). Ensure you have sufficient storage space and a stable internet connection for the initial download process.

Real-Time Performance

Since this model runs locally, the speed of 'prompt completion' depends entirely on your computer's hardware power. Reasoning models are generally slower than standard chat models because they perform deep cognitive processing.

Privacy & Offline Usage

The primary advantage of using Ollama is data privacy. Once the model is fully downloaded, you can disconnect from the internet, and the AI will still remain fully functional offline.
Prompts

Marketing Plan Generation

Target: Ollama (GPT-OSS-20B)
Create an in-depth marketing plan for my business.
Step by Step

How to Install and Run the GPT-OSS AI Model Locally

  1. Visit the official website at ollama.com.
  2. Click the 'Download' button displayed on the homepage.
  3. Select your Operating System (e.g., macOS, Windows, or Linux).
  4. Once the download is complete, open the installer and follow the setup instructions to finish.
  5. Launch the installed Ollama application.
  6. In the app interface, click the model selection menu and ensure you select the 'GPT-OSS-20B' model (or the 9X version as specified).
  7. Type your prompt or question in the chat input field at the bottom.
  8. Press 'Enter' or click the send button; the application will automatically begin downloading the AI model file.
  9. Wait for the download to complete (the file size is approximately 13GB).
  10. Once finished, look for the 'Thinking' status, which indicates the AI is processing its reasoning before displaying the full response.

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