OpenAI’s newest gpt-oss-20b model lets your Mac run ChatGPT-style AI with no subscription, no internet, and no strings attached. Here’s how to get started.
Run AI models locally on your Mac
Run AI models locally on your Mac
On August 5 OpenAI released its first open-weight large language models in years, allowing Mac users to run ChatGPT-style tools offline. With the right setup, many Apple Silicon Macs can now handle advanced AI processing without a subscription or internet connection.
Running a powerful AI model on a Mac once required paying for a cloud service or navigating complex server software. The new gpt-oss-20b and gpt-oss-120b models change that.