For most of the last few years, AI has been a very smart help desk. You ask how to do something in a spreadsheet, it tells you which menu to open, and then you go open it. Computer use is the version where the AI does the clicking. (Okay, the virtual clicking.)
It’s behind a lot of the agentic AI news lately, including OpenAI’s GPT-6.1 Terra, which launched in late October and is built mostly around this one skill.
What it means
Computer use is an AI model operating a computer the way a person does. It looks at a screenshot, decides what to do, moves the cursor, clicks or types, then takes another screenshot to see what happened. Repeat until the job’s done.
That’s different from an AI plugging into an app through a back door built for software (an API, or something like MCP). Computer use goes through the front door, using the same buttons you’d use. So it can work with almost anything that has a screen, including old software nobody ever built a back door for.
Why it matters
It’s getting cheap fast. OpenAI priced GPT-6.1 Terra at $1 per million input tokens and $5 per million output tokens, half what its previous computer-use model cost, and says it finishes tasks more than three times faster than GPT-6 Astra. Those are OpenAI’s own numbers, so I’d take them with a grain of salt.
It’s slow and literal compared to you. Every step is look, think, click, look again. A form you’d knock out in two minutes can take an agent a lot longer, and one surprise pop-up can throw the whole thing off.
An AI that can click “submit” can also click “delete.” OpenAI rated Terra at the top “Critical” level for cybersecurity risk under its own safety rules and shipped it with the same safeguards as its biggest model. Most tools also stop and ask before anything you can’t undo, like sending a message or paying for something.
Simple example
Your dad calls because the printer won’t print. You can talk him through it on the phone. “Click the Apple. No, top left. Okay, now System Settings.” It works, kinda, eventually.
Or you can drive over, sit down at his desk and just fix it. Same computer, same buttons, but now your hand is on the mouse. That’s computer use. The AI quits reading you directions over the phone and pulls up a chair.