Before it
Agents acted through APIs and function calls, so they could only use software that offered one.
The problem
Most software has no API. It has a screen, a mouse and a keyboard.
What it introduced
The model looks at screenshots and moves the cursor, clicks and types like a person.
Why it matters
It removed the API precondition for automation and started the computer-use agent line across all major labs.
What modern models inherit
The screen as a universal interface for agents.
What came next
OpenAI's Operator, Gemini's agentic modes, and the 2026 computer-using coding agents.