https://www.nytimes.com/2025/02/01/technology/openai-operator-agent.html
The version tested here was unimpressive, though some of the limits (CAPTCHA, Credit Card, etc) are presumably temporary.
A narrower-scope agent to replace the human “swivel-chair interface” seems more achievable. (If the Agents actually work reliably that implies a level of functionality that will replace most of us.)