You can run an Anthropic-provided Docker container on your own computer to try out the new capability against a (hopefully) locked down environment. https://github.com/anthropics/anthropic-quickstarts/tree/main/computer-use-demo
I told it to "Navigate to http://simonwillison.net and search for pelicans"... and it did!
@simon I keep imagining the old Chicken Chicken Chicken: Chicken Chicken research paper, only as Pelican Pelican Pelican: Pelican Pelican.