Carnegie Mellon University made an announcement on Wednesday.

Hedge fund CEO Ken Griffin is giving $3 billion.

Most of the money will pay for a new campus in Miami.

The campus will work on problems in society.

The university said it is the largest single gift ever to a U.S. university.

Griffin's gift includes $2 billion for a campus in Miami.

The campus is 35 acres.

It is in the Wynwood neighborhood, just north of downtown.

About 3,500 students will study there.

They will be undergraduate, master's and doctoral students.

Building will start next year.

The campus will not have academic majors.

Instead, it will focus on "grand challenge areas."

These include human health, national security, energy and climate resilience, and advanced manufacturing.

The rest of the money will be split evenly.

Half will go to the computer science program at the Pittsburgh campus.

That program will be renamed after Griffin.

The other half will go to other projects at the main campus.

These projects are not yet named.

Carnegie Mellon President Farnam Jahanian said AI means the university must rethink things.

It must rethink how it teaches students, how it does research, and how it works with others.

Griffin is a big donor to the Republican Party.

He started Citadel.

He owns a home on the water in Miami.

He said bringing Carnegie Mellon to Miami puts the city at the heart of humanistic and scientific progress.

He is joining the university's Board of Trustees.