Discussing Twitter's finances, Mr Musk said the company is now "roughly breaking even", as most of its advertisers have returned.
He also said that cutting the workforce from just under 8,000 at the time he bought the firm to about 1,500 had not been easy.
He admitted he did not fire everybody in person, saying: "It's not possible to talk with that many people face to face."
The exit of many of Twitter's engineers since Mr Musk bought the company has raised concerns about the stability of the platform.
He acknowledged some glitches, including outages on the site but he said the outages have not been for very long and the site was currently working fine.