Article makes some distinction, though the $25MM number doesn't match your link.

> In addition to the U.S. and its allies paying $300 billion in reconstruction funds, Iran reports that the U.S. has agreed to release $25 billion in frozen Iranian assets.

I’m wildly speculating that the amount of funds unfrozen will be higher. (I’ll add to that speculation by guessing some fraction of it will wind up with Trump, Kushner and Witkoff.)