the size of the world bank is $1 billion.
IMF funds are not denominated in US dollars, which translates into more than 2 billion US dollars.
But the World Bank is a bank, and its main role is to provide loans, usually long-term loans.
The International Monetary Fund mainly manages the monetary policies of various countries, and at the same time, as a fund, it provides short-term capital borrowing for member countries in economic difficulties, but the borrowed funds must be paid off within five years.
So, in terms of scale alone, the IMF is richer.