According to Wikipedia, In 1998, just before when Pakistan was preparing for a nuclear test, the then US president Bill Clinton offered Pakistan a package of financial aid in exchange for not conducting a test. Pakistan rejected that offer. Then, the G8 countries threatened Pakistan with economic sanctions. Again Pakistan was undeterred.
In 1999, the sanctions against Pakistan, for testing nuclear weapons, was lifted by the USA because of the concern that, if Pakistan's regime collapses, Pakistan could sell its nuclear know-how to other Muslim states like Iran, etc.
From 2001, the USA provided Pakistan with monetary aid to establish security and a command and control structure for Pakistan's nuclear weapons.
In 2012, there was a proposal for Pakistan for signing a treaty to stop producing fissile materials. Pakistan blocked that negotiation, too.
So, to answer your question, initially, there was a proposal for stopping Pakistan's nuclear program which Pakistan didn't pay heed to. Then when the USA understood that Pakistan won't give up its nuclear asset, they came to Pakistan's aid to secure their nuclear assets so that it doesn't proliferate. Then, finally, the international community gave up on Pakistan, and they are just minding their own businesses.
In my opinion, a nuclear arsenal cannot be exchanged for any amount of money. Therefore, Pakistan won't give up its nuclear program, won't dismantle its nuclear assets, and they will keep them at any cost.
There are several educative examples to look at:
- In 2014 (Crimea) and in 2022 (Donbas), the whole world is observing what is happening to Ukraine when they gave up their nuclear missiles in 1994.
- In 2011, the whole world saw what happened to Gaddafi when he rolled back his nuclear program in 2003.
- And finally the whole world saw this:
