But this was likely locked up years ago before this boom. Will Apple still be the premier customer for TSMC's next node A14?

Apple was actually told by TSMC to move off of N3 asap because Nvidia with its Vera Rubin and Google TPUs will take over.

Semianalysis had a great and detailed article about TSMC & Apple and how the future might play out: https://newsletter.semianalysis.com/p/apple-tsmc-the-partner...

The reporting was from August of last year.

	▲	aurareturn 5 hours ago \| parent [-]
		It takes TSMC years to develop a new node. Apple has been the launch customer for a long time for TSMC. This agreement likely happened many years ago, before this AI boom. The Macrumors article definitely isn't when Apple decided to buy half of N2 capacity for the first year. It would have happened years ago.