I was hitting my weekly limits in Grok Build too after just 3 days so I asked Grok to fork itself and build a bridge to use my Cursor subscription.
1 prompt. 3 hours of work, 80M tokens later and I got 'cgrok', a Grok Build clone just for myself that can use all models available in Cursor.
This is insane dude. You can just let Grok build things customized for you exactly as you want.