We filed jointly last year and paid AMT $1375. Can we file separately this year and have the one with lower income claim all the AMT credit? If not, how should we split?

We tried filing jointly and separately this year to see which can save us more money. And we find when we file separately, TurboTax seems to apply all the AMT credit to one of us, while when we file jointly, we can't use all the credits, so overall we are paying more taxes. I was wondering if this is something we can do?