Why does TurboTax separate American Opportunity Credit and Education Credit? My $2500 Amer Op credit is split to $1500 education credit and $1000 American Op credit?

Wife had over $4k in tuition in form 1098-T.  I'm filling out form 8863 and should have $2500 American Opportunity Credit.  However Turbotax shows $1500 education credit and $1000 American Opportunity Credit.  Wouldn't the IRS think this is wrong since my form 8863 will say $2500 American Opportunity Credit?