For a child under the age of 17 the Child Tax Credit for tax year 2023 is $2,000 per child. That amount has not increased for tax year 2024 as of this date.
The 2024 Child Tax Credit (CTC) amount is up to $2,000 per qualifying child. The CTC is nonrefundable, but you may be able to get a refund using the Additional Child Tax Credit (ACTC) if you end up owing less tax then the amount of CTC you qualify for.
Below is a link to an article that talks about the specifics of the CTC and ACTC.