Access to gpt-4 vision api key

Hello all,
I try to understand how to access GPT-4 vision api access, i find somewhere that i have to pay 1$ but where? can someone give the guide to access paiment and key activation?

Yes, you need to be a customer with a payment on record to have GPT-4 models unlocked. Here’s your account link on the OpenAI API platform site where you first “add payment method” and then purchase prepay credits, a minimum of $5.