The best rates i do believe are from megatypers, as they pay up to 1.20dollars for 1000 captchas, the problem is they have a buttom to boost speed, the cost of it usually makes no sense, but well they charge with the button you can get fast captchas over 15 minutes and you maybe can make 300 captchas, soo something like 0,30dolalrs. The payment can be done at 3 dollars , from fiat supporters or 1.5dollars with bitcoin payments.