I’m not actually sure older models should be cheaper. GPT-5(.n) is amongst the cheapest models per-token that OAI have ever made. You could use N-minis, but those are distilled from N models which might have transferred misalignment. GPT-4 is definitely more expensive. Maybe GPT-3.5 is cheaper?
(And if you’re counting thinking tokens from 5.n models, you could just turn those off)
I’m not actually sure older models should be cheaper. GPT-5(.n) is amongst the cheapest models per-token that OAI have ever made. You could use N-minis, but those are distilled from N models which might have transferred misalignment. GPT-4 is definitely more expensive. Maybe GPT-3.5 is cheaper?
(And if you’re counting thinking tokens from 5.n models, you could just turn those off)