There's no point doing that given the Responses API has to be ad-free unlike ChatGPT Web API for applications to function correctly (no way baking ads into responses sent to third party services using your language model just as a natural language processor), and you have to keep the Web API tiers that's more expensive than the same amount of tokens of equivalent Responses API use also ad-free becuase otherwise the "wrong way of payment" paradox would arise.