alt Hacker NewsThe point of the GPT-5 model is that it is supposed to route between thinking/nonthinking smartly. Leveraging prompt hacks such as instructing it to "think carefully" to force routing to the thinking model go against OpenAI's claims.
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koakuma-chan • yesterday at 7:08 PM
Are you sure? I thought you can only specify reasoning_effort and that's it.
Just select GPT5-thinking if you need anything done with competence. The regular gpt5 is nothing impressive and geared more towards regular daily life chatting.