GPT-5 Pro is not just GPT-5 with higher reasoning effort - it’s a different thing. Under the hood, it’s based on GPT-5, and you’ll notice all of GPT-5’s person

GPT-5 Pro is not just GPT-5 with higher reasoning effort - it’s a different thing. Under the hood, it’s based on GPT-5, and you’ll notice all of GPT-5’s personality traits in its outputs, so it still bears the GPT-5 brand.