I do not know anything about recent SEO anymore. I also do not use ChatGPT AI (I work 24/7 mostly with Claude).
But I do not understand this dilemma. I have no idea why should one pick either ahrefs or ChatGPT? It is not the correct way to work with AI to ask what to do. AI is stupid and generally a YesMan. One should let AI to gather info and at the same time user should do DYOR; typically to ask AI about opinion, then import the ahrefs data into AI, then ask AI whether it insists on its opinion or not and most importantly to push AI into arguments why it says this or that.
AI is a language model. It is just a stupid machine after all. So it can do only stupid decisions so far. Even more stupid, when the question is a tiny sentence. Yes, it can bring a great ideas, but it does not work the way that it will bring it alone. It helps to sort out data, ideas, thoughts, arguments... but that is all. It gets constantly stuck with logic and needs to be recalibrated through arguments and reality checks.
If you talk to God, you are praying; If God talks to you, you have schizophrenia.