Nope. Chatgpt is one thing you get to use. That chatgpt being sold to devs is completely an different story. You can train chatgpt on books to *argue like a person, not like a General Polite and Admiral Know-it-all.
And.
The paradox that you need a certain knowledge in the domain to be able to recognize false information. Other parameters of a LLM can be set almost freely with the API access for 20 bucks / mo.
That's the "fine tuning". No chance for a LLM to recognize an other LLM. It may work out with a general AI or with an AI that can hook up and check on facts.