GPT-5.5 Pro effectively fact-checks full book chapters by locating and confirming key references across lengthy source material
Users report occasional mismatched hedges on minor details.
One of the easiest ways to show journalists and academics who have not used AI in awhile how far things have come is to throw something they know into Pro (or Extended Thinking) and ask for a fact check.
Between the citations & actual depth of critique, it really changes minds.
Ethan Mollick@emollickGPT-5.5 Pro is a very solid fact checker. I can throw entire chapters at it and it will hunt down every key reference accurately. The only real annoyance is that it loves nuance, so returns a lot of “the general idea is right, but you are not taking into account tiny detail X”
@emollick it loves to hedge/nitpick even when the hedge/nitpick is not correct lol
Ethan Mollick@emollickGPT-5.5 Pro is a very solid fact checker. I can throw entire chapters at it and it will hunt down every key reference accurately. The only real annoyance is that it loves nuance, so returns a lot of “the general idea is right, but you are not taking into account tiny detail X”