I have a book manuscript already written the traditional way. It is non-fiction and related to architecture, specifically on holistic building and how a particular building, that was the passion project of two individuals, came to be built. It was originally written in a dry, academic style meant for architecture students.
But now the authors want to change the tone and make it more natural, conversational, direct and warm - like listening to someone speak.
Rewriting the whole book manually will be time-consuming, so I am exploring AI options.
Are there any FREE AI options currently, either directly usable or usable after some training effort, which can do this?
Preferably one that does not come with word count limits that will make me copy-paste thousands of paragraphs manually. I don't expect it to be perfect. Obviously a human editor will go over the whole thing for final corrections. Something where the style can be set in advance via options or by training (by uploading samples)