A: Hi Iain,

Thanks for your question. We purposefully decided not to give an option to select the model as the app itself uses different models for various features depending on the performance suitability for each use case. Also, we keep changing the models as they get updated.

Regarding the number of documents you can chat with, it is 100 documents in Reference manager. But you can upload only 10 documents into reference manager at a time (which means you need to do it 10 times if you want to chat with them in reference manager). We are working to increase this limit and should have an update soon.

In chatwithpdf feature, you can upload and chat wtih 3 documents at a time.