This is MobileLLM GGUF format model, which can be easily runned on PCs, mobile phones or devices with llama.cpp.

If you are a Mac user, the following free wonderful AI tools can help you to read and understand PDFs effectively:

If you are using Zotero for managing and reading your personal PDFs, ZoteroChat is a free plugin which can assist you to chat PDFs effectively by your local MobileLLM.
you can directly download the beautiful ChatPDFLocal MacOS app from here, load one or batch PDF files at will, and quickly experience the effect of the model through chat reading. PS. Click here to subscribe or invite friends in ChatPDFLocal MacOS app can earn credits to use freely.