Another simple experiment on the cheap, aim was to see how one could use LLMs to help generate talking points and questions to prepare for a presentation or talk. 
The other aim was to try out the new Meta-Llama-3.1-405B-Instruct model.
This app combines a RAG on a document, with a dynamic set of steps to generate talking points and questions for a presentation. Still work-in-progress, more work needed to tune the prompts and try other models like GPT 4o-mini, and maybe also add a web search for queries that cannot be answered by the document uploaded.
As you scroll through the slides or pages in the PDF, you can generate a list of talking points and potential questions, as well as make queries based on the current slide or page that will be answered based on the whole document. You can use the drop-down to choose between 3 models - Meta-Llama-3.1-8B-Instruct, Mixtral-8x7B-Instruct-v0.1, and Meta-Llama-3.1-405B-Instruct. 
I have uploaded on set of slides for anyone to try. Feel free to upload your slides, but try to delete them after you are done. The documents will also be deleted regularly.
The usual disclaimer relating to LLMs applies. Do NOT trust the outputs and always verify.