Odyssey GPT (https://www.odysseygpt.ai) processes pdf, doc or txt documents from instructions in a chatbot with document viewer.

4 models of generation with reasoning are proposed: “speculative”, “consistency”, “deep reasoning” and “heuristic research”.
Comparison of several documents possible.

Language model not specified.

With a free account, 5 documents and 15 queries per month with 1 GB of storage.

Tests with AI Framework in Education https://www.education.gouv.fr/cadre-d-usage-de-l-ia-en-education-450647