Google #Gemini has trained on #OpenStax #OpenAccess #textbooks.
https://blog.google/products/gemini/google-gemini-learning-features/
If you address a question to "@openstax", Gemini will build an answer from those textbooks and cite them.
I asked it whether there were other categories of training data that we could address with @ commands, and it said no, at least not yet. On the one hand, Gemini has been flat wrong about itself before. On the other, I like the possibility of more of these @ commands to come.