Can you elaborate on it - what do you have in production, what is in the pipeline? Which architectures? What type of ground data do these algorithms need for improving the performance? What is the current accuracy?

Well, I think this is a too big of a question to be answered here well. In a nutshell there is A LOT happening on AI. This recent workshop at ECMWF should give you an idea of some of the main areas of development. https://events.ecmwf.int/event/172/