How much does Watson cost? What is the price model? To find out we need to go to many places, so for my own pleasure (not entirely true) I created a cheat sheet to show the Watson cost and price model in one place.
There is no correct answer to what languages IBM Watson currently supports. Each of the 28 services support different languages, services like AlchemyLanguage even supports different languages for each sub-api, sentiment (8) and language classification (97) as an example.