SAN FRANCISCO, Jan 26 : Nvidia on Monday released three open-source artificial intelligence models aimed at helping create better weather forecasts, faster. The models, which the AI chip firm announced at the American Meteorological Society’s annual meeting in Houston, are part of a broader push by the company to provide open-source software, powered by its chips, for everything from chatbots to self-driving vehicles. In the case of weather forecasting, Nvidia is aiming to replace expensive and