Copyright Bloomberg

Apple Inc. is planning to use a 1.2 trillion parameter artificial intelligence model developed by Alphabet Inc. ’s Google to help power its long-promised overhaul of the Siri voice assistant, according to people with knowledge of the matter. The iPhone maker is banking on Google’s help to rebuild Siri’s underlying technology, setting the stage for a new slate of features next year. The Google model’s 1.2 trillion parameters — a measure of the AI software’s complexity — would dwarf the level of Apple’s current models.