Why do companies speak as if there is ONE AI. Seems to me we can have different models, different personalities. Microsoft's Sydney can be an agressive AI, Open

Why do companies speak as if there is ONE AI. Seems to me we can have different models, different personalities. Microsoft's Sydney can be an agressive AI, OpenAI's ChatGPT a smart AI, and Google's Bard a broken and late to the game AI. There could be others too. For example a sarcastic AI, a utopic AI, a funny AI, etc... Right now they are all mangled as one. I say we give them personalities that can excuse their bad manors.