Beyond the data, OpenAI is getting access to the most valuable users on the planet. Everyone using this will see that "ChatGPT" is what's used when Siri is not

Beyond the data, OpenAI is getting access to the most valuable users on the planet. Everyone using this will see that "ChatGPT" is what's used when Siri is not smart enough. It really puts their brand out there in a big way. They want to be a household name, like Google. It's also smart for Apple because they can slowly improve Siri (one can dream) so that it falls back less and less on ChatGPT. They can also make a deal with Google (Gemini) and others, so that they can start giving users the choice of what LLM to use, which means they can start charging Google or OpenAI another 10Bn++ for being at the top of the list, or being the default choice entirely.