Good news, Scarlett Johansson, you may not need to use ChatGPT with Siri

So yes, most of the new AI-infused or AI-powered features coming to iOS, iPadOS 18, and macOS 15 Sequoia are powered by Apple Intelligence and use it on-device or in the Private Compute Cloud. And yes, that includes the vast majority of Siri’s new intelligence and new powers.

But Apple is giving users the option to opt out of another LLM (large language model) – OpenAI’s ChatGPT-4o can be enabled if Siri doesn’t quite know the answer or you might want to change your writing style. However, you are not locked into OpenAI’s latest LLM.

Speaking after the keynote concluded, Craig Federighi – Apple’s SVP of Software Engineering – shared a bit more about Apple’s approach here: “Ultimately, we want to empower users to use the model of their choice.”

(Image credit: Future / Jacob Krol)

It’s an approach similar to the way Apple lets you select a default search engine on your iPhone; Federighi did say that the LLM choice could potentially include Google Gemini, but was quick to note that Apple had “nothing to announce” but it is “the direction.” On stage with Federighi during the conversation were John Giannandrea – Apple’s SVP Machine Learning and AI Strategy – and Justine Ezarik (iJustine). Apple CEO Tim Cook introduced the conversation.