Doubt.

Is this conjecture or can you provide some further reading, in the interest of not spreading misinformation.

Edit: I decided to read the info from Apple.

With Private Cloud Compute, Apple sets a new standard for privacy in AI, with the ability to flex and scale computational capacity between on-device processing, and larger, server-based models that run on dedicated Apple silicon servers. When requests are routed to Private Cloud Compute, data is not stored or made accessible to Apple and is only used to fulfill the user’s requests, and independent experts can verify this privacy.

Additionally, access to ChatGPT is integrated into Siri and systemwide Writing Tools across Apple’s platforms, allowing users to access its expertise — as well as its image- and document-understanding capabilities — without needing to jump between tools.

Say what you will about Apple, but privacy isn’t a concern for me. Perhaps, some independent experts will verify this in time.

Apple has published papers on small LLM models and multimodal models already. I would be surprised if they aren't using them for on-device processing.