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# Apple Reverses Privacy Stance to Train Siri on User Data
- URL: https://adjacent.media/signals/apple-reverses-privacy-stance-to-train-siri-on-user-data/
- Published: 2026-09-16T16:15:32.000Z
- Updated: 2026-09-16T16:15:32.000Z
- Description: Apple is now explicitly asking users to opt-in to having their data used for AI training—a reversal of its long-standing “we don’t train on your data” positioning that helped differentiate the company from rivals like Google and Meta.
- Author: Jonathan Greene
- Tags: #signal, theme-ai, model training, data policy, foundation models

Source: [Michael Tsai](https://mjtsai.com/blog/2026/09/15/opting-into-training-siri-ai-and-apple-foundation-models/?ref=adjacent.media)

Apple is now explicitly asking users to opt-in to having their data used for AI training—a reversal of its long-standing "we don't train on your data" positioning that helped differentiate the company from rivals like Google and Meta. The shift exposes the economics of competitive AI development: even Apple's scale and resources require access to real user interactions to build competitive foundation models. The company is willing to trade its privacy-first brand positioning for training data. Opt-in consent now functions as adequate legal and PR cover for data usage that would have been unthinkable in Apple's privacy narrative years ago.