Apple announced a new suite of AI features called Apple Intelligence at its recent developer conference. This suite promises to do everything from rewriting emails to creating custom emojis, all while keeping your data secure.

Here’s a breakdown of how Apple is trying to achieve this:

• On-device AI: Apple uses small, specialized AI models directly on your iPhone, iPad, or Mac. This keeps your data private because it never leaves your device. However, these models are less powerful than what competitors offer in the cloud.
• Fine-tuning: Apple trains these models for specific tasks, like summarizing text or proofreading emails, making them more effective.
• Apple Silicon: Apple’s custom chips include a Neural Engine specifically designed for AI tasks, which helps these on-device models run faster.

However, some tasks require more powerful models than what can fit on your device. Here’s how Apple handles those:

• Private Cloud Compute (PCC): When a complex request needs more power, Apple sends it to special cloud servers called PCC. These servers are secured with layers of encryption and have no access to user data beyond the specific request.
• End-to-end encryption: All communication between your device and PCC is encrypted, ensuring no one can intercept your data.
• No persistent storage: PCC servers don’t store any data after processing the request. This means your information is deleted as soon as it’s used.
• Open to inspection: Apple plans to make a virtual version of PCC available for public scrutiny, allowing experts to verify its security claims.

There are still some unknowns:

• What triggers cloud processing? We don’t yet know exactly how complex a request needs to be before it gets sent to the cloud.
• Offloading to ChatGPT: For some “world knowledge” questions, Apple will use OpenAI’s ChatGPT service, shifting the privacy responsibility to OpenAI.

Apple’s approach is unique in its focus on privacy. While Google and Microsoft offer similar AI features, they don’t necessarily prioritize user data security to the same extent.

The real test will come when Apple Intelligence launches this fall. Can Apple deliver a balance of powerful AI features and strong privacy protections? We’ll have to wait and see.