Tomorrow could be Apple’s most important AI moment yet.

WWDC 2026 is expected to be all about one thing: making Siri relevant again.

If the leaks are right, Apple is rebuilding Siri around a custom Google Gemini model, reportedly around 1.2 trillion parameters.

For context: Apple’s own on-device AI model is roughly 3B parameters.

The biggest rumor: Apple’s new Siri will reportedly be powered in the background by Google Gemini.

Not as a Google-branded chatbot, but as an Apple-controlled intelligence layer running behind Siri, likely tied to Apple’s privacy-first infrastructure.

So the new Siri likely becomes a hybrid system:

• small Apple model locally on your device

• large Gemini-class model in the cloud

• Siri as the orchestration layer

• Apple controlling the UI, app access and privacy layer

What to further expect:

• a much more conversational Siri

• deeper personal context across apps, messages, files, calendar, photos and contacts

• screen awareness

• actions inside apps

• a dedicated Siri app with chat history

• voice chat, file uploads and multimodal interaction

• better integration with Dynamic Island

• optional support for other AI services like ChatGPT, Claude or Gemini

Apple wants to turn Siri into the private AI layer of the operating system.

A system agent that can search, understand, write, edit, summarize, organize and act across your iPhone, Mac and iPad.

We may also see new Apple Intelligence features for:

• AI photo editing

• smarter Camera / Visual Intelligence

• improved Writing Tools

• natural-language Shortcuts

• better Wallet and Health integrations

• more privacy controls around AI data

Either way, WWDC 2026 could define Apple’s position in the AI race.

Exciting how the new CEO will handle all of this.

Images: Bloomberg, Mark Gurman