Apple plans a major Siri upgrade at WWDC in June, emphasizing privacy as a key differentiator against rivals like ChatGPT. The new standalone Siri app will feature user-controlled data retention, on-device processing, and minimal data collection. Reports suggest it may partially integrate Google's Gemini model, raising questions about privacy boundaries. The move aims to balance security with intelligence as Apple positions privacy as a competitive moat in the AI assistant race.