Simon Willison's WWDC Verdict: 'I'll Believe It When I See It' on Siri AI — but the Gemini-on-Private-Cloud Approach Looks Technically Feasible

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In a same-day June 8 post, Willison applied his standard skepticism to Apple's Siri AI promises, noting Apple has over-promised on Siri before, but conceded the new architecture at least looks buildable with current tech because Apple is licensing a custom Gemini-derived model it can run on its own Private Cloud Compute rather than inventing frontier capability from scratch. His practitioner take cuts against the hype cycle: the interesting engineering story is the routing tier and the third-party model protocol, not the assistant demos. For builders weighing Apple Intelligence, his framing separates shippable plumbing from aspirational keynote features.