Overview
- Apple is reportedly finalizing a roughly $1 billion‑per‑year agreement for a custom 1.2 trillion‑parameter Gemini model to underpin the Siri overhaul.
- The Gemini instance would run on Apple’s Private Cloud Compute servers so user data remains under Apple’s control and outside Google’s infrastructure.
- Google’s model is slated to handle Siri’s summarizer and planner functions, while other features continue using Apple’s in‑house models.
- The revamped assistant, internally codenamed Linwood under the Glenwood initiative, is targeted for iOS 26.4 in spring 2026 under Mike Rockwell and Craig Federighi.
- Apple plans to keep Google as an unbranded supplier, with a roughly 1 trillion‑parameter in‑house cloud model in development intended to replace Gemini over time.