Apple's Memory Graph: Analyzing Siri's New Knowledge Representation

New code findings in the iOS 27.3 beta reveal that Apple is implementing a 'memory graph' architecture to enhance Siri's contextual awareness.

Technical Overview

• Data Structure: The system utilizes the Kuzu graph database, which Apple acquired in 2025, to map relationships between 'memory atoms' (facts, opinions, intentions, and events).
• Processing: Insights are derived via two primary methods:
  1. Structured Data Extraction: Parsing contact cards and local metadata.
  2. AI Inference: Using on-device models or Private Cloud Compute to query sources like Mail, Messages, Photos, and HealthKit.
• Implementation: The current implementation includes a set of 60 built-in queries designed to identify user motivations and behavioral barriers. The system is currently in an unfinished state, with no active 'writer' process for memory atoms yet identified.

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Source: https://www.macrumors.com/2026/11/09/siri-could-get-better-remembering-your-life/