Apple’s upcoming iOS 27 and macOS Golden Gate releases contain hidden private frameworks that redefine Siri’s architecture, allowing external AI models to assume functions traditionally handled by Apple’s own server‑side Siri model.
Researcher identified as pdfu reverse‑engineered these frameworks and posted videos on X showing two distinct mechanisms that integrate third‑party models—Anthropic’s Claude and a GPT‑5.6 Terra implementation—into Siri’s workflow.
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The demonstration proves that Apple’s Siri can be fully supplanted by non‑Apple AI services, indicating a potential shift toward an open‑model approach for voice assistants within Apple’s ecosystem.
