Overview
- Apple has held talks with OpenAI and Anthropic about using their LLMs as Siri’s core conversational engine.
- In-house trials of custom ChatGPT and Claude builds are running on Apple’s Private Cloud Compute infrastructure.
- Anthropic’s models currently offer the best compatibility but demand multibillion-dollar annual fees that rise over time.
- Apple has not decided whether to continue its own Siri LLM development or fully outsource to an external provider.
- Enhanced Siri Intelligence features are now set to arrive in an iOS 26 update, with a complete LLM-powered Siri slated for iOS 27 in fall 2026.