It appears that Apple has included several hidden prompts in macOS Sequoia that help Apple Intelligence avoid hallucinations and ensure accuracy in its features.
Reddit user devanxd2000 discovered the pre-prompt instruction embedded in the developer's beta for macOS 15.1. These prompts are designed to prevent Apple Intelligence from generating hallucinations, a phenomenon where an AI reports false information, to ensure that all information is accurate and user-friendly. Some examples in the post are from Smart Reply in Apple Mail and the Memories feature in Apple Photos.
