OpenAI launches ChatGPT plugin to read and send Apple Messages on Mac

OpenAI has launched an Apple Messages plugin for its ChatGPT Mac app, allowing the AI to read, search, and send texts across iMessage, SMS, and RCS formats on Apple silicon devices. The feature requires extensive user permissions, including Full Disk Access. While OpenAI asserts that data is processed locally, the integration raises significant privacy concerns regarding consent for other chat participants. The launch intensifies tensions with Apple, which is currently suing OpenAI for trade secret theft and developing its own competing AI features for Siri.

ChatGPT Messages plugin launch

• ▪The ChatGPT Apple Messages plugin is restricted to Macs running Apple silicon and is not available on Intel-based machines
• ▪OpenAI launched an Apple Messages plugin for the ChatGPT Mac desktop app on August 20, 2026, allowing the chatbot to read, search, summarize, and send replies.
• ▪The Apple Messages plugin works across iMessage, SMS, and RCS messaging formats and is available across all ChatGPT subscription tiers, including free, Work, and Codex modes.

User permission requirements

• ▪To activate the Messages integration, users must manually enable several permission settings in both the ChatGPT app and macOS, including granting Full Disk Access, contact access, and automation permissions.
• ▪OpenAI acknowledges a documented defect where certain tasks can disable the message approval prompt, allowing the safety mechanism to fail.
• ▪By default, sending a message through the ChatGPT plugin requires explicit user approval each time, though users can opt to enable persistent approval to let the model send texts without asking.

Privacy concerns raised

• ▪The Messages integration raises privacy concerns regarding consent asymmetry, as a single user enabling the plugin exposes entire group chats and contact histories without the consent of other participants.
• ▪OpenAI stated that the Messages plugin processes data locally on the user's Mac and does not automatically build a general index of all message histories, though technical details of this mechanism remain undisclosed.

OpenAI-Apple relationship tensions

• ▪Apple filed a lawsuit against OpenAI in July 2026, accusing the artificial intelligence company of stealing trade secrets and confidential information related to unreleased products.
• ▪The Messages plugin bypasses Apple's Siri, which is developing competing AI capabilities to retrieve information from personal content stored on user devices.
• ▪Apple has historically blocked third-party integrations with iMessage, such as shutting down the Android-compatible Beeper Mini app by altering its messaging stack.

Mac integration ecosystem expansion

• ▪OpenAI has previously integrated ChatGPT capabilities directly into Apple's system-wide Writing Tools and Siri as part of the Apple Intelligence rollout.
• ▪The Messages plugin builds on OpenAI's expanding macOS desktop integration ecosystem, which recently added a 'Computer History' feature to track user app and website activity

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