According to @OpenAI, it launched a preview of ChatGPT Pulse that proactively delivers personalized daily updates from user chats, feedback, and connected apps like calendars, rolling out to Pro users on mobile today; source: OpenAI (X post dated Sep 25, 2025). The announcement creates a dated AI product release event today that traders can place on their news-driven calendars when monitoring AI-sector headlines; source: OpenAI (X post dated Sep 25, 2025). The post does not disclose desktop availability, pricing changes, or API details; source: OpenAI (X post dated Sep 25, 2025).