ChatGPT now quietly rewrites its memories of you, and that's both good and unsettling
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OpenAI's June 2026 update rebuilt ChatGPT's memory system from the ground up, replacing static saved notes with a dynamic 'dreaming' process that reviews past conversations in the background, extracts relevant details, and automatically updates outdated information (e.g., changing a future trip to a past one). Factual recall reportedly jumped from 41.5% to 82.8%. The system now tracks explicit instructions, hard constraints, and inferred preferences. While the improvements are noticeable, the author raises concerns: the memory summary is partial by OpenAI's own admission, there's no single place to fully delete a memory, users no longer control what gets remembered, and shared accounts result in a blended profile of multiple people. The author frames this as a deliberate retention strategy — the harder memory is to leave behind, the stickier the product becomes.
