Built on top of the "dreaming" background process introduced in 2025, ChatGPT's new compute-efficient memory update can carry forward useful context for users.

OpenAI says it's rolling out a new update that improves the existing GPT-5.5 Instant model, and this move comes ahead of the scheduled retirement of multiple legacy models,…

ChatGPT’s memory feature allows it to learn about you and remember your preferences over time. Memory gives ChatGPT useful context...