Memory sources and more personalized responses in ChatGPT

May 5, 2026
Memory sources and more personalized responses in ChatGPT
Starting today, we’re rolling out memory improvements to ChatGPT Plus and Pro users that make responses more personalized, useful, and continuous over time. ChatGPT can now better pull in relevant context from your past chats, saved memories, and, where available, files and connected Gmail app, to offer more tailored ideas, recommendations, and next steps. It is also faster at searching past conversations to find the right context, so you don’t have to repeat yourself as often.

We’re also introducing memory sources across all ChatGPT consumer plans, so you can see what information helped personalize a response and make edits if something is no longer relevant. Tap the Sources icon below the response to view relevant saved memories, past chats, and custom instructions. Plus and Pro users may also see files in their library and referenced emails from a connected Gmail account. If something is outdated or no longer relevant, you can correct it, delete it, or mark it as not relevant. Memory sources may not show every factor that shaped a response, and we’ll keep improving this view to make it more comprehensive over time. Memory sources are rolling out on the web and coming to mobile soon.

These updates are designed to make personalization more useful while keeping you in control. Memory sources are only shown within your account experience, and if you share a chat, those sources are not shown in the shared chat. You can delete chats, use temporary chats that do not use or update memory or appear in history, turn off memory, disconnect apps anytime, and manage whether your content is used to help improve our models.

GPT-5.5 Instant in ChatGPT
We’re rolling out GPT-5.5 Instant as ChatGPT’s new default model. It replaces GPT-5.3 Instant for all ChatGPT users and improves everyday answers across accuracy, clarity and conciseness, image understanding, STEM questions, and when ChatGPT decides to search the web.

GPT-5.5 Instant is more factually reliable, especially for prompts where accuracy matters most. It also gives tighter, more direct answers without losing useful details, asks fewer unnecessary follow-up questions, and reduces clutter like overformatting and gratuitous emojis.

For Plus and Pro users using chatgpt on web, GPT-5.5 Instant can more effectively use context from past chats, files, and Gmail, when connected, to make responses more relevant. This can help ChatGPT tailor suggestions, pick up ongoing work, and reduce the need to repeat context across conversations.

GPT-5.5 Instant is rolling out starting today to all ChatGPT users. Paid users can continue using GPT-5.3 Instant for three months through model configuration settings before it is retired.

ChatGPT for Excel and Google Sheets
ChatGPT for Excel and Google Sheets is now available globally, bringing ChatGPT into a sidebar in Microsoft Excel and Google Sheets so you can build, update, and understand spreadsheets in place. It can help with trackers, budgets, formulas, multi-tab files, scenario work, and spreadsheet cleanup, and supports Skills and apps where available.

Free and Go include limited usage; Plus and Pro use the same agentic usage limits as Codex. You can purchase additional credits if you need to go beyond plan limits.

Install ChatGPT for Excel from Microsoft Marketplace or ChatGPT from Google Workspace Marketplace, then sign in with an eligible ChatGPT account. Review outputs before relying on formulas or analysis.