chatgpt-memory-basics
ITIAN ChatGPT Academy
Technology Simplified — Solutions That Work
Memory Basics
Understand how ChatGPT can use relevant context from earlier interactions, decide what is appropriate to remember, and keep control of your personalisation settings.
Learning Outcomes
By the end of this lesson, you should be able to:
Explain Memory
Describe Memory as personalisation context—not perfect recall, a permanent archive or a source of verified truth.
Recognise the Sources
Distinguish remembered context, past chats, Custom Instructions and other available sources.
Choose Appropriately
Decide when a detail is suitable for Memory, another personalisation layer or no storage at all.
Stay in Control
Find Memory settings, inspect what is remembered and use Temporary Chat when you do not want personalisation memory used or created.
Memory reduces repetition—but it is selective
When enabled, Memory can use useful context to make responses more relevant. It does not reproduce every earlier message, guarantee that a detail remains current or replace your authoritative records.
Memory helps personalise a conversation; your own documents and verified sources remain the source of truth.
The Four Ideas to Separate
Current Chat
The messages and files available in the conversation you are using now.
Memory
Useful personal context ChatGPT may retain or synthesise when Memory is enabled.
Chat History
Your stored conversations; depending on settings, relevant past context may inform future responses.
Custom Instructions
Explicit wording you deliberately write about what ChatGPT should know and how it should respond.
Memory Experiences During the Rollout
The exact screen can vary by plan, country, account and device. Look for one of these layouts under Settings → Personalization → Memory.
Newer Memory Summary
A continuously updated summary of important context. It may let you correct text, request that something not be mentioned, refresh the summary or review sources that informed a response.
The visible summary may not show every factor used for personalisation.
Legacy Memory Controls
Reference saved memories covers remembered details, while Reference chat history allows useful information from past conversations to inform new responses.
Saved-memory controls and availability can differ by plan.
If your screen looks different
Use the controls that appear on your account and follow their descriptions. Do not assume a missing option means something is broken; staged rollouts and managed-workspace policies can change availability.
What Memory Can Use
| Possible source | How it may help | Important boundary |
|---|---|---|
| Remembered personal context | Preferences, ongoing interests and useful background | May change or become outdated; review it. |
| Past chats | Relevant information from earlier conversations | ChatGPT does not necessarily retain every detail. |
| Custom Instructions | Your explicit response and context preferences | These are written guidance, not automatically discovered facts. |
| Files | Relevant information from a file library where available | Availability depends on plan and region; files require their own review. |
| Connected apps | Authorised context such as connected Gmail where available | Only connect trusted services and review permissions. |
When available, a book or source control beneath a response may show some of the context used for personalisation. It may not show every influence.
Suitable and Unsuitable Memories
Often Suitable
- Your preferred name or language convention.
- A stable learning goal.
- A dietary preference relevant to recommendations.
- A recurring accessibility need you choose to share.
- A broad, non-confidential area of work.
Do Not Store
- Passwords, private keys or authentication codes.
- Banking or payment credentials.
- Confidential client or employee information.
- Information you are not authorised to disclose.
- Anything you would not want used for personalisation.
Better in Custom Instructions
- “Use New Zealand English.”
- “Teach step by step.”
- “Flag assumptions and uncertainty.”
- “Use accessible, semantic HTML.”
Better in a Project
- One academy’s page list.
- Client-specific requirements.
- Brand assets and design rules.
- Authoritative project files.
- Temporary milestones and deadlines.
Interactive Memory Decision Guide
Describe only a generalised, non-sensitive example. This local tool does not transmit or save your entry.
Find and Understand the Controls
Open Personalization
Select your profile, open Settings and choose Personalization. Labels can vary slightly by surface.
Open Memory
Look for Memory, Memory Summary or saved-memory and chat-history controls.
Read Each Description
Confirm which sources the control can use and whether another switch depends on it.
Ask What Is Remembered
In a normal chat, ask “What do you remember about me?” Then compare the answer with the available summary or management screen.
Check Sources
Where available, use the source indicator beneath a personalised response to understand why context was used.
Choose Deliberately
Enable only the personalisation you want. We will cover correction and deletion in the next lesson.
Temporary Chat
What It Does
Temporary Chat does not access or create memories for personalisation, does not appear in history and is not used to improve models. OpenAI may retain a copy for up to 30 days for safety purposes.
What Still Applies
Enabled Custom Instructions still apply. Limited prior context may also be used for safety and security in rare high-risk situations.
How to Start
Open a new chat and select the pill-shaped Temporary control in the top-right area where it is available.
Not a Secret Vault
Continue to minimise sensitive information. If a GPT uses third-party actions, information sent to those parties follows their privacy policies.
Important Deletion Distinctions
| Action | What it does | What it does not necessarily do |
|---|---|---|
| Turn Memory off | Stops the selected personalisation behaviour | Does not automatically delete existing saved memories. |
| Delete a chat | Removes that conversation from your history | Does not automatically remove a saved memory created from it. |
| Delete a saved memory | Stops that saved memory being used in future chats | Does not erase mentions already present in old conversations. |
| Turn off reference chat history | Stops past-chat reference; associated remembered information is scheduled for deletion | Does not necessarily delete the original conversations themselves. |
| Fully remove a detail | Requires removal from every place it appears | Cannot be achieved by changing only one unrelated control. |
Next lesson: Managing Memory
The next page gives the complete review, correction, deletion and troubleshooting workflow. For now, remember that settings, memories and chats are separate things.
Common Misunderstandings
“Memory stores everything.”
No. It is selective, can change and may not preserve every past-chat detail.
“Memory makes answers correct.”
No. Remembered context can be wrong or outdated. Verify important facts with authoritative sources.
“Turning it off deletes it.”
No. Turning off a control and deleting retained information are different actions.
“Temporary means invisible everywhere.”
No. Temporary Chat has documented retention and third-party-action boundaries. Continue using sound data-minimisation practices.
Recommended: 16:9 • Captioned • New and legacy layouts
Future Guided Demonstration
This video will show both current Memory experiences where available.
- Find Memory settings.
- Review the Memory Summary.
- Inspect personalisation sources.
- Start and verify a Temporary Chat.
Practical Activity: Memory Readiness Check
Complete these checks without recording private details on this page.
0 of 10 completed — begin by locating Memory settings.
Knowledge Check
Answer all five questions, then check your result.
Official Sources and Further Reading
Reviewed against current first-party OpenAI guidance on 13 July 2026.
OpenAI guidance used in this lesson
- Memory FAQ — current and legacy experiences, sources, controls and deletion distinctions.
- Is Memory different from Custom Instructions? — remembered context compared with explicit guidance.
- Temporary Chat FAQ — memory, history, training and retention behaviour.
- Data Controls FAQ — managing how eligible content is used.
Lesson Summary
Seven ideas to remember
- Memory provides selective personalisation context, not perfect recall.
- Custom Instructions are explicit; Memory can develop from conversations and other available sources.
- The newer Memory Summary and legacy switches may appear on different accounts.
- Memory is not an authoritative database and can become outdated.
- Temporary Chat does not access or create personalisation memories, but enabled Custom Instructions still apply.
- Turning off Memory, deleting a chat and deleting a memory are separate actions.
- Never store passwords, credentials or unauthorised confidential information.