# Myth: ChatGPT Memory Is Where Your Work Rules Belong

> Myth vs fact: ChatGPT memory is not where work rules belong. Put standing rules in custom instructions and one client's rules in its Project.

Source: https://learn.ynteractive.com/content/visual/myth-chatgpt-memory-holds-your-rules · Updated 2026-10-17 · Free from Stepthrough (https://learn.ynteractive.com)

[Myth vs fact](https://learn.ynteractive.com/content/visual#format-myth-fact) · 2 slides · [ChatGPT](https://learn.ynteractive.com/content/tool/chatgpt)

By [Robert Breen](https://learn.ynteractive.com/content/about) · Published October 17, 2026 · From the free lesson [ChatGPT Projects: Keep Your Brand Voice, Files and Instructions in One Place](https://learn.ynteractive.com/content/chatgpt-projects-brand-voice)

Myth vs fact: ChatGPT memory is not where work rules belong. Put standing rules in custom instructions and one client's rules in its Project.

Swipe or scroll sideways for all 2 slides. The whole guide is written out below.

## The myth

Memory is where your **work rules** belong.

## The fact

ChatGPT decides what memory saves, and it **may carry an old detail** into a new task. Write the rules you always want in **custom instructions**, and one client's rules in that **Project's instructions**, which win over custom instructions.

From the Stepthrough AI glossary: ChatGPT memory, Project instructions

**The full definition:** [What is ChatGPT memory?](https://learn.ynteractive.com/content/glossary/chatgpt-memory) in the AI glossary, with an example from a free lesson, common confusions and tips.

Businesses and people in the examples are made up. The steps, screens and wording come from the free lesson and the Stepthrough glossary and prompt library.

## Do it yourself, free

**ChatGPT Projects: Keep Your Brand Voice, Files and Instructions in One Place**. Set up a ChatGPT Project with your brand voice instructions, your price list and your style guide, so every new chat already knows your business. You do every step yourself in a practice copy of ChatGPT, it checks your work as you go, and “Do it for me” finishes any step you get stuck on. Free, and nothing touches your real accounts.

[Start the free lesson](https://learn.ynteractive.com/modules/chatgpt-projects-brand-voice)

[Or read the full step-by-step guide](https://learn.ynteractive.com/content/chatgpt-projects-brand-voice)

## Related terms

Plain-English definitions, each with an example from a free lesson.

[ChatGPT memory](https://learn.ynteractive.com/content/glossary/chatgpt-memory) · [Custom instructions (ChatGPT)](https://learn.ynteractive.com/content/glossary/custom-instructions) · [Project instructions](https://learn.ynteractive.com/content/glossary/project-instructions) · [Persistent agent](https://learn.ynteractive.com/content/glossary/persistent-agent) · [ChatGPT plugin](https://learn.ynteractive.com/content/glossary/chatgpt-plugin) · [Style matching](https://learn.ynteractive.com/content/glossary/style-matching)

[The full AI glossary](https://learn.ynteractive.com/content/glossary)

## From the blog

- [ChatGPT Custom Instructions vs Project Instructions for Work](https://learn.ynteractive.com/content/blog/chatgpt-custom-instructions-vs-project-instructions): Custom instructions apply to every ChatGPT chat; project instructions apply to one client's chats and win. Where each rule goes, and memory's role.
- [ChatGPT Projects: One Home per Client, Set Up Once](https://learn.ynteractive.com/content/blog/chatgpt-project-for-each-client): Stop re-explaining each client to ChatGPT. Give every client one Project with instructions, files and project-only memory. Setup steps and upkeep.
- [Does ChatGPT Remember Other Chats? Chat History vs Memories](https://learn.ynteractive.com/content/blog/chatgpt-reference-chat-history): ChatGPT can remember other chats through saved memories and the Reference chat history setting. What each one does, and how to control both at work.

## More visual guides

- [Mistake: Re-Explaining the Client in Every ChatGPT Chat](https://learn.ynteractive.com/content/visual/mistake-re-explaining-the-client-every-chat): A common ChatGPT mistake: explaining the same client again in every new chat. Give each client one Project with its own instructions and files.
- [Myth: A New ChatGPT Chat Is a Private Chat](https://learn.ynteractive.com/content/visual/myth-new-chat-means-private): Myth vs fact: a new ChatGPT chat is saved like any other and memory can carry details. For a sensitive job, use Temporary Chat and remove names first.
- [Reply to case update emails with ChatGPT, safely](https://learn.ynteractive.com/content/visual/law-reassuring-draft-myth): "Did they respond? When is our court date? Are we going to win?"

[All visual guides](https://learn.ynteractive.com/content/visual) · [All free tutorials](https://learn.ynteractive.com/content)