This is a new feature for ChatGPT, allowing users to set persistent preferences for how the AI interacts with them.
- Business
- Tailor ChatGPT's responses to specific business roles and workflows for more relevant and efficient task completion.
- Everyday users
- Get more personalized and helpful answers from ChatGPT by telling it about your interests and how you want it to communicate.
Users can now permanently set preferences for ChatGPT, making it a more personalized and useful AI assistant for daily tasks.
Personalize ChatGPT with custom instructions

See how custom instructions help personalize ChatGPT for your role, preferences, and work.
Opening of the original on OpenAI NewsFrom Subvolts
Summary and analysis by Subvolts editorial, AI-assisted.
OpenAI introduced custom instructions for ChatGPT, allowing users to personalize the AI's responses. Users can now tell ChatGPT about themselves, their preferences, and how they want it to respond. This feature aims to make ChatGPT more helpful and tailored to individual needs and roles, enhancing its utility for various tasks.
You can now tell ChatGPT about yourself and what you want it to do. It will remember these instructions to give you better, more personalized answers every time you chat.
This feature makes ChatGPT more adaptable for individual users and specific professional contexts. It moves beyond generic responses to a more personalized assistant. While competitors offer customization through fine-tuning or specific prompts, custom instructions provide a persistent, user-defined layer of personalization accessible to all. Future developments may involve deeper integration of these instructions into model behavior or more granular control over their application.
- Product: ChatGPT
- Feature: Custom instructions
- Purpose: Personalize responses based on user role and preferences
The Playbook: reusable how-tos, prompts, configs and tips pulled out of the news. From the Playbook, matched to the product and topics of this item.
- RuleAllow WebSocket traffic for full ChatGPT functionalityPermit WebSocket traffic over TCP port 443 to ensure ChatGPT features function correctly. · 10 min
- ToolDeep research in ChatGPT Work and CodexConduct deep research across the web, files, and apps, then generate editable documents with citations. · 10 min
- Model pickGPT-5.3-Codex for agentic coding tasksUse GPT-5.3-Codex, the most capable agentic coding model, for advanced coding tasks. · 5 min
- ToolZendesk and OneNote plugins for ChatGPT and CodexIntegrate Zendesk for support tickets and OneNote for notes within ChatGPT and Codex. · 5 min
Questions people ask
- What are custom instructions for ChatGPT?
- Custom instructions allow users to provide ChatGPT with information about themselves and how they want it to respond, personalizing the AI's output.
- How do custom instructions help users?
- They help make ChatGPT more useful by tailoring its responses to your specific role, preferences, and work, leading to more relevant and helpful interactions.
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Page generated Oct 19, 2026. Summaries are Subvolts' own; the story belongs to OpenAI News.

















