Does ChatGPT have Custom Instructions?

ChatGPT supports Custom Instructions. Set persistent, global rules for how the AI should behave or respond across all chats (e.g., always output Python code, or never use emojis). ChatGPT is an industry-leading conversational AI model engineered by OpenAI for multi-domain problem solving and content creation.

Tool

🤖 ChatGPT by OpenAI

Feature

Custom Instructions · Memory & Context

Status

Yes

Pricing

Available on the free plan.

Last verified

2026-08-05