Custom instructions for ChatGPT

Personalizing ChatGPT

Learn how to personalize ChatGPT using custom instructions and memory to get more relevant, consistent, and tailored responses.

ChatGPT Codex settings

Learn how to configure Codex settings, including personalization, detail level, and permissions, to run tasks smoothly and customize your workflow.

ChatGPT can now see, hear, and speak

Introducing ChatGPT and Whisper APIs

New ways to manage your data in ChatGPT

ChatGPT users can now turn off chat history, allowing you to choose which conversations can be used to train our models.

Introducing GPTs

You can now create custom versions of ChatGPT that combine instructions, extra knowledge, and any combination of skills.

What we’re optimizing ChatGPT for

We build ChatGPT to help you thrive in all the ways you want. Learn how we're improving support for tough moments, have rolled out reminders to take breaks, and are working on better life advice, all guided by expert input.

Introducing ChatGPT

We’ve trained a model called ChatGPT which interacts in a conversational way. The dialogue format makes it possible for ChatGPT to answer followup questions, admit its mistakes, challenge incorrect premises, and reject inappropriate requests.

Prompting fundamentals

Learn prompting fundamentals and how to write clear, effective prompts to get better, more useful responses from ChatGPT.

Memory and new controls for ChatGPT

We’re testing the ability for ChatGPT to remember things you discuss to make future chats more helpful. You’re in control of ChatGPT’s memory.

GPT-5.1: A smarter, more conversational ChatGPT

We’re upgrading the GPT-5 series with warmer, more capable models and new ways to customize ChatGPT’s tone and style. GPT-5.

Introducing group chats in ChatGPT

Collaborate with others, and ChatGPT, in the same conversation.