Introducing ChatGPT - OpenAI
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.
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GPT-4 | OpenAI
Training with human feedback We incorporated more human feedback, including feedback submitted by ChatGPT users, to improve GPT‑4’s behavior. We also worked with over 50 experts for early feedback in domains including AI safety and security.
GPT‑5.1: A smarter, more conversational ChatGPT - OpenAI
We’re upgrading the GPT-5 series with warmer, more capable models and new ways to customize ChatGPT’s tone and style. GPT-5.1 starts rolling out today to paid users.
Start using ChatGPT instantly - OpenAI
More than 100 million people across 185 countries use ChatGPT weekly to learn something new, find creative inspiration, and get answers to their questions. Starting today, you can use ChatGPT instantly, without needing to sign-up.
Introducing ChatGPT Plus - OpenAI
We’re launching a pilot subscription plan for ChatGPT, a conversational AI that can chat with you, answer follow-up questions, and challenge incorrect assumptions.
Introducing ChatGPT Go, now available worldwide - OpenAI
This early momentum helped inform our decision to make ChatGPT Go available globally. Starting today, ChatGPT Go is rolling out everywhere ChatGPT is available. In the US, Go is available for $8 per month.
ChatGPT - OpenAI Help Center
Chat and File Retention Policies in ChatGPT Understand how your chats and files are stored, how long they are retained, and how you can manage or delete them when needed.