
GPT‑5 is here - OpenAI
ChatGPT thinks harder on complex tasks and asks relevant follow-up questions to keep work moving. Every employee can get expert-level results without switching models.
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Introducing Lockdown Mode and Elevated Risk labels in ChatGPT Safety Feb 13, 2026
Introducing ChatGPT - OpenAI
Nov 30, 2022 · 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, …
Start using ChatGPT instantly - OpenAI
Apr 1, 2024 · Starting today, you can use ChatGPT instantly, without needing to sign-up. We're rolling this out gradually, with the aim to make AI accessible to anyone curious about its capabilities.
The ChatGPT home page - OpenAI Help Center
ChatGPT is free to use, and can now be accessed before creating an account at chatgpt.com. Simply enter your prompt in the text box to get started. For general questions about ChatGPT, please refer …
GPT-4 | OpenAI
Mar 14, 2023 · 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 …
Introducing ChatGPT search - OpenAI
Oct 31, 2024 · ChatGPT search connects people with original, high-quality content from the web and makes it part of their conversation. By integrating search with a chat interface, users can engage with …
Introducing GPT‑4o and more tools to ChatGPT free users
May 13, 2024 · We are beginning to roll out GPT‑4o to ChatGPT Plus and Team users, with availability for Enterprise users coming soon. We are also starting to roll out to ChatGPT Free with usage limits …
Introducing ChatGPT Atlas - OpenAI
Oct 21, 2025 · Getting started is easy: when you open Atlas for the first time, sign in to ChatGPT and bring your bookmarks, saved passwords, and browsing history with you by importing them from your …
GPT‑5.1: A smarter, more conversational ChatGPT - OpenAI
Nov 12, 2025 · If you check ChatGPT today, you may not see GPT‑5.1 available immediately. We plan to roll it out gradually over the next few days to help keep performance stable for everyone.