
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, …
OpenAI
We believe our research will eventually lead to artificial general intelligence, a system that can solve human-level problems. Building safe and beneficial AGI is our mission.
GPT-5 is here - OpenAI
Try it in ChatGPT Read the research 00:00 ChatGPT For developers For business ChatGPT powered by GPT-5 Expert intelligence for everyone GPT‑5 is smarter across the board, providing more useful …
Start using ChatGPT instantly - OpenAI
Jan 31, 2024 · It's core to our mission to make tools like ChatGPT broadly available so that people can experience the benefits of AI. More than 100 million people across 185 countries use ChatGPT …
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 GPT-5 - OpenAI
Aug 7, 2025 · How to use GPT‑5 GPT‑5 is the new default in ChatGPT, replacing GPT‑4o, OpenAI o3, OpenAI o4-mini, GPT‑4.1, and GPT‑4.5 for signed-in users. Just open ChatGPT and type your …
Introducing GPT-4o and more tools to ChatGPT free users
May 13, 2024 · In line with our mission, we are focused on advancing AI technology and ensuring it is accessible and beneficial to everyone. Today we are introducing our newest model, GPT‑4o, and will …
GPT-5.1: A smarter, more conversational ChatGPT - OpenAI
Nov 12, 2025 · GPT‑5.1 Instant: our most-used model, now warmer, more intelligent, and better at following your instructions. GPT‑5.1 Thinking: our advanced reasoning model, now easier to …
Writing with AI - OpenAI
Writers are using ChatGPT as a sounding board, story consultant, research assistant, and editor—to talk out ideas, find the right word, clarify their thinking, and get feedback on structure and flow.
Introducing ChatGPT agent: bridging research and action
Jul 17, 2025 · On Humanity’s Last Exam *, an evaluation that measures AI’s performance across a broad range of subjects on expert-level questions, the model powering ChatGPT agent scores a new …