ChatGPT
OpenAI
OpenAI started in 2015 as a nonprofit research lab dedicated to ensuring artificial general intelligence benefits all of humanity. Read more →
Latest ChatGPT updates
946 published updates
Running Codex safely at OpenAI
Title: Running Codex safely at OpenAI
Scaling Trusted Access for Cyber with GPT-5.5 and GPT-5.5-Cyber
Title: Scaling Trusted Access for Cyber with GPT-5.5 and GPT-5.5-Cyber
Advancing voice intelligence with new models in the API
Title: Advancing voice intelligence with new models in the API
Simplex rethinks software development with Codex
Simplex is using ChatGPT Enterprise and Codex to validate AI-driven development and scale more productive workflows.
Introducing Trusted Contact in ChatGPT
Connecting you to someone you trust when it matters most.
Parloa builds service agents customers want to talk to
Parloa uses OpenAI models to simulate, evaluate, and run voice-driven customer service systems for the enterprise.
Latest ChatGPT videos
533 published videos
YouTube
Using custom instructions in Operator
YouTube
Introduction to Operator & Agents
Begins at 10am PT Join Sam Altman, Yash Kumar, Casey Chu, and Reiichiro Nakano as they introduce and demo Operator.
YouTube
OpenAI o3 and o3-mini—12 Days of OpenAI: Day 12
Sam Altman, Mark Chen, Hongyu Ren, and special guest Greg Kamradt, President of ARC Prize Foundation, introduce and discuss OpenAI o3, o3-mini, along with a call for safety testing and a new alignment strategy for o-series models.
YouTube
Work with Apps—12 Days of OpenAI: Day 11
Kevin Weil, Justin Rushing, and John Nastos introduce and demo Work with Apps.
YouTube
1-800-ChatGPT is Here
You can now talk to ChatGPT by calling 1-800-ChatGPT (1-800-242-8478) in the U.S. and Canada or by sending a WhatsApp message to the same number—available everywhere ChatGPT is. To start, people in the U.S. will get 15 minutes per month of...
YouTube
1-800-CHAT-GPT—12 Days of OpenAI: Day 10
Kevin Weil, Antonia Woodford, and Amadou Crookes introduce and demo 1-800-CHAT-GPT and ChatGPT in WhatsApp.
OpenAI started in 2015 as a nonprofit research lab dedicated to ensuring artificial general intelligence benefits all of humanity. In November 2022, ChatGPT changed the public's perception of AI overnight — reaching one million users in five days and accelerating the entire industry by years. Today, OpenAI operates across consumer products, enterprise tools, and a developer API that powers thousands of applications worldwide, making it the most recognized name in modern AI.
Timeline
Founded as a nonprofit AI research lab in San Francisco.
GPT-1 released; first transformer-based language model.
GPT-3 launched, opening the API to developers.
ChatGPT released — reaches 1 million users in 5 days.
GPT-4 released; plugins and multimodal capabilities added.
GPT-4o and o1 reasoning models launched; Sora video model unveiled.
o3 and o4-mini released; GPT-4.5 and GPT-5 roadmap confirmed.
