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
1,036 published updates
Spring Update
Introducing GPT‑4o and making more capabilities available for free in ChatGPT.
Introducing GPT-4o and more tools to ChatGPT free users
Title: Introducing GPT-4o and more tools to ChatGPT free users
Introducing the Model Spec
We’re sharing a first draft of the Model Spec(opens in a new window), a new document that specifies our approach to shaping desired model behavior and how we evaluate tradeoffs when conflicts arise. It brings together documentation used at OpenAI today, our experience and ongoing research in designing model behavior, and more recent work, including inputs from domain experts, that guides the development of future models. It is not exhaustive, and we expect it to change over time. The approach includes:
Our approach to data and AI
Title: Our approach to data and AI
Understanding the source of what we see and hear online
Title: Understanding the source of what we see and hear online
API Partnership with Stack Overflow
Title: API Partnership with Stack Overflow
Latest ChatGPT videos
627 published videos
YouTube
Setup with ChatGPT
YouTube
Grow With ChatGPT
YouTube
Advent Accelerates Deals with ChatGPT + Codex
ChatGPT + Codex are a one-two punch for investment firms. "Having the ability to connect your deal folder with all of the context, and then be able to ask ChatGPT and Codex real time questions has been really impactful to our workflows,"...
YouTube
Builders Unscripted: Ep. 4 - Pietro Schirano
Pietro Schirano, Founder & CEO of MagicPath sits down with Romain Huet to talk about pushing the creative edges of GPT-5.5 and using Codex to turn ideas into software. 03:45 Images into sound 07:57 Multi-agent Codex workflows 14:34 Revivin...
YouTube
Verso, l'entreprise qui ne dort jamais
Découvrez comment Verso développe une entreprise véritablement AI-native. Lors de cette session enregistrée lors de l'événement OpenAI France en juin 2026, Lydia Bellahouel, cofondatrice et CEO de Verso, partage la manière dont son équipe s...
YouTube
What if plants could talk?
Now our plants won't shut up. Give your plants a voice: https://github.com/openai/planttalk
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.
