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
A look at the controls, boundaries, and telemetry OpenAI uses to govern coding agents in real workflows.
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
Build Hour: Prompt Caching
Build faster, cheaper, and with lower latency using prompt caching. This Build Hour breaks down how prompt caching works and how to design your prompts to maximize cache hits. Learn what’s actually being cached, when caching applies, and ho...
YouTube
Start It With ChatGPT
Make that idea happen, no matter how wild it seems, with ChatGPT 🎧: The Letter Live at The Fillmore by Joe Cocker
YouTube
Fix With ChatGPT
Sharpen your skills and hit the road with ChatGPT. 🎧: Brain by The Action
YouTube
Codex checks its work for you
Javi walks through a logging refactor and shows why Codex's self-verification is a step change: the model runs the app, finds the right session, and proves logs still flow. Takeaways: - Codex can validate its work by running tests and laun...
YouTube
Updates to deep research in ChatGPT
Deep research in ChatGPT is now powered by GPT-5.2. Now in deep research you can: - Connect to apps in ChatGPT and search specific sites - Track real-time progress and interrupt with follow-ups or new sources - View fullscreen reports Rol...
YouTube
How PMs use the Codex app
Alexander Embiricos (a Product Manager on the Codex team) shows how he uses Codex skills to make a small product change, diagnose a Buildkite failure, and improve the skills so the next PR goes faster. Takeaways: - Skills are a shortcut fo...
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.
