ChatGPT

Year: 2022
Creator: OpenAI research and product teams
Company: OpenAI
Location: San Francisco, California
Room: The Machine ↗

Description

ChatGPT is a chat program that gives users access to the OpenAI language models. OpenAI released it on November 30, 2022, as a free research preview that used a GPT-3.5 model with additional training from human feedback.

Importance

After the release of ChatGPT, OpenAI became one of the fastest-growing companies in the world. Nvidia GPUs are important to AI programs such as ChatGPT, and the Nvidia H100 is also in this room. In October 2025, Sam Altman said that 800 million people used ChatGPT each week.

Interesting fact

Analysts at UBS said that ChatGPT had approximately 100 million monthly users in January 2023, two months after its release.

Sources

Introducing ChatGPT ↗OpenAI · 2022-11-30
ChatGPT sets record for fastest-growing user base - analyst note ↗Reuters · 2023-02-01
Sam Altman says ChatGPT has hit 800M weekly active users ↗TechCrunch · 2025-10-06
Nvidia crosses into $1 trillion market cap before giving back gains ↗CNBC · 2023-05-30
ChatGPT reaches 100 million users two months after launch ↗The Guardian · 2023-02-02
OpenAI closes funding round at an $852 billion valuation ↗CNBC · 2026-03-31