Sam Altman says ChatGPT has hit 800M weekly active users 

OpenAI CEO Sam Altman said Monday that ChatGPT has reached 800 million weekly active users, marking an increase of adoption among consumers, developers, enterprises, and governments.  

ChatGPT’s impressive growth comes as OpenAI is on a race to secure as many AI chips and build as much AI infrastructure as possible. In August, OpenAI said it was on the cusp of reaching 700 million weekly active users, already an increase from 500 million weekly active users at the end of March. 

“Today, 4 million developers have built with OpenAI,” Altman said. “More than 800 million people use ChatGPT every week, and we process over 6 billion tokens per minute on the API. Thanks to all of you, AI has gone from something people play with to something people build with every day.”

Altman made the announcement during the keynote presentation for OpenAI’s Dev Day, which also included announcements for new tools for building apps inside of ChatGPT as well as constructing more complex agentic systems.

“This will enable a new generation of apps that are interactive, adaptive, and personalized, that you can chat with,” Altman said. 

Launched in November 2022, ChatGPT saw unprecedented user growth almost immediately, becoming both the preeminent consumer AI product and one of the fastest-growing online services ever. More recently the tool expanded into proactive services with OpenAI Pulse, sending customized morning briefs to participating users. The service has also been dogged by concerns about sycophancy and AI-induced delusions, particularly in the recent case of Allan Brooks, who was misled into believing he’d made a novel mathematical discovery with ChatGPT’s help.

Still legally designated as a nonprofit, OpenAI became the most valuable privately held company in the world on Thursday, after a private stock sale of $6.6 billion in shares valued the company at $500 billion. The company has also been launching new products at a blistering pace, releasing a new version of its video-generation tool Sora last week, paired with an accompanying social media network. That same week, the company partnered with Stripe to launch a platform for agentic commerce.