ChatGPT's weekly active users reached 400 million, doubling in six months

According to the latest "ChatGPT 2024 User Growth Report" released by venture capital firm Andreessen Horowitz (a16z) , OpenAI's ace product ChatGPT once again showed amazing user growth momentum in the second half of 2024.

Double the weekly active count in just six months

Time is back to November 2022. When ChatGPT was still a "research preview version", it became the fastest application in history to reach 100 million monthly active users with lightning speed. It took only two months to get on the Rockets. This speed makes other applications beyond the reach, and they sigh "The young man is terrifying"!

By November 2023, ChatGPT ushered in a new milestone, with 100 million active users per week. The subsequent growth is even more outrageous! Just a year later, in December 2024, this number soared to 300 million , and then reached 400 million in February 2025. The report pointed out that it took ChatGPT nine months (from November 2023 to August 2024) to grow from 100 million weekly active users to 200 million . But what is even more surprising is that it took less than six months to grow from 200 million to 400 million . This growth rate is like installing "turbocharged"!

After "novelty", relying on strength, the "combination punch" effect is significant

a16z report analysis believes that consumers' initial interest in ChatGPT is more out of "novelty". Everyone is like watching a novel toy, wanting to try out what this magical AI can do. But as time goes by, what really keeps ChatGPT's user growth is its constantly iterative and upgraded functions and models.

Especially the release of GPT-4o, its new multimodal function has directly triggered a surge in user usage from April to May 2024 . Following closely behind, the launch of the advanced voice mode has driven a new round of user growth from July to August 2024 . The debut of the o1 model series once again added fire to user growth from September to October 2024 . After this set of "combination punches", the effect is amazing!

Stable performance on the mobile terminal

It is worth mentioning that ChatGPT has always performed very stably on the mobile side. Over the past year, ChatGPT mobile app users have maintained a monthly growth of 5% to 15% . Currently, of ChatGPT's 400 million active users per week, 175 million are accessed through mobile devices . It seems that everyone has to "teasy" ChatGPT anytime and anywhere!

Although DeepSeek is strong, ChatGPT is still strong

The report also focused on the influence of competitors such as DeepSeek. The DeepSeek app reached the second place in the world in just 10 days, and won the second place in mobile in February, even seizing 15% of ChatGPT's mobile users. Although DeepSeek has slightly higher user stickiness on mobile than Perplexity and Claude, it still lags behind ChatGPT in this regard.

However, according to data from market intelligence provider Similarweb, ChatGPT still ranks first in terms of monthly independent visits to the network and monthly active users on the mobile side . It seems that although the "new wave" is catching up, ChatGPT, the "new wave" is still very strong!