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OpenAI's GPT-4o Gives ChatGPT a Big Traffic Bump

Traffic to ChatGPT is exceeding 100 million visits per day, according to Similarweb.

 & Michael Kan Principal Reporter

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The introduction of OpenAI's new AI model has prompted a boom in web traffic to ChatGPT.

Last week, OpenAI announced GPT-4o, a more robust AI model for free and paid users. Since then, traffic to the ChatGPT.com domain has surged, exceeding 100 million visits per day, according to traffic analysis provider Similarweb.

On May 13, traffic to ChatGPT reached 96.3 million visits before surpassing 100 million visits over the next two days, Similarweb said in a blog post.

(SimilarWeb)

To put things in perspective, ChatGPT previously set a monthly high of 1.8 billion visits in May 2023. If current traffic trends continue, ChatGPT should shatter that record with 2.3 billion visits. 

"In the seven days leading up to May 17, web traffic for chatgpt.com was up 27.7% versus the previous week, and traffic to the openai.com corporate domain was up 25%," Similarweb says. "Over that same period, the daily active user count for the ChatGPT mobile app was up 11.5%, based on combined iOS and Android users in the US."

Interest in ChatGPT appeared to peak a year ago before hitting a summer slump in 2023, possibly because many kids were out of school. However, the new traffic estimates from Similarweb suggest ChatGPT still has plenty of room to grow, despite increasing competition from other chatbots such as Google’s Gemini. 

The traffic surge also comes after OpenAI migrated the chatbot’s original domain from chat.openai.com to chatgpt.com, making it easier for people to discover. In addition, users no longer need to sign in with an OpenAI account to use the chatbot. 

Despite the increasing user traffic, there are signs that many Americans are unaware of ChatGPT. In March, Pew Research published survey results that found only 23% of US adults had ever used ChatGPT.

About Our Expert

Michael Kan

Michael Kan

Principal Reporter

My Experience

I've been a journalist for over 15 years. I got my start as a schools and cities reporter in Kansas City and joined PCMag in 2017, where I cover satellite internet services, cybersecurity, PC hardware, and more. I'm currently based in San Francisco, but previously spent over five years in China, covering the country's technology sector.

Since 2020, I've covered the launch and explosive growth of SpaceX's Starlink satellite internet service, writing 600+ stories on availability and feature launches, but also the regulatory battles over the expansion of satellite constellations, fights with rival providers like AST SpaceMobile and Amazon, and the effort to expand into satellite-based mobile service. I've combed through FCC filings for the latest news and driven to remote corners of California to test Starlink's cellular service.

I also cover cyber threats, from ransomware gangs to the emergence of AI-based malware. In 2024 and 2025, the FTC forced Avast to pay consumers $16.5 million for secretly harvesting and selling their personal information to third-party clients, as revealed in my joint investigation with Motherboard.

I also cover the PC graphics card market. Pandemic-era shortages led me to camp out in front of a Best Buy to get an RTX 3000. I'm now following how the AI-driven memory shortage is impacting the entire consumer electronics market. I'm always eager to learn more, so please jump in the comments with feedback and send me tips.

The Best Tech I've Had:

  • My first video game console: a Nintendo Famicom
  • I loved my Sega Saturn despite PlayStation's popularity.
  • The iPod Video I received as a gift in college
  • Xbox 360 FTW
  • The Galaxy Nexus was the first smartphone I was proud to own.
  • The PC desktop I built in 2013, which still works to this day.

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