Historical context: This article concerns reporting and product announcements from 2023. Its figures and offers are not current estimates or prices.
In August 2023, ChatGPT’s estimated worldwide website visits fell for a third consecutive month. This historical traffic snapshot did not establish a decline in all users of the service. Analysts considered the return of the academic year a possible explanation for a subsequent recovery, not a proven cause.
ChatGPT, OpenAI’s conversational AI tool, launched in November 2022. A UBS estimate reported by Reuters put its January 2023 monthly active users at 100 million; this was an analyst estimate, not an OpenAI user census. Contemporary Reuters reporting of Similarweb estimates said average website visit duration fell from 8.7 minutes in March 2023 to seven minutes in August. Website engagement is not the same measure as registered users, mobile-app activity or API usage.
June and July 2023 each saw roughly 10% declines in worldwide website visits, according to the contemporary reporting. August’s decline was about 3%, while US visits rose 0.4%. Crucially, Similarweb’s September 7 analysis reported that unique website visitors rose 0.3% worldwide and 3% in the US that month. Visits and unique visitors therefore should not be described interchangeably as active users.
College-age visitors were a substantial minority, not a majority, of ChatGPT’s measured adult website audience. Similarweb did not track underage users and used the 18–24 age group as a proxy when discussing student patterns. David F. Carr described a summer decline in that age group’s share and a possible recovery as school resumed; this was a hypothesis about the observed pattern.
A May 2023 survey by Intelligent.com involving 1,223 US college students reported that 30% had used ChatGPT for schoolwork during the 2022–2023 academic year. These were self-reported survey findings, not a census of students. Such use raised concerns about originality, but AI detection software could not ensure it: OpenAI withdrew its own classifier in July 2023 because of low accuracy.
The University of Michigan Law School introduced restrictions on using AI tools such as ChatGPT to draft admissions essays in that period. Its admissions dean discussed the policy in A2Z episode 56. This is historical admissions context, not a statement of every institution’s current policy.
Concerns about model quality also attracted attention, but the traffic data did not show that accuracy changes caused the decline in visits. In the July 18, 2023 first version of a Stanford/UC Berkeley study, GPT-4’s score on a specific prime-number identification test fell from 97.6% for the March version to 2.4% for the June version. Those percentages were not an overall ChatGPT accuracy score.
The researchers emphasized that model behavior could change over short periods and warranted continued evaluation. Their later October 2023 revision expanded the evaluation and reported different results for a prime-versus-composite benchmark. The original figures above identify the earlier version rather than treating unlike tests as interchangeable.
The chatbot market was also becoming more crowded. Anthropic introduced Claude Pro on September 7, 2023 at $20 per month in the US (£18 in the UK), alongside a free tier. OpenAI had introduced ChatGPT Plus at $20 per month in February 2023. These are historical launch prices, not current plan comparisons. Whether competition or the school calendar explained a lasting traffic trend could not be settled by one month’s website estimates.
Contemporary reporting: Reuters report on the August 2023 traffic estimates.
Historical adoption estimate: Reuters reporting of the February 2023 UBS estimate.
