“Usership for ChatGPT rose like a rocket until May 2023 but has more or less stabilized since then without significant further growth.”
Our reading, the sentence that was checked:
ChatGPT usership has more or less stabilized without significant growth since May 2023.
Assessment: Unresolved Evidence as of
Where and when Gary Marcus wrote it
Marcus on AI, The Sam Altman Playbook, paragraph 52.
- Said
- Source observed
- live page, full text, public
- Evidence as of
- the cutoff for this assessment
- Assessment recorded
- assessment marcus-the-sam-altman-playbook-17dd17-a1
We recorded 18 claims from this post. See every claim from this post.
The wording above is the version this site observed on 2026-10-29. The source may have been edited after 2024-05-05. This page does not claim the wording was captured then.
What the claim commits to
- Kind
- Observation
- Deadline, as the speaker wrote it
- None stated. This site does not add one.
- Deadline state when assessed
- No horizon
- Deadline state on 2026-10-29
- No horizon (the release’s reference date)
From the speaker
- Usership for ChatGPT
- until May 2023
- more or less stabilized since then
- without significant further growth
Our interpretation
- The main test is whether ChatGPT's overall active audience broadly plateaued between May 2023 and the post date.
- Usership ordinarily includes people using the website and mobile apps. Website visits are an imperfect proxy, not a count of distinct users.
- Significant growth means a clear, sustained increase beyond ordinary fluctuations; Marcus supplied no numerical threshold.
- April 2024 is the last complete calendar month before the post. Later publications may provide evidence about that month, but subsequent growth cannot settle this historical claim.
Counts as supported if: Consistent measurements covering ChatGPT's overall active audience show broadly unchanged usage from May 2023 through the period immediately preceding May 5, 2024.
Counts as contradicted if: Comparable measurements show a clear, sustained increase in ChatGPT's overall active audience during that period.
Retrospective: these criteria were written after the outcome was public.
Current assessment
Was it true for the period described?
Outcome: Unresolved
The record was checked, and the evidence available by the cutoff does not settle it.
Scored on a plain reading. The speaker named no measure for this claim, so it was judged on the reading an informed reader would take, stated below under our interpretation. Both reviews had to find that reading fair.
- Evidence as of
- Deadline state when assessed
- No horizon
- Assessment recorded
- Policy version
- 2026-10-28.7
Rationale
The readable reporting supports a plateau in website visits. It also reports growth in the US mobile-app audience. Those are different measurements, and neither establishes the change in ChatGPT's overall active audience. Scoring the broader usership claim from website traffic alone would make the result depend on a restriction Marcus did not state.
Limitations
- The website plateau evidence is secondary reporting.
- App audience growth may include people migrating from the website.
- Later growth outside the target period is not evidence against this observation.
Evidence (2 items)
Context only: Trendline,
flatlined
Why it matters here: This supports the narrower website-traffic plateau reading through April 2024. It cannot establish whether ChatGPT's combined active audience plateaued.
- Publisher
- Trendline
- Kind of source
- Secondary summary
- Describes events of
- Public from
Context only: TheWrap,
6.3 million
Why it matters here: The reported US app audience grew during the claimed plateau. This cautions against treating website visits as total usership, but its geography and interval do not settle the global claim.
- Publisher
- TheWrap
- Kind of source
- News report
- Describes events of
- Public from
What would settle it
A verified historical series of deduplicated active users across ChatGPT's website and apps, comparing May 2023 with April or early May 2024.
Where it was said (1)
Said once in the sources this register covers.
: Marcus on AI, The Sam Altman Playbook
Usership for ChatGPT rose like a rocket until May 2023 but has more or less stabilized since then without significant further growth.
- Where
- paragraph 52
- Published
- 2024-05-05
- Source observed
- , live page
- Access
- full text, public
History
Assessment versions
- Assessment marcus-the-sam-altman-playbook-17dd17-a1: Current. Outcome: Unresolved. Evidence as of 2026-10-28. Public date not recorded.
Recorded events
Assessment publishedBy this site
First assessment published after both reviews and the final-text check passed.