ClaimsGary Marcus

“the bubble won’t burst soon (even if the use cases to justify it aren’t really there).”

Gary Marcus, author, Marcus on AI 31 March 2024 When Will the GenAI Bubble Burst? (Marcus on AI)

Prediction Economics and markets

If OpenAI releases a truly mindblowing GPT-5 in 2024, the generative AI bubble will not burst soon.

Unresolvable The public record could not settle it.

Prediction: Statements about events outside the person's control, checked once they fell due: did they come true?

What would count as true or false

This is a conditional prediction: the condition is that OpenAI released a truly mindblowing GPT-5 in 2024. First test the condition: if OpenAI released no model called GPT-5 in 2024, or released one not widely regarded as a major leap, the condition failed and the prediction was never tested; it should then be marked unresolvable, not true or false. If the condition held, judge 'soon' as roughly 12 to 18 months after March 2024 (through end-2025). True: no generative AI bubble burst in that window, i.e. no sustained collapse of generative AI investment and valuations (such as a fall of 50% or more in major AI-linked stock indices or valuations, or a sharp, widely reported drop in AI venture funding and capex). Mostly true: a significant but temporary correction (e.g. a sharp sell-off that recovered within months) that commentators did not generally call the bubble bursting. Mixed: a substantial, lasting downturn in part of the sector (e.g. startups) while major players held. Mostly false: a correction widely described as the start of the bubble bursting. False: a clear bubble collapse within the window.

Set before the research began.

Evidence (10)

  1. E1 GPT Model Timeline (GPT-1 to GPT-5.x) | AI Wiki AI Wiki · 7 July 2026

    “The full order is GPT-1 (2018), GPT-2 (2019), GPT-3 (2020), GPT-3.5 and ChatGPT (2022), GPT-4 (2023), GPT-4 Turbo (2023), GPT-4o (2024), o1 (2024), GPT-4.5 (early 2025), o3 and o4-mini (2025), GPT-5 (2025)”
  2. E2 GPT Model Timeline (GPT-1 to GPT-5.x) | AI Wiki AI Wiki · 7 July 2026

    “GPT-5, released August 7, 2025, was OpenAI's first "unified" model, combining the fast responses of the GPT line with the deliberate reasoning of the o-series behind an automatic router”
  3. E3 GPT-5 failed the hype test The Verge · 15 August 2025

    “The general consensus is that although GPT-5 wasn’t as significant of an advancement as people expected, it offered upgrades in cost and speed, plus fewer hallucinations”
  4. E4 GPT-5 failed the hype test The Verge · 15 August 2025

    “Gary Marcus, a leading AI industry voice and emeritus professor of psychology at New York University, called the model “overdue, overhyped and underwhelming.””
  5. E5 GPT Model Timeline (GPT-1 to GPT-5.x) | AI Wiki AI Wiki (aiwiki.ai) · 7 July 2026

    “GPT-5, released August 7, 2025, was OpenAI's first "unified" model, combining the fast responses of the GPT line with the deliberate reasoning of the o-series behind an automatic router”
  6. E6 GPT Model Timeline (GPT-1 to GPT-5.x) | AI Wiki AI Wiki (aiwiki.ai) · 7 July 2026

    “The full order is GPT-1 (2018), GPT-2 (2019), GPT-3 (2020), GPT-3.5 and ChatGPT (2022), GPT-4 (2023), GPT-4 Turbo (2023), GPT-4o (2024), o1 (2024), GPT-4.5 (early 2025), o3 and o4-mini (2025), GPT-5 (2025)”
  7. E7 OpenAI models list 2026: GPT and o-series release dates The Model Press · 1 November 2026

    “GPT-5, with GPT-5 mini and GPT-5 nano, launched on August 7, 2025.”
  8. E8 Previewing GPT-5 at OpenAI's office Simon Willison's Weblog · 7 August 2025

    “I suspected it might relate to either GPT-5 or the OpenAI open weight models”
  9. E9 State of Venture 2025 - CB Insights Research CB Insights · 5 February 2026

    “After two years of decline, venture funding rebounded to $469B in 2025, up 47% YoY, with last quarter alone seeing $152B — the strongest since Q1’22.”
  10. E10 AI bubble | AI Wiki AI Wiki · 31 May 2026

    “Despite the swings, major indices remained near record highs for much of late 2025, and many AI stocks recovered from individual drops, so the overall picture into early 2026 was one of nervousness and sharp swings rather than a sustained crash.”

Reasoning

The prediction only applies if OpenAI released a truly mindblowing GPT-5 in 2024. Independent timelines list GPT-4o and o1 as OpenAI's 2024 releases and date GPT-5 to August 7, 2025 (E1, E2, E7). The Verge also reported a consensus that GPT-5 was less of an advance than expected (E3). The condition therefore failed, the prediction was never tested, and under the criteria it is unresolvable, regardless of the funding and market evidence (E9, E10).

Cite this claim

Gary Marcus, “If OpenAI releases a truly mindblowing GPT-5 in 2024, the generative AI bubble will not burst soon.” (said 31 March 2024). Verdict: unresolvable. Reliability API, claim c_2925b2b4dbba, method 0.1.0+c876030c, dataset release v1.1.2. https://epistacklabs.com/claims/c_2925b2b4dbba

This claim is in dataset release v1.1.2, with the same verdict.

Reply to this claim

For Gary Marcus, or someone speaking for them: a correction or counter-evidence. Replies are read before anything is shown; an approved reply shows your name, role, date, statement and link. Your email address is never shown and is deleted 30 days after the decision (privacy).

More prediction claims by Gary Marcus

  1. Resolved true Prediction 1 January 2025
    “Profits from AI models will continue to be modest or nonexistent”

    Profits from AI models will remain modest or nonexistent in 2025.

  2. Mostly true Prediction 31 March 2024
    “GPT-5 may be more satisfying but is likely even more expensive to train and operate.”

    GPT-5 is likely to be even more expensive to train and operate than GPT-4.

  3. Mostly true Prediction 27 July 2025
    “Some of its advice will be head-scratchingly bad.”

    Some of GPT-5's advice will be very bad.

  4. Mostly true Prediction 27 July 2025
    “GPT-5 will surely be better, a lot better than GPT-4.”

    GPT-5 will be considerably better than GPT-4.

  5. Resolved true Prediction 27 July 2025
    “GPT-5 really is about to drop, no foolin’.”

    OpenAI will release GPT-5 imminently.

All of them

Verdicts are made automatically; how verdicts are made.