“And, breaking news, costs are rapidly rising too:”
Our reading, the sentence that was checked:
The costs of developing AI data centers, including OpenAI's Stargate, are rising rapidly.
Assessment: Supported Evidence as of
Where and when Gary Marcus wrote it
Marcus on AI, An entire industry is being propped up by math that is insane., paragraph 40.
- Said
- Source observed
- live page, full text, public
- Evidence as of
- the cutoff for this assessment
- Assessment recorded
- assessment marcus-an-entire-industry-is-being-propped-26bf80-a1
We recorded 9 claims from this post. See every claim from this post.
The wording above is the version this site observed on 2026-10-28. The source may have been edited after 2026-06-08. 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
- costs are rapidly rising too
- cost of developing OpenAI's Stargate & other AI data centers
- breaking news (June 8, 2026)
Our interpretation
- Plain reading: around June 2026, the cost of building AI data centers (per unit of capacity, or for set projects) was going up fast.
- Strong rises over a year or a hardware generation, such as double-digit per-gigawatt increases or multi-fold component price rises, count as 'rapid'.
Counts as supported if: Credible estimates from early to mid 2026 show AI data center build costs rising sharply, per gigawatt or through key parts such as memory.
Counts as contradicted if: Credible estimates from the period show AI data center build costs flat or falling.
Retrospective: these criteria were written after the outcome was public.
Current assessment
Was it true for the period described?
Outcome: Supported
The dated evidence matches what the claim committed to, under the criteria frozen before grading.
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
Marcus said the cost of building AI data centers was rising fast. A Bernstein report from June 8, 2026, the day of the post, estimated that a gigawatt of AI data center capacity on Nvidia's newest chips cost 17% more than on the previous generation. Bernstein said the main reason was memory and storage, and it noted storage prices had risen about 115% a year through May 2026. A rise of that size counts as rapid on an ordinary reading. Other industry data shows AI-driven increases in construction costs. The Stargate-specific report he cited could not be read, so the support rests on industry-wide figures.
Limitations
- The Stargate-specific costs Marcus pointed to were not directly checked.
- The Bernstein figures come through a translated summary, and one dollar figure in it looks mistyped.
Evidence (4 items)
Supports the claim: Bitget News (translating Wallstreetcn, citing Bernstein Research),
the total AI data center capex comes to about $4.73 billion per gigawatt—a 17% increase compared to the roughly $4.05 billion in the previous Blackwell cycle.
Why it matters here: Bernstein's June 8, 2026 estimate puts the cost of a gigawatt of AI data center capacity 17% above the previous chip generation. That is a sharp rise in build cost at the time of the post. The translated dollar figure appears to be off by a factor of ten, but the percentage rise is stated directly.
- Publisher
- Bitget News (translating Wallstreetcn, citing Bernstein Research)
- Kind of source
- Secondary summary
- Describes events of
- Public from
Supports the claim: Bitget News (translating Wallstreetcn, citing Bernstein Research),
NAND prices have risen 11.3 times from April 2023 lows to May 2026, an annualized rate of 115%
Why it matters here: Storage, a major part of rack cost, rose in price at about 115% a year through May 2026. Bernstein says memory and storage are the main reason rack costs exceeded earlier estimates.
- Publisher
- Bitget News (translating Wallstreetcn, citing Bernstein Research)
- Kind of source
- Secondary summary
- Describes events of
- Public from
Context only: The Edge Malaysia (Cushman & Wakefield data),
The Malaysian market recorded a 9.3% year-on-year increase in construction costs as artificial intelligence (AI) accelerates and reshapes how facilities are designed, powered, and built.
Why it matters here: Shows AI-driven construction cost inflation in another region during the period. It covers building costs only, not chips.
- Where
- paragraph 2
- Publisher
- The Edge Malaysia (Cushman & Wakefield data)
- Kind of source
- News report
- Describes events of
- Public from
Context only: The Boston Globe,
Average server prices more than doubled between late 2023 and late 2025, according to Bloomberg Intelligence, and prices for the memory used in data centers have risen more than fivefold in a year.
Why it matters here: Shows the broader trend of fast-rising equipment costs. The dates only partly overlap the claim period, so it is context only.
- Publisher
- The Boston Globe
- Kind of source
- News report
- Describes events of
- Public from
Where it was said (1)
Said once in the sources this register covers.
: Marcus on AI, An entire industry is being propped up by math that is insane.
And, breaking news, costs are rapidly rising too:
- Where
- paragraph 40
- Published
- 2026-06-08
- Source observed
- , live page
- Access
- full text, public
History
Assessment versions
- Assessment marcus-an-entire-industry-is-being-propped-26bf80-a1: Current. Outcome: Supported. 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.
About assessment marcus-an-entire-industry-is-being-propped-26bf80-a1.