Pundit ClaimsAI claims by Gary Marcus and Ed Zitron, with the evidence

“As discussed last week, around 80% of OpenAI and Anthropic’s revenues come from venture backed startups that (as I’ll get to at the end) heavily subsidize their userbases, which means that growth is mostly tied to whether VC can continue funding its customers.”

Running Dry, paragraph 92.

Our reading:

Around 80% of OpenAI's and Anthropic's revenues come from venture-backed startups that heavily subsidize their userbases, so their growth is mostly tied to whether VC can keep funding those customers.

Assessment: Unresolved

What happened

Does the evidence support the cause?

Outcome: Unresolved

We checked, and the evidence so far doesn’t settle it.

Judged on a plain reading. They named no measure, so we used the reading a typical informed reader would take. It is spelled out under “How we judged it”.

Evidence up to . Checked .

Why

Ramp's October 14, 2026 report says the top 1% of firms account for 80% of sampled spending on OpenAI and Anthropic; it does not measure venture-backed startups' share of either company's total revenue [e4]. In a November 6 interview, Ramp's economist described AI spending as heavily concentrated among venture-backed technology companies [e5]. Neither item establishes the claimed revenue share for July–September 2026, measures customer subsidies, or shows that venture financing predominantly determines revenue growth, leaving the claim unresolved [e4, e5].

Caveats

  • The evidence does not reconcile sampled spending to either company's total revenue or their combined revenue [e4, e5].
  • The November interview supplies qualitative context after the target quarter, without customer subsidy measurements [e5].
  • The evidence does not separate venture-funding effects from price and efficiency effects discussed by Ramp [e4, e5].

Evidence (2 items)

  • Context only: Ramp,

    80% of spend

    Why it matters: The report describes concentration among businesses in Ramp's spending data. It does not identify all top spenders as venture-backed startups or reconcile their spending to either lab's total revenue.

    Publisher
    Ramp
    Kind of source
    Independent measurement
    Measures
    OpenAI and Anthropic, Share of sampled business spending attributable to the top 1% of firms percent of sampled spending, estimate, ? to 2026-09-30
    About events on
    Published
  • Context only: TechCrunch,

    venture-backed, high-growth tech companies

    Why it matters: The interview gives qualitative backing to venture-funding exposure. It supplies neither a revenue reconciliation for the target quarter nor measurements of customers' subsidies and causal dependence.

    Publisher
    TechCrunch
    Kind of source
    News report
    About events on
    Published

How we judged it

Kind of claim
Causal claim
Deadline
None given. We don’t add one.

Conditions

  • around 80% (their words)
  • mostly (their words)

Where we had to interpret

  • Revenues means each company's total realized revenue, including consumer and business revenue.
  • The wording could instead refer to their combined revenue; both readings should be checked where data permits.
  • Use the latest completed calendar quarter before publication, July through September 2026, for the ongoing revenue claim.
  • Mostly means venture funding is the predominant driver of revenue growth, not merely one source of exposure.
  • Heavy subsidy means customers materially fund service delivery from outside capital rather than receipts from their own users.

Right if: Representative revenue records show that approximately 80% of total revenue comes from venture-backed startups with materially subsidized users, and funding-linked spending evidence shows continued venture financing predominantly determines growth.

Wrong if: Comparable revenue records place that share materially away from 80%, or representative customer economics and spending evidence show that user subsidies or venture funding are not the predominant source of the claimed growth dependence.

We wrote this test after the outcome was known.

What would settle it

Revenue-reconciled customer classifications for both companies for July–September 2026, customer accounts measuring user subsidies, and evidence testing whether venture-funding changes predominantly drive revenue growth relative to price, usage, efficiency and customer mix.

We found 42 claims in this post. See them all.

Full record

Source and dates

Where's Your Ed At, Running Dry, paragraph 92.

Said
We read the source
live page, full text, public
Evidence up to
Checked

We read this wording on 2026-11-09. The post may have been edited after 2026-11-03.

Where it was said (1)

Said once in the posts we read.

  • : Where's Your Ed At, Running Dry

    As discussed last week, around 80% of OpenAI and Anthropic’s revenues come from venture backed startups that (as I’ll get to at the end) heavily subsidize their userbases, which means that growth is mostly tied to whether VC can continue funding its customers.

    Published
    2026-11-03
    We read it
    , live page
    Access
    full text, public

History

Versions

  • Current: Unresolved. Evidence up to 2026-11-09.

What happened to this record

  1. PublishedBy us

    Published after both AI reviews and the final check passed.