Fired for using ChatGPT: the raters inside OpenAI's human moat

Contractors who let ChatGPT grade ChatGPT are removed on the spot. The vendor fielding more than 30,000 of them is in talks at a $20 billion valuation, and the labels already shipped stay in the training data.

In this storyOpenAIMercor
Vincent JiangVincent Jiang · 2 min read
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Sam Altman, OpenAI's chief executive, speaking on stage at TechCrunch Disrupt San Francisco 2019
OpenAI chief executive Sam Altman. The contractors who grade ChatGPT's answers can be removed on the spot for letting a model do the work.

Fired for the one shortcut on offer

The people paid to keep ChatGPT human have one reliable way to lose the job: let a model do it. Contractors grading ChatGPT responses describe colleagues removed "all the time" for using AI on the work, "pretty much the one thing that will get you kicked off ASAP," on projects that can field more than 10,000 people 12. OpenAI declined to comment 1.

Authenticity, audited by em dash

The internal rules are blunt: "Do not use AI detection tools, or AI yourself." GPTZero is ruled unreliable, and even Grammarly and AI translation are banned for the reviewers whose job is catching AI use in other raters. "Judge the overall pattern, not one clue," one guide instructs. The tells are stylistic: repetitive words, overuse of the em dash, suspiciously fast turnaround. One rater shared a termination letter citing the "authenticity" of their work 12.

The vendor's moat math

Mercor, which supplied two of the contractors interviewed, confirms the enforcement: contracts "strictly prohibit" LLM use, and confirmed use means immediate removal 12. The business underneath is booming, with more than 30,000 contractors, payouts above $1.5 million a day, a matching fee on every hour, and a valuation that has multiplied tenfold since February 2025 3456. The pitch is the very thing being policed: its chief executive sells the work as teaching machines "the judgment, nuance, and taste that only humans possess" 3.

Mercor's valuation has multiplied tenfold since February 2025

  • Valuation
  • Estimate
$0B$5B$10B$15B$20BFeb 2025Oct 2025Jul 2026 (talks)$10Bterm sheet reported, round notclosed
Data
Valuation
Feb 2025$2B
Oct 2025$10B
Jul 2026 (talks) (estimate)$20B
Post-money valuation at each reported round: Series B announced February 2025, Series C October 2025, and a round in talks as of July 2026, not closed. Sources: Benzinga via Yahoo Finance; TechCrunch; The Information via Stocktwits.4,5,6

The labels stay, the rater goes

Nothing in the documents describes re-auditing work already shipped into training; the enforcement described ends at removing people 12. What they graded was real consumer conversation, training-on by default, read for over $50 an hour on work one reviewer called "very rote" 27. A proposed class action served on OpenAI on 2 September argues users were never clearly told a human would read their chats; the company answers in court on 13 October, and the plaintiffs want consent required before any human review 8. A 2024 Nature paper found that indiscriminate training on model-generated text causes irreversible defects; nothing published shows that has happened inside OpenAI's models 9.

Sabotage in the queue

The vendor case is real: prohibition, investment in detection, removal on confirmation 12. It does not reach the fourth contractor, who said they sometimes pick the worst answer on purpose, "paid to make AI worse," with no detection described 1.

The door to watch

Watch 13 October, OpenAI's court deadline, and whether Mercor's talked-about $20 billion round closes 58. Every catch replaces a rater. Nothing in the record replaces their labels.

How this brief was made

01Gathered & sourced344 channels · 1,772 articles▾

Agents swept 344 channels and ingested 1,772 articles, then de-duplicated and ranked them for signal.

02Verified & cross-validated9 claims · 12 data feeds▾
03Reviewed & edited1 human editor▾

One editor read the draft against the evidence, tuned the framing, and signed off before it shipped.

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