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Is Mercor Legit? Reviews, Pay and Company Data Deals

Is Mercor legit? Yes: a $10 billion AI data company. How it pays contractors and companies selling records, the 2026 data breach and what to check first.

Valuation
$10 billion$350M Series C, Oct 2025
Expert network
5M+Mercor's figure
Contractor pay
WeeklyStripe or Wise
Company payment
Wire on deliveryTypically 2 to 4 weeks after signing
A magnifying glass over a contract checklist
Short answer

Yes, Mercor is a legitimate AI training-data company: it raised $350 million at a $10 billion valuation in October 2025 and works with labs including OpenAI. Contractors are paid weekly; companies selling records are paid by wire after delivery. The caveats: a reported pay cut on one project, projects that end early and a 2026 data breach.

  • Mercor is a real, well-funded company: a $350 million Series C in October 2025 valued it at $10 billion.
  • Contractors are independent contractors paid weekly through Stripe or Wise; projects can end early.
  • Companies that license records are paid by wire on delivery, typically 2 to 4 weeks after signing, with no fees deducted, by Mercor's account.
  • The main complaints on record are a November 2025 pay cut on a replacement project and short-notice project endings. Mercor was also affected by a March 2026 data breach tied to the LiteLLM project.

Is Mercor legit? The short answer

Yes. Mercor is a funded company with named investors and named customers, and it pays both the experts who work on its projects and the companies that license records to it. Searches for "is Mercor legit" usually come from one of two people: a professional deciding whether to take contract work, or an owner deciding whether to sell company data. This page covers both, in separate sections.

Being legitimate does not mean every experience is good. The complaints on record are specific: a cut in hourly pay on one replacement project and short-notice project endings. Each is set out below with its source and Mercor's response, along with what Mercor says about a 2026 data breach.

What Mercor is: funding and customers

Mercor connects AI labs with domain experts who train and test AI models. TechCrunch describes it as charging clients "an hourly finder's fee and matching rate" for that work (TechCrunch). In October 2025 it announced a $350 million Series C led by Felicis with Benchmark, General Catalyst and Robinhood Ventures, which "values Mercor at $10 billion" (Mercor).

Its customers have included OpenAI (The Record) and Meta (Business Insider). At the time of the Series C it said it paid contractors more than $1.5 million a day and had more than 30,000 experts on its roster earning over $85 an hour on average (TechCrunch). Its homepage now lists a network of "5M+ experts" (Mercor).

Mercor also buys company records directly. In the August 2026 auction of Spirit Airlines' internal data it was the next-highest bidder at $7.5 million, behind Google (Axios).

Source: Mercor: Series C announcement (Oct 2025)

Mercor for contractors: how and when it pays

Experts work as independent contractors. A typical listing reads: "You will be engaged as an independent contractor," and "Payments are weekly on Stripe or Wise based on services rendered" (Mercor listing). Rates are posted on each listing; that example paid $50 to $60 an hour.

Applying usually means a resume, a short conversation with Mercor's AI interviewer and, on some listings, a paid assessment. The same listing warns that "Projects can be extended, shortened, or concluded early depending on needs and performance", so treat any project as temporary work rather than steady employment.

Source: Mercor: example contract listing (computer power users)

Mercor for companies selling records: how the data program pays

Mercor's data program licenses the workflow data a business already produces: "We license it, package it, and pay you for it." A company connects tools such as Slack, Gmail, Salesforce or GitHub from "100+ supported tools", and Mercor says "No data leaves your systems until you approve it."

On price, Mercor says "Compensation is based on data volume, the tools you connect, and the depth of your data," and that it "covers all costs associated with data extraction, anonymization, and transfer", so nothing is deducted. On timing: "Payment is issued via wire transfer upon delivery of the anonymized dataset to the buyer," which "typically occurs within 2-4 weeks of the signed agreement".

On privacy, Mercor says its anonymization "masks 60+ categories of sensitive identifiers" (Mercor), that "No AI lab buyer or third-party vendor ever sees your raw data", and it lists SOC 2 Type II. Step-by-step terms are in our Mercor data monetization program guide.

Source: Mercor: monetize your data

Reported complaints

Pay on a replacement project. In November 2025 Mercor ended a large Meta project, codenamed Musen, on which more than 5,000 people had worked at its peak, and offered a similar project "which would pay $16 an hour - $5 less than the hourly rate for Musen" (Business Insider). A Mercor spokesperson called the report "inaccurate" without saying which details it disputed, and said the company is clear "that this is temporary, project-based work".

The 2026 data breach. Mercor was "one of thousands of firms" affected by the compromise of the open-source LiteLLM project (The Record); Mercor dates the attack to late March 2026, says "only a very limited subset" of its nearly five million experts had sensitive information affected and offered affected people TransUnion identity protection (Mercor).

Source: Business Insider: Mercor ends a Meta project, offers a similar one for less (Nov 2025)

What to check before you sign with Mercor

Contractors and companies should check different things.

  • Contractors: read the rate, the expected hours and the end-of-project terms in the contract, not only the listing.
  • Contractors: ask what personal data, recordings or screen activity a project collects, and how long it is kept.
  • Companies: get the price, the payment trigger and the payment date written into the agreement.
  • Companies: ask which identifiers are removed, who reviews the output and whether you see a sample before delivery.
  • Companies: confirm whether the license is exclusive and how long it lasts. See exclusive vs non-exclusive data licenses.
  • Compare offers before choosing. Mercor competitors sets out the other programs that buy company data.

Next step

If you are weighing a Mercor offer for company records, compare it with what similar records have fetched elsewhere before you sign.

Origin Data Partners works with companies that own data and helps get it bought. We are independent of the services on this page, and a buyer may pay us when a deal closes (how Origin is paid). See what your data is worth.

Common questions

Is Mercor legit or a scam?

Mercor is legitimate, not a scam: it is a venture-backed AI data company valued at $10 billion in October 2025, with named customers such as OpenAI. It pays contractors weekly and pays companies by wire after delivery. The complaints on record concern pay on one replacement project and projects that end early.

How does Mercor pay contractors?

Mercor pays its experts weekly through Stripe or Wise, based on services rendered, as independent contractors. The hourly rate is shown on each listing, and a project can be extended, shortened or ended early.

How much does Mercor pay per hour?

It depends on the role. In October 2025 Mercor said its experts earned over $85 an hour on average; individual listings range widely, such as $50 to $60 an hour for one computer-use project, and Business Insider reported a $16-an-hour rate on a replacement project in November 2025.

How does Mercor pay companies for their data?

By wire transfer when the anonymized dataset is delivered to the buyer, typically within 2 to 4 weeks of the signed agreement, according to Mercor. It says compensation depends on data volume, the tools connected and the depth of the data, and that it covers extraction, anonymization and transfer costs.

Was Mercor hacked?

Yes. Mercor was affected by a late-March 2026 supply chain attack involving the open-source LiteLLM project, one of thousands of firms affected. Its June 2026 update says only a limited subset of experts had sensitive information affected and offered them identity protection.

What is the difference between working for Mercor and selling data to Mercor?

Working for Mercor means doing paid contract work, such as evaluating AI outputs, as an individual. Selling data means a company licenses records it already holds, such as Slack, email or CRM data, through Mercor's data program and is paid for the dataset.

Sources and further reading

Origin Data Partners is independent and not affiliated with any buyer named on this page.

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