For teams buying AI training data

OpenTrain AI pricing

OpenTrain AI publishes its fees: a 10% marketplace fee plus US$9.95 when a new contract starts, or, for its managed service, the expert's rate plus a flat 20% management fee, with no contracts or minimums.

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Read against OpenTrain AI’s own pages and the press on 2 Nov 2026. Every figure below links its source.

The figures

What OpenTrain AI charges, keeps and pays

Each figure as its source published it, with whose money it is: what a buyer pays, what the vendor keeps, or what the person doing the work receives.

Figure as published	Whose money	Basis	Source
Managed service: the expert's rate plus a flat 20% management fee, so a $30 an hour expert costs the client $36 an hour; no contracts, no minimumsmanaged domain-expert teams for AI training	Buyer's price and worker's pay	Stated by the company	OpenTrain AI, 25 Oct 2026
10% marketplace fee plus $9.95 when a new contract startsAI trainer and data labeler marketplace	Kept by the vendor	Stated by the company	OpenTrain AI, 11 Oct 2026

From our dataset of published figures on what AI companies pay for human data: every vendor’s figures in one report.

About OpenTrain AI

What OpenTrain AI sells

A marketplace where companies hire AI trainers and data labelers directly, and a managed service that staffs teams of domain experts.

Hire AI Trainers & Data Labelers (OpenTrain AI, 11 Oct 2026)
AI Training Managed Service (OpenTrain AI, 25 Oct 2026)

What an expert hour costs

Start from what the expert is paid

Every vendor's price for an expert hour is the expert's pay plus the vendor's share. We read the pay of every open AI-training role on the major platforms every hour, so here is what each kind of US expert is paid for AI work today.

Expert	Typical rate	Range	Measured from
Physicians	$125/hr	$100 to $270	66 rates, 13 platforms
Lawyers	$110/hr	$75 to $400	96 rates, 20 platforms
Psychologists	$85/hr	$35 to $95	9 rates, 5 platforms
Accountants	$80/hr	$60 to $125	42 rates, 16 platforms
Actuaries and insurance experts	$80/hr	$50 to $125	18 rates, 8 platforms
Finance professionals	$80/hr	$60 to $150	166 rates, 21 platforms
Cybersecurity experts	$80/hr	$60 to $125	31 rates, 7 platforms
Biologists	$80/hr	$40 to $125	39 rates, 11 platforms
Environmental scientists	$80/hr	$45 to $100	16 rates, 7 platforms
Mechanical engineers	$80/hr	$55 to $135	37 rates, 15 platforms
Electrical engineers	$80/hr	$65 to $145	23 rates, 14 platforms
Chemical engineers and materials scientists	$80/hr	$40 to $135	18 rates, 10 platforms
Economists	$75/hr	$50 to $120	16 rates, 6 platforms
Software engineers	$75/hr	$40 to $150	206 rates, 21 platforms
Mathematicians	$75/hr	$40 to $200	46 rates, 15 platforms
Chemists	$70/hr	$40 to $125	36 rates, 13 platforms
Pharmacists, dentists and other clinicians	$65/hr	$40 to $135	68 rates, 19 platforms
Paralegals, law students and notaries	$65/hr	$60 to $150	11 rates, 5 platforms
Physicists	$65/hr	$45 to $200	30 rates, 16 platforms
Nurses	$60/hr	$50 to $125	12 rates, 8 platforms
Nuclear and CBRN experts	$60/hr	$40 to $130	19 rates, 8 platforms
Civil engineers and architects	$55/hr	$45 to $120	16 rates, 11 platforms
Writers and editors	$55/hr	$35 to $120	18 rates, 8 platforms
Teachers	$50/hr	$45 to $75	29 rates, 10 platforms
Translators and linguists	$30/hr	$20 to $75	19 rates, 6 platforms

Typical rate: the middle of what the open roles naming that profession pay, for roles open to US experts; the range runs from the 25th percentile of those roles to the 90th-percentile advertised ceiling. Read live.

What other vendors keep

Scale AI: Monetizes per task, marking up the cost of labor, for 50%+ gross margin (analyst estimate, Sacra, 11 Oct 2026).
Handshake: AI data business gross margins around 30%, versus about 80% for the job board (analyst estimate, Sacra, 11 Oct 2026).
Mercor: Percentage-based recruiting fee, typically 30%, for direct talent placements (analyst estimate, Sacra, 11 Oct 2026).
Mercor, Handshake, micro1: Roughly 60% to 70% of top-line income paid out to domain specialists (reported by a third party, TechCrunch, 22 Sep 2026).
Mercor: Third-party analysts estimate Mercor's take at roughly 30% to 35% of billed hours, with contractors receiving 60% to 70% of gross billings (analyst estimate, HeroHunt.ai, 6 Sep 2026).
Handshake AI: Pays about $60 million a month to more than 30,000 individuals, on a run rate of about $1 billion (stated by the company, Handshake (job board), 5 Sep 2026).
micro1: Gross margins on off-the-shelf data as high as 80% to 90% (reported by a third party, TechCrunch, 20 Aug 2026).
micro1: Net annual run rate $150M to $200M on a $500M gross run rate (about 30% to 40% retained) (reported by a third party, TechCrunch, 20 Aug 2026).

Alternatives

Alternatives to OpenTrain AI

Expert data from US professionals, run end to end

Evaluations, rubrics, fine-tuning data and red-teaming by US doctors, nurses, lawyers, finance professionals, scientists and engineers from our own network. An expert hour is priced at what that kind of expert is paid today (the table above) plus our fee for running the project, and the quote shows both.

How our expert data projects work

Appen pricingAppen publishes no price list: there is no pricing page on its site, and each project is quoted. Its reports describe revenue from projects with AI model builders and from prebuilt datasets, without unit prices.Shaip pricingShaip publishes no price: its pricing page shows no figure, rate card or minimum, and asks buyers to talk to its team for a quote tailored to the project.Toloka pricingToloka publishes no rate card. On its self-service platform the buyer prepays an account balance and sets the hourly rate it will pay within Toloka's suggested range; fees are shown in the account at checkout, exclude VAT, and purchases are non-refundable. Enterprise projects are quoted.TELUS Digital pricingTELUS Digital publishes no price or pricing model: its AI training data page offers projects by quote.Scale AI pricingScale AI publishes no price: its pricing page is a form to book an introductory call. The press reports that most of its revenue comes from charging model makers for access to its network of specialised human trainers.Prolific pricingProlific publishes its prices: buyers pay participants plus a platform fee, usually 42.8% for companies and 33.3% for academic and non-profit customers, with no contract or subscription. Participants must be paid at least US$8 an hour. Managed projects are quoted.

All 25 data vendors and how each prices

Looking for paid work at OpenTrain AI rather than buying data? OpenTrain AI: open roles, pay and whether it is legit.

Questions

What teams ask about OpenTrain AI

How much does OpenTrain AI charge?

What have buyers paid OpenTrain AI?

Managed service: the expert's rate plus a flat 20% management fee, so a $30 an hour expert costs the client $36 an hour; no contracts, no minimums (stated by the company, OpenTrain AI, 25 Oct 2026).

How much of the price does OpenTrain AI keep?

10% marketplace fee plus $9.95 when a new contract starts (stated by the company, OpenTrain AI, 11 Oct 2026).

What does OpenTrain AI sell?

A marketplace where companies hire AI trainers and data labelers directly, and a managed service that staffs teams of domain experts.