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OpenTrainPhD

Statistical Modeling Researcher

As a Statistical Modeling Researcher, you will help improve AI systems by creating expert training data and reviewing AI-generated research content. Your work will focus on statistical theory, methodology, computation, machine learning, and applied statistics.

Field
Math & statistics
Where
United States
Commitment
part time
Hours
up to 20/week
Asks for
PhD
Posted
6 days ago

Pay data for your profession: Math AI trainer jobs · PhD AI trainer jobs

How this pay compares

At $75/hr, this role pays more than 44% of the 54 open math & statistics roles with a listed pay range, below the median of $83.

Open math & statistics roles that ask for a PhD have a median of $83/hr (17 roles).

Among platforms with 10 or more priced math & statistics roles, Alignerr has the highest median ($185/hr across 23 roles) and OpenTrain AI the lowest ($49/hr across 26).

OpenTrain AI roles that closed since late October stayed listed a median of 31 days (122 roles). OpenTrain AI posted this one 6 days ago.

Computed from 2,746 open roles we track across Mercor, micro1, Handshake AI, Alignerr, Appen and OpenTrain AI, refreshed daily. Midpoints of listed ranges; “up to” ceilings are left out of medians.

What you would earn at this rate

Rate

$75/hr

Per week, before tax

$1,500

Per month, if the work is steady

$6,500

Tax
Contract pay arrives with no tax withheld. A US contractor at this rate and these hours would set aside about $1,643 a month for self-employment tax plus federal income tax at the 12% bracket (25%, before state tax). Outside the US, your own country's rules apply.

Assumes paid hours only; unpaid assessments, onboarding and gaps between projects lower the real figure. Full take-home calculator · Track what you actually earn

Open math & statistics roles on each platform

The same kind of work, priced on every platform we track, with the best-paid open role on each.

PlatformOpenMedianBest-paid open role
Alignerr23$185/hrApplied Formal Methods Researcher (Lean 4)$170-200/hr
Mercor4$88/hr4 pricedMathematics Domain Expert$90-140/hr
OpenTrain AIthis role26$49/hrResearch Scientist: Formal Methods, Computational Science$135/hr
Handshake AI6up to $75/hrMath ExpertUp to $75/hr

“Up to” rows list only ceilings, so their median is a maximum, not comparable with the range midpoints above them.

All 60 open math & statistics roles →

The full listing

As posted on OpenTrain AI. See the original

The work

As a Statistical Modeling Researcher, you will help improve AI systems by creating expert training data and reviewing AI-generated research content. Your work will focus on statistical theory, methodology, computation, machine learning, and applied statistics.

You will work independently in an asynchronous setting, using your research judgment to assess technical content and explain your decisions clearly.

  • Create training data grounded in statistical research and methodology.
  • Review AI-generated responses for accuracy, relevance, and alignment with statistical concepts.
  • Evaluate content across statistical theory, methodology, computation, machine learning, and applied statistics.
  • Write clear feedback that helps improve AI-generated research content.
  • Work carefully and independently with AI research teams.

What it pays and takes

This is ongoing, project-based contract work for researchers with advanced statistical expertise. Prior AI training experience is not required.

  • Pay: Up to $75 per hour.
  • Location: Open to candidates in the United States.
  • Schedule: 20+ hours per week.
  • Work arrangement: Remote, flexible, asynchronous, part-time contract work.
  • Education: PhD in Statistics, Biostatistics, Applied Statistics, or a related field from a top 100 US university.
  • Research background: Experience in statistical theory or methodology, statistical computation or machine learning, or applied statistics and applications.
  • Communication: Strong written communication and the ability to explain technical judgments clearly.
  • Language: Professional fluency in English.
  • Useful background: Familiarity with arXiv, especially its Statistics repository.

How it works

OpenTrain is where people find AI training work and start applications. Apply on OpenTrain with your resume, then complete the application on the hiring site.

About AI training work

AI training is the human work behind artificial intelligence, including creating examples and reviewing model responses. People with specialized knowledge are needed to judge whether AI-generated content is accurate, useful, and well reasoned. OpenTrain helps people find these projects, build a profile, and apply in minutes.

From applying to your first payment on OpenTrain AI

  1. 1

    Create a profile

    Create a free OpenTrain profile with your domains, languages and hourly rate.

  2. 2

    Apply

    Apply to the listing. Some listings hire through OpenTrain; others send you to the hiring platform.

  3. 3

    Funded milestones

    The client funds each milestone before work starts.

  4. 4

    First payment

    OpenTrain pays out to your connected payout method when the client approves the milestone. It doesn't publish a fixed payout schedule.

Sources: OpenTrain: AI training careers, OpenTrain docs: invoicing and payouts

Full OpenTrain AI profile: watch-outs and the public record →

Pay history

OpenTrain AI has listed this role at $75/hr since Nov 6, 2026 with no change.

Across OpenTrain AI's math & statistics roles, the median listed pay was $25/hr on Nov 1, 2026 (18 roles) and is $49/hr as of Nov 11, 2026 (26 roles).

What workers report about OpenTrain AI

Anonymous reports from people who applied or worked there: whether they got work, what they were paid and how fast.

Other math & statistics roles

All 60 math & statistics roles →