Is this job worth applying to?

Pay

Above typicalTops out at $150/hr. The typical top rate across 148 priced STEM listings is $70/hr.

Getting in

Some screening~30–60 min profile + AI interview. Professional experience in your field.

Steady work

Work is patchyLong waits between tasks are common.

Payout record

Pays on timeSchedule: weekly. Paid via Not specified on the AI training page.

Freshness

RecentPosted 9d ago. Still listed on Braintrust on Nov 6, 2026.

Where you live

Named countries onlyOpen in United States, Canada, Argentina and 5 more.

The job description

We're hiring PhD-level experts to help train and evaluate advanced AI models. This is remote, flexible contract work where your academic expertise directly shapes how cutting-edge models reason, answer, and improve. You'll review AI-generated content in your field, identify where the model gets things right or wrong, and help raise the quality bar on technical reasoning.

This is a short-term engagement running through the end of June, with potential to extend depending on project needs.

Key Responsibilities

You may contribute your expertise by:

Assessing the factuality and relevance of domain-specific text produced by AI models
Crafting and answering questions related to Machine Learning and AI
Evaluating and ranking domain-specific responses generated by AI models

What We're Looking For

A PhD (completed or in final stages) in one of the following fields: Machine Learning / AI, Computer Science, Engineering, Statistics, or a closely related quantitative subdomain such as Mathematics or Physics
Strong analytical and critical-thinking skills, with the ability to spot subtle errors in technical reasoning
Fluent written English and the ability to communicate complex ideas clearly

Nice to Have

Research experience (academic or industry)
Prior experience with data annotation or AI model evaluation
Experience reviewing or publishing research papers

Compensation

Up to $150/hr, depending on your area of expertise, depth of experience, and assessment performance.

Location

This role is fully remote. We are currently accepting applicants based in:

United States, Canada, Puerto Rico, Mexico, United Kingdom, Australia, New Zealand, and Argentina.

How do you apply to Braintrust?

Apply on Braintrust

The Apply button opens this post on Braintrust's own site. You apply with them, not with Rubric. Budget about 30–60 min profile + AI interview.

Get through screening

What Braintrust asks for after you apply:

Complete the AI skills interview
Browse and accept AI training tasks in your dashboard

Start work and get paid

Pay schedule: weekly. Paid via Not specified on the AI training page. You're paid for the work they hand out, not a fixed salary.

Braintrust also needs

Professional experience in your field
Complete profile

Red flags

None on record for Braintrust. A real platform never asks you to pay for training, equipment or a "starter kit".

What is Braintrust like to work for?

Freelance talent network that now also runs AI training work, matching professionals to rating, red-teaming and code-review tasks after an AI skills interview.

Advertised pay	$20–200/hr
Getting in	Some screening
Application takes	~30–60 min profile + AI interview
How you get paid	Weekly, via Not specified on the AI training page
Payout record	Pays on time
Countries	Remote and open to freelancers in many countries with pay in USD; India eligibility for AI training tasks is not confirmed.

Braintrust lists $20–45/hr for data labeling, $25–60/hr for RLHF rating and up to $200/hr for expert code review; listings average around $50/hr.