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Get paid to teach AI what a good answer looks like.

TrainBrain hires people to judge, correct and write the answers AI models learn from. You read the question, compare what the model said, and mark what is actually right. Remote, your own hours, paid every week.

Rate
From $22 an hour
Payouts
Weekly, via PayPal
Where
Fully remote
Sample task · General 04:58
User prompt

“My flight was cancelled and the airline gave me a voucher. Can I ask for my money back instead?”

Which answer would you keep? Saved — now write one line on why. +$0.85

This is the job, shortened. Real tasks come with instructions, sources and a box for your reasoning.

The work

Four things you will be asked to do

No scripts, no call centre, no quotas to hit. Each task is a piece of writing or judgement that a model cannot make on its own yet.

Compare two answers

Two models answer the same question. You decide which one a real person would rather receive, and say what makes it better.

Write the better version

When both answers miss, you write the one that does not. Clear, correct, and in the tone the instructions ask for.

Check the facts

Follow a claim back to its source, then flag what the model invented, exaggerated or quietly left out.

Label and annotate

Sort and tag data so the next round of training starts from categories that make sense.

Tracks

Start with the subject you already know

Pick one track assessment to begin with. It is built from the kind of task you would be paid for, not a quiz about it. You can take another track later to open up more work.

Finance Projects

Accounting, banking, economics, tax and financial analysis work.

Track 01

Programming Projects

Software engineering, data science and hands-on coding work.

Track 02

Medical Projects

Clinical medicine, life sciences, nursing and pharmacy work.

Track 03

Law Projects

Legal practice, paralegal, law enforcement and policy work.

Track 04

Accounting Projects

Financial reporting, audit, bookkeeping and tax preparation work.

Track 05
Then the General Assessment. Grammar, research and instruction-following, taken after your track. It is the same for everyone and it is where most of the writing work is judged.
How it works

From sign-up to your first paid task

Five steps, in this order. There is no interview and no CV to upload.

01

Create your account

Email and a password. That is the whole sign-up.

02

Choose your track

Finance, Programming, Medical, Law or Accounting — whichever fits your background best.

03

Take the track assessment

Real tasks with real instructions. Your answers save as you go, so you can stop and come back.

04

Take the General Assessment

Grammar, research and instruction-following, for every applicant.

05

Get reviewed, start work

A reviewer reads your answers and we email you either way. Approved trainers can start straight away.

Pay

How the money works

You are paid for the hours you work on tasks, every week, with nothing to invoice and nothing to chase. Work five hours or forty — the rate does not change with the size of your week.

Rates depend on the track and the difficulty of the task. Your exact rate is confirmed before you accept work.

Base rate
$22 / hour
Specialist tracks
Higher, by project
Pay cycle
Weekly
Method
PayPal
Minimum hours
None
Cost to apply
$0
Before you apply

Who this is for

The work suits careful readers and clear writers. If you enjoy catching the detail everyone else skimmed past, you will do well here.

You need

  • To be 18 or older
  • Fluent written English
  • A laptop and steady internet
  • A PayPal account
  • Patience for detail

You do not need

  • Experience with AI
  • A CV or an interview
  • Set working hours
  • To pay anything, ever
  • To find your own clients
Questions

Answered plainly

Still stuck? Write to admin@trainbrain.space and a person will reply.

Do I need experience to apply?

No. If you read carefully and write clearly, the assessment will show it. Anything specific to a project is explained in the instructions when you get there.

How much can I earn?

Rates start at $22 an hour and go up with the track and the type of task. What you take home depends on the hours you choose to work.

When and how do I get paid?

Weekly, to your PayPal account. There is no invoice to raise and no minimum balance to reach first.

Is this employment or contract work?

Contract work. You pick your own hours, there is no minimum commitment, and you are responsible for your own taxes wherever you live.

How long does the application take?

One track assessment plus the General Assessment. Your answers save as you go, so you can stop partway and pick up where you left off.

What happens after I submit?

A reviewer reads your answers and we email you the decision either way. Approved trainers get access to work immediately.

Ready when you are

Your first task is one assessment away.

Create an account, choose a track, and show us how you think. Free to apply, and nothing to install.