# AI training platforms compared

Alignerr, DataAnnotation, Mercor, micro1 and Outlier each pay experts to train AI, and each publishes different details. Level compares them on the same seven criteria, using only what each platform says on its own pages, read on October 20, 2026. As of October 20, 2026, Level lists 403 live listings from the 2 platforms it tracks.

## What does each platform publish?

### Alignerr

- Work type: Remote roles listed on the site include Content Reviewer, Image Description Specialist, AI Training Specialist, AI Data Quality Analyst and language roles. Tasks are described as labeling, evaluating and improving AI outputs.
  - Source (read 2026-10-20): https://www.alignerr.com
- Pay model: Not published
- Advertised hourly range: Role listings show $40 to $120 per hour for the generalist roles, $25 to $30 for Italian language, and $20 to $40 for Japanese localization. The process page says up to $150 per hour for Finance and Accounting and for Computer Vision and ML experts, and up to $120 for Legal and Compliance.
  - Source (read 2026-10-20): https://www.alignerr.com, https://www.alignerr.com/en/process
- Entry process: Five steps: sign up, apply for a job, identity verification, billing signup, onboarding. Some jobs add a Zara interview or domain assessments.
  - Source (read 2026-10-20): https://www.alignerr.com/en/process
- Accepted countries: Not published
- Payment method: Stripe Connect or PayPal, depending on your location.
  - Source (read 2026-10-20): https://www.alignerr.com/en/process
- Payment schedule: Not published
- Live listings on Level: As of October 20, 2026, Alignerr is not tracked by Level: Level has no feed from its job board and found no live posting naming it as employer.
- Official page: https://www.alignerr.com
- Details: https://jobsbylevel.com/ai-training-platforms/alignerr

### DataAnnotation

- Work type: Reviewing and ranking AI responses, fact-checking, labeling and prompt refinement, in tracks such as general, multilingual, coding, STEM and professional.
  - Source (read 2026-10-20): https://dataannotation.tech/faqs, https://dataannotation.tech
- Pay model: Hourly rates by qualification track. The FAQ words them as starting rates and says work can be done as little or as much as you want each week.
  - Source (read 2026-10-20): https://dataannotation.tech/faqs
- Advertised hourly range: Starting at $25 to $50 per hour (general), $25 to $40 (multilingual), $40 to $150+ (coding), $40 to $125+ (STEM), $40 to $125+ (professional).
  - Source (read 2026-10-20): https://dataannotation.tech/faqs
- Entry process: Choose a qualification track, take the Starter Assessment (one attempt only, no retakes), wait for an email decision, then complete identity verification through Persona.
  - Source (read 2026-10-20): https://dataannotation.tech/faqs
- Accepted countries: Not published
- Payment method: Payments are sent through PayPal.
  - Source (read 2026-10-20): https://dataannotation.tech/faqs
- Payment schedule: Deposits are delivered within a few days after you request them.
  - Source (read 2026-10-20): https://dataannotation.tech/faqs
- Live listings on Level: As of October 20, 2026, DataAnnotation is not tracked by Level: Level has no feed from its job board and found no live posting naming it as employer.
- Official page: https://dataannotation.tech
- Details: https://jobsbylevel.com/ai-training-platforms/dataannotation

### Mercor

- Work type: Contract work for experts such as physicians, lawyers, engineers and consultants, to help solve AI challenges.
  - Source (read 2026-10-20): https://mercor.com
- Pay model: Hourly contracts are the most common format. Deliverable-based contracts pay per completed work item instead of by the hour. The rate is shown in each offer.
  - Source (read 2026-10-20): https://talent.docs.mercor.com/policies/contracts.md
- Advertised hourly range: Sample listings on the homepage show $60 to $70 per hour (Sales and Marketing Expert) and $350 to $450 per hour (Oncologist). The homepage also labels $107 per hour as the average contracted rate.
  - Source (read 2026-10-20): https://mercor.com
- Entry process: An AI interview of about 20 minutes is the standard and only screening method. Up to three retakes are allowed across applications.
  - Source (read 2026-10-20): https://talent.docs.mercor.com/support/ai-interview.md
- Accepted countries: Mercor publishes a list of countries where it can pay experts (107 on the page read) and a list where it cannot onboard experts or issue contracts.
  - Source (read 2026-10-20): https://talent.docs.mercor.com/policies/supported-countries.md
- Payment method: Stripe Connect in most supported countries, Wise in Brazil, Nepal, Turkey and the United Arab Emirates. Contracts are in US dollars.
  - Source (read 2026-10-20): https://talent.docs.mercor.com/how-to/payments.md, https://talent.docs.mercor.com/policies/supported-countries.md
- Payment schedule: Hourly contractors are paid every Wednesday around 12:00 PM Pacific time.
  - Source (read 2026-10-20): https://talent.docs.mercor.com/how-to/payments.md
- Live listings on Level: As of October 20, 2026, Level lists 111 live listings for Mercor.
- Official page: https://mercor.com
- Details: https://jobsbylevel.com/ai-training-platforms/mercor

### micro1

- Work type: Remote opportunities across many domains, including engineering, finance, healthcare and legal.
  - Source (read 2026-10-20): https://www.micro1.ai/experts
- Pay model: Not published
- Advertised hourly range: Not published
- Entry process: Four steps: apply for opportunities, take the AI interview, get onboarded, start earning. Skills certification does not guarantee immediate placement.
  - Source (read 2026-10-20): https://www.micro1.ai/experts
- Accepted countries: Hires worldwide, except residents of 21 listed countries and regions: Afghanistan, Belarus, China, Cuba, Democratic Republic of the Congo, Ethiopia, Hong Kong, Iran, Iraq, Libya, Macao, Myanmar, North Korea, Russian Federation, Somalia, South Sudan, Sudan, Syria, Ukraine, Venezuela and Yemen.
  - Source (read 2026-10-20): https://www.micro1.ai/experts
- Payment method: Not published
- Payment schedule: Not published
- Live listings on Level: As of October 20, 2026, Level lists 292 live listings for micro1.
- Official page: https://www.micro1.ai/experts
- Details: https://jobsbylevel.com/ai-training-platforms/micro1

### Outlier

- Work type: Writing prompts, creating grading rubrics, and rating and ranking AI answers for leading AI companies.
  - Source (read 2026-10-20): https://outlier.ai/faq, https://outlier.ai
- Pay model: Rates vary by expertise, project complexity and location. The tasking rate is shown before you start a project. The homepage mentions quality-based rewards.
  - Source (read 2026-10-20): https://outlier.ai/faq, https://outlier.ai
- Advertised hourly range: Not published
- Entry process: Three stages: platform onboarding and verification, project qualification with assessment tasks, then tasking. Onboarding typically takes 30 to 90 minutes. At least an associate degree is required.
  - Source (read 2026-10-20): https://outlier.ai/faq
- Accepted countries: Not published
- Payment method: PayPal, Airtm or ACH bank transfer.
  - Source (read 2026-10-20): https://outlier.ai/faq
- Payment schedule: Payments are processed weekly, on Tuesdays.
  - Source (read 2026-10-20): https://outlier.ai/faq
- Live listings on Level: As of October 20, 2026, Outlier is not tracked by Level: Level has no feed from its job board and found no live posting naming it as employer.
- Official page: https://outlier.ai
- Details: https://jobsbylevel.com/ai-training-platforms/outlier

## Are these platforms legit?

Each platform page lists what can be checked. Longer guides: https://jobsbylevel.com/blog/is-data-annotation-legit and https://jobsbylevel.com/blog/is-outlier-ai-legit. More roles: https://jobsbylevel.com/ai-trainer-jobs.

### Are these AI training platforms legit?

Each platform has its own page with the checkable facts: [Alignerr](/ai-training-platforms/alignerr), [DataAnnotation](/ai-training-platforms/dataannotation), [Mercor](/ai-training-platforms/mercor), [micro1](/ai-training-platforms/micro1), [Outlier](/ai-training-platforms/outlier). Level also has longer guides on [DataAnnotation](/blog/is-data-annotation-legit) and [Outlier](/blog/is-outlier-ai-legit). Level does not rate platforms and does not guarantee any outcome.

### How do AI training platforms compare on pay?

Each platform advertises pay on a different basis, such as a range per track, a rate per listing or a rate shown per project. The table shows exactly what each one publishes and marks the rest Not published. These are advertised rates, not what any person will earn.

### How does Level order the platforms?

Alphabetically by default. You can switch to the highest advertised hourly figure or to the most listings on Level. No sort uses referral status, and there is no overall score.

### Does Level earn money from these platforms?

Level may earn a referral fee when you apply through some links. It does not change the order of jobs.

### Where can I find more AI trainer jobs?

See the [AI trainer jobs hub](/ai-trainer-jobs) for roles listed on Level.

## How were these platforms compared?

Every platform is described on the same seven criteria, using only its own official pages, read on October 20, 2026. Each fact carries its source URL and read date. A fact the platform does not publish is marked Not published. Platforms are ordered alphabetically, there is no overall score, and referral status never changes the order.

Level may earn a referral fee when you apply through some links. It does not change the order of jobs.

Source: https://jobsbylevel.com/ai-training-platforms

## Cite this page

Level. https://jobsbylevel.com/ai-training-platforms. Measured October 2026.

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