Last Updated: June 2026 | Reading Time: 18 minutes | Category: AI Side Hustles, Make Money Online
If you’ve been Googling ways to make money online using your skills, three names keep showing up: Mercor, OneForma, and Outlier. All three pay real people to work on AI-related tasks. All three are legitimate. But they are built very differently — and choosing the wrong one for your background can cost you weeks of wasted effort.
Read Also: How to Get High Paying AI Remote Jobs on Mercor: A Step-by-Step Guide (2026)
This guide breaks down each platform in detail, compares them across every metric that matters (pay, accessibility, task types, payment schedule, and who each platform is actually best for), and gives you a clear answer based on your profile.
Quick Answer: Which Platform Is Best?
| Your Profile | Best Platform |
|---|---|
| Expert professional (PhD, lawyer, engineer, coder) | Mercor |
| Skilled generalist with a degree | Outlier |
| Multilingual contributor or beginner | OneForma |
| You want the highest pay ceiling | Mercor |
| You want the easiest entry | OneForma |
| You want the best balance of access and pay | Outlier |
What Are These Platforms?
Before comparing them, it helps to understand what category each one belongs to.
Mercor is an AI-powered talent marketplace. Think of it less like a task platform and more like a next-generation staffing agency — it matches vetted professionals with longer-term contracts at AI labs, tech companies, and startups. Its primary focus is sourcing expert human feedback for Reinforcement Learning from Human Feedback (RLHF) projects.
OneForma is a global crowdsourcing and AI training platform operated by Centific (formerly Pactera EDGE). It specialises in multilingual AI data work — transcription, translation, linguistic evaluation, data annotation, and search quality rating. It is widely used for global localization projects.
Outlier is an AI training and evaluation platform operated by Scale AI — one of the world’s most prominent AI data companies, valued at over $13 billion. It connects subject-matter experts with AI companies that need high-quality human feedback to improve their models. Unlike general microtask platforms, Outlier positions itself as a premium marketplace for qualified contributors.
Platform Overview at a Glance
| Feature | Mercor | Outlier | OneForma |
|---|---|---|---|
| Parent Company | Mercor Inc. | Scale AI | Centific (Pactera EDGE) |
| Founded | 2022 | 2019 | Long-established |
| Valuation | $2B+ (2025), targeting $10B+ | $13B+ (Scale AI) | Private |
| Pay Range | $25 – $200+/hr | $15 – $100/hr | $4.50 – $45/hr |
| Average Pay | ~$85/hr | ~$25–$35/hr | ~$11–$20/hr |
| Entry Difficulty | High | Medium | Low–Medium |
| Work Availability | Inconsistent | Inconsistent | Inconsistent |
| Payment Schedule | Weekly (Stripe) | Weekly (Stripe) | Monthly |
| Global Access | Yes | Yes | Yes |
| Best For | Elite professionals | Skilled graduates | Beginners, polyglots |
Mercor: Deep Dive
What Is Mercor?
Mercor was founded in 2022 by two Stanford dropouts, Brendan Foody and Surya Midha, who were barely 21 years old at the time. The company raised a $100 million Series B at a $2 billion valuation in early 2025 and by September 2025 was reportedly approaching a $450–500 million annual recurring revenue (ARR) run rate, with sources indicating a target valuation of over $10 billion.
The core of Mercor’s business model is connecting AI labs (including OpenAI, Google, and other frontier AI companies) with domain experts who provide the human feedback those companies need to train better models. According to reporting from TechCrunch, Mercor was paying its pool of contractors over $1.5 million per day at its peak activity level — a figure that reflects just how much the AI industry values quality human input.
How Mercor Works
Mercor functions differently from traditional task platforms. Rather than picking and clicking through an open task feed, you apply once and enter a talent pool. From there, Mercor’s AI system matches your profile to relevant contracts.
The onboarding process:
- Connect your LinkedIn profile or upload your resume
- Complete an AI-conducted video interview (approximately 20 minutes)
- Complete any role-specific assessments (coding challenges, domain evaluations)
- Submit work authorization and background verification
- Enter the talent pool and wait to be matched
The AI interview can be retaken up to three times. Mercor recommends keeping answers to 45–90 seconds per question and using the STAR method (Situation, Task, Action, Result) for best results. Once matched, your hours are tracked using Insightful software, and you are paid weekly via Stripe.
What Tasks Are Available on Mercor?
Tasks on Mercor tend to be substantive, project-based engagements rather than micro-tasks. Common work includes:
- AI model evaluation and red-teaming
- Coding and software engineering for AI training datasets
- Legal, medical, and financial analysis for domain-specific AI models
- Writing and reasoning evaluations
- Data curation and quality control for frontier AI labs
The work is intellectually demanding and typically requires a genuine professional background to pass the screening stage.
How Much Does Mercor Pay?
Mercor offers some of the highest compensation rates in the entire AI training space. The platform-stated average is approximately $85 per hour across more than 30,000 contractors. Reported pay ranges span from $25 to over $200 per hour depending on expertise and domain.
Typical pay by category (reported by contractors):
- Software engineers: $60–$150/hr
- Domain experts (lawyers, doctors, PhDs): $80–$200/hr
- General AI training tasks: $25–$60/hr
- Top-tier, specialised engagements: up to $200+/hr on rare projects
Payment is processed weekly via Stripe, which is one of the fastest payment schedules available among AI training platforms.
Mercor Pros and Cons
Pros:
- Highest pay ceiling of any accessible AI training platform
- Weekly payment via Stripe
- “Apply once” model — no need to repeatedly apply for new projects
- Backed by serious funding and major AI lab clients
- Professional-grade work that builds your portfolio
Cons:
- Highly competitive and selective — not everyone gets matched
- Invasive monitoring software (Insightful) used during work hours
- Inconsistent work availability — not a reliable primary income
- Active legal controversies: a Scale AI trade secrets lawsuit (September 2025) and a worker misclassification class action (October 2025)
- Data collection concerns — some users allege interview data is used to train Mercor’s own AI (Mercor disputes this)
- Slow support response times
Who Should Use Mercor?
Mercor is best suited for experienced professionals — engineers, researchers, lawyers, doctors, scientists, and senior technical contributors — who want to monetise their expertise with maximum hourly earnings. If you have a strong LinkedIn profile, a documented technical background, and patience for an uncertain matching timeline, Mercor offers the best pay-per-hour in this category.
It is not a good fit for beginners, those without verifiable expert credentials, or anyone who needs consistent, predictable income.
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Outlier: Deep Dive
What Is Outlier?
Outlier AI is owned and operated by Scale AI, one of the most influential AI infrastructure companies in the world. Scale AI has raised over $1 billion in funding and is valued at over $13 billion. Outlier is Scale AI’s platform specifically designed for connecting subject-matter experts with AI training tasks.
Unlike general annotation platforms, Outlier is deliberately positioned as a premium option. It is not open to everyone — you must pass qualification tests to access projects — but the barrier to entry is meaningfully lower than Mercor’s. The platform has paid out over $10 million to a network of nearly 100,000 experts and continues to recruit contributors across multiple languages and disciplines.
How Outlier Works
Getting started with Outlier takes 30 to 90 minutes for the initial onboarding flow. The process is as follows:
- Create an account and provide your educational background, qualifications, and work experience
- Select subject-matter categories you want to contribute to (writing, mathematics, coding, science, reasoning, etc.)
- Pass qualification tests in your chosen categories
- Get matched to tasks based on expertise and performance history
Once active, contributors do not bid for work like traditional freelance platforms. Tasks are assigned based on your expertise profile and your track record. There is no client relationship to manage — you complete the task, submit it, and move to the next one.
Payment is processed weekly via Stripe, based on tasks completed in the prior week.
What Tasks Are Available on Outlier?
Outlier offers a broader range of task types than Mercor, making it more accessible to people with different skill sets:
- Ranking and rating AI-generated responses (the most common task type)
- Writing and editing prompts for AI training datasets
- Evaluating AI reasoning on mathematics, science, coding, and logic problems
- Generating creative content to train language models
- Reviewing AI outputs for accuracy, safety, and helpfulness
- Solving complex domain-specific problems (coding in Python or JavaScript, legal reasoning, medical analysis)
Task difficulty ranges from relatively straightforward response rankings to advanced multi-step reasoning challenges. The higher the complexity, the higher the pay rate.
How Much Does Outlier Pay?
Outlier operates on a task-based payment model. Pay rates vary based on project type, contributor tier, and subject-matter area. Based on reported contributor data and Glassdoor submissions:
- General AI evaluation tasks: $15–$25/hr equivalent
- Specialist tasks (coding, mathematics, science): $25–$50/hr
- Advanced domain expert tasks: $50–$100/hr
- Documented earner example: one contributor tracked eight months on the platform, starting at $25/hr and climbing to $30/hr after consistent performance
Annual salaries based on Glassdoor data (February 2026, 1,446 submissions) typically range from approximately $61,274 ($29/hr) for LLM Trainers to $136,910 ($66/hr) for AI reviewers.
An important caveat: rates have trended modestly downward compared to 2025. The floor is lower than it was twelve months ago, and access to the highest-paying specialist projects has narrowed as more credentialed contributors joined the platform. New users should calibrate expectations to the lower-middle of the pay range rather than the ceiling.
Outlier Pros and Cons
Pros:
- Operated by Scale AI — a credible, well-funded parent company
- Broad range of task types accessible to graduates across many disciplines
- Weekly payment via Stripe
- No client management — just focus on the work
- Flexible hours — work when you want
- Meaningful intellectual work contributing to real AI systems
Cons:
- Support is slow and impersonal (7+ day response times are common)
- Task availability is inconsistent — busy weeks can be followed by empty ones
- Pay rates have drifted lower compared to 2025
- Qualification tests are unpaid — you invest time to screen in before earning
- Platform bugs have been reported without adequate communication
- Not suitable as a primary income source for most contributors
Who Should Use Outlier?
Outlier is best suited for degree-holding professionals and skilled graduates — particularly those with backgrounds in writing, mathematics, coding, science, law, or medicine — who want meaningful AI work at solid pay rates without Mercor’s intense screening process. It strikes a reasonable balance between accessibility and compensation.
It is also a good choice for people who want to diversify across multiple platforms, since it covers more task types than either Mercor or OneForma.
OneForma: Deep Dive
What Is OneForma?
OneForma is a global crowdsourcing and AI training platform owned by Centific (the rebranded name for Pactera EDGE, a well-established global technology services company). It specialises in multilingual and language-based AI training work — making it particularly valuable for contributors outside the English-speaking world who possess strong language skills.
OneForma’s client base includes large enterprise tech companies that need human contributors for AI training, localization, search relevance evaluation, transcription, and linguistic quality assurance. The platform has operated for many years and has an established track record of paying contributors.
How OneForma Works
Signing up for OneForma is relatively simple, though qualifying for specific projects involves a multi-step process that can feel slow:
- Create an account and complete your profile
- Browse available projects and apply to those that match your location and qualifications
- Complete project-specific certification tests (these are unpaid)
- Wait for approval — this can take days to weeks depending on project demand
- Once accepted, tasks appear in your dashboard and you can begin working
- Completed and approved tasks are paid monthly
The certification process is thorough. For search quality rating projects, expect a 10–15 hour unpaid commitment to study guidelines and pass the scenario-based exams. This is a significant upfront investment before you earn your first dollar.
What Tasks Are Available on OneForma?
OneForma’s task types are heavily weighted toward language and data work:
- Search quality rating (evaluating search engine results for relevance and quality)
- Data annotation and labelling
- Transcription (audio-to-text)
- Translation and localisation
- Linguistic evaluation and natural language processing support
- Speech data collection (recording voice samples)
- AI training datasets in non-English languages
- Content moderation
- User experience testing
OneForma is particularly strong for multilingual contributors. If you speak a less-common language that is in demand for AI training — such as Swahili, Arabic, Vietnamese, or various European languages — you may find project availability higher than on Outlier or Mercor.
How Much Does OneForma Pay?
Pay on OneForma is project-dependent and varies significantly:
- Basic translation and quality assessment: approximately $11/hr
- Search quality rating tasks: $14–$18/hr (standard projects)
- Specialised annotation or technical tasks: up to $45/hr
- Simple data collection and voice recording: $30–$40 per project
- Coding-related tasks (such as PHP): higher rates, sometimes $45+/hr
The overall pay range is roughly $4.50 to $45 per hour, with most contributors landing in the $11–$20/hr range on typical projects. Pay is processed monthly via PayPal or Payoneer — a significant disadvantage compared to Mercor and Outlier’s weekly Stripe payments.
Glassdoor rates OneForma’s compensation at 2.6 out of 5 stars, with only 39% of contributors saying they would recommend the platform to a friend. However, a subset of long-term contributors report steady, well-paid work — particularly those who qualify for multiple ongoing projects rather than one-off gigs.
OneForma Pros and Cons
Pros:
- Accessible to beginners and non-English speakers
- Wide range of task types, particularly for language-focused contributors
- Backed by a legitimate, well-established parent company (Centific)
- Good option if you speak multiple languages in demand for AI training
- Some long-term projects provide relatively stable income for qualified contributors
- Work transparency — completed tasks, payment dates, and totals are visible in the dashboard
Cons:
- Lowest average pay of the three platforms
- Monthly payment schedule (versus weekly for Mercor and Outlier)
- Unpaid certification process that can take 10–15 hours
- Highly inconsistent work availability — feast or famine dynamic
- Slow and uneven communication from project managers
- Some contributors report “qualification fatigue” — passing tests only to find projects have closed
- VPN restrictions on some projects (a problem for contributors in certain countries)
Who Should Use OneForma?
OneForma is best suited for beginners entering the AI training space, multilingual contributors with strong language skills, and workers in countries where Outlier or Mercor have limited project availability. If you speak a language other than English fluently, OneForma may have more opportunities specific to you than the other two platforms.
It is best treated as a supplemental income source, not a primary one.
Head-to-Head Comparison: The Metrics That Matter
1. Pay Rates
Winner: Mercor
Mercor’s average of $85/hr and ceiling of $200+/hr is unmatched among accessible AI training platforms. Outlier is a solid second, particularly for specialists who can access the higher-tier projects. OneForma trails significantly, with most contributors earning in the $11–$20/hr range on standard tasks.
If maximum hourly earnings are your primary goal and you have the credentials to qualify, Mercor is the clear winner. If you don’t, Outlier is the realistic next-best option.
2. Ease of Entry
Winner: OneForma
OneForma has the lowest bar to entry. While its certification process takes time, there is no AI-conducted video interview, no background verification requirement, and no LinkedIn profile check. You can start applying to projects with a basic profile.
Outlier requires qualification tests but is broadly accessible to degree-holders across most disciplines. Mercor has the highest barrier — AI interviews, work authorization, background checks, and a vetting process designed to filter for elite professionals.
3. Work Availability
Winner: Tie (all three are inconsistent)
Inconsistent work availability is the biggest shared weakness across all three platforms. None of them should be treated as a primary income source for most people. Mercor’s “apply once, get matched” model can mean long waits between contracts. Outlier’s task feed fluctuates week to week, and the Aether project wind-down in 2025 reduced available hours for a meaningful subset of workers. OneForma’s project-based structure means you can have multiple projects running simultaneously or nothing at all.
Contributors who manage to qualify for multiple active projects on any of these platforms tend to have the most stable experience.
4. Payment Schedule
Winner: Mercor and Outlier (tied)
Both Mercor and Outlier pay weekly via Stripe. This is a meaningful advantage over OneForma, which pays monthly via PayPal or Payoneer. If cash flow matters to you — and for most people making money online, it does — weekly payment is a significant practical benefit.
5. Task Variety
Winner: OneForma
OneForma offers the widest variety of task types, particularly for language and data work. Outlier covers a broad range of cognitive and technical tasks. Mercor is the most specialised — the work is high-quality but narrower in scope.
6. Global Accessibility
Winner: OneForma
All three platforms accept international contributors, but OneForma is the most intentionally global. Its multilingual focus means it actively recruits contributors from more countries and in more languages. Mercor and Outlier are accessible globally but have historically had stronger task availability for contributors in the US, UK, and other high-income English-speaking markets.
7. Stability and Trust
Winner: Outlier
All three are legitimate platforms. But Outlier benefits from the backing of Scale AI, one of the most credible and well-funded companies in AI infrastructure. Mercor is credible but carries more legal risk, with active lawsuits filed in late 2025. OneForma (operated by Centific) is long-established but has lower contributor satisfaction scores and a weaker track record on worker experience.
Frequently Asked Questions
Is Mercor legitimate?
Yes. Mercor is a legitimate, well-funded AI talent marketplace backed by $100 million in Series B funding at a $2 billion valuation (February 2025). It connects real professionals with real AI labs and pays via Stripe. However, it carries active legal controversies — including a worker misclassification class action filed in October 2025 — and uses monitoring software during work sessions. It is legitimate but not without risks.
Is OneForma legitimate?
Yes. OneForma is a legitimate platform operated by Centific (formerly Pactera EDGE), a well-established global technology services company. Payments are real and processed for valid contributions. However, user experiences are mixed: some contributors report consistent, well-paid projects, while others report account deactivations, slow payments, and poor communication. Most negative reviews reflect inconsistent availability rather than outright non-payment for completed work.
Is Outlier AI legitimate?
Yes. Outlier AI is a legitimate platform operated by Scale AI, one of the most important AI data companies in the world. Contributors are paid for completed work. Platform bugs and slow support are ongoing issues, but the core business is real, the payments are real, and the parent company’s financial position is strong.
How much can you realistically earn from these platforms per month?
This depends heavily on your expertise, the platform you use, and work availability in any given period.
On Mercor, a matched professional working 20 hours per week at an average of $85/hr could theoretically earn $6,800/month — but matching is inconsistent and hours are not guaranteed.
On Outlier, a contributor working consistently on specialist tasks at $30/hr for 20 hours per week could earn approximately $2,400/month — again, subject to task availability fluctuations.
On OneForma, at average rates of $15/hr for 20 hours per week, monthly earnings would be roughly $1,200 — and monthly payment means you wait longer to access those funds.
Treat all three platforms as supplemental income with variable returns, not guaranteed monthly salaries.
Can you work on all three platforms simultaneously?
Yes. There is no exclusivity requirement on any of these platforms. Many experienced AI contributors join multiple platforms to smooth out availability gaps. A common combination is using Outlier for consistent base-level AI training tasks while maintaining a Mercor profile for higher-paying contract matches, and using OneForma for language-specific projects or filler work during slow periods.
Which platform pays faster?
Mercor and Outlier both pay weekly via Stripe — deposits typically arrive within a few business days of the week closing. OneForma pays monthly via PayPal or Payoneer. If cash flow speed matters to you, Mercor and Outlier are significantly better.
Do these platforms work for contributors in Africa and Nigeria?
All three platforms accept international contributors, including those in Nigeria and across Africa. However, practical availability differs.
OneForma tends to have the most accessible opportunities for African contributors, particularly those with strong language skills in non-English languages or with proficiency in evaluating English content. Outlier accepts contributors from Nigeria, though some projects have regional restrictions. Mercor is technically global but is most actively matched in North American and European markets due to where the majority of its AI lab clients are based.
For Nigerian contributors specifically, OneForma and Outlier are the most practical starting points. As your profile and reputation build on Outlier, access to higher-paying projects may follow.
Do these platforms require experience to join?
Mercor requires verifiable professional experience. Outlier requires passing qualification tests (which implicitly tests domain knowledge) but does not require prior experience on other platforms. OneForma is the most beginner-friendly — some projects require only basic skills and an internet connection, though more lucrative projects require demonstrated expertise.
What are the alternatives to these three platforms?
The closest alternatives worth considering in 2026 include:
- DataAnnotation.tech — well-regarded for accessibility and consistent tasks
- Appen — one of the oldest AI training platforms, strong for search evaluation
- TELUS International — formerly Lionbridge, strong for multilingual tasks
- Scale AI (direct) — the parent company of Outlier sometimes hires directly
- Invisible Technologies — structured, remote AI-related roles for team-based projects
- Aligner — a newer platform gaining attention in 2025–2026 for AI training tasks
- Stellar AI — notable for paying contributors during the qualification stage
Which Platform Should You Choose? Final Verdict
Choose Mercor if: You have a strong professional background — engineering, law, medicine, research, or advanced technical skills — and want the maximum possible hourly rate. You need patience for the matching process and tolerance for monitoring software and inconsistent availability. Mercor is not for everyone, but for those who qualify, it is the highest-paying option in this space.
Choose Outlier if: You have a degree and solid subject-matter expertise in any discipline — writing, mathematics, coding, science, or professional analysis — and want a credible platform with a reasonable chance of consistent work, weekly payments, and intellectually meaningful tasks. Outlier is the best all-around choice for most skilled professionals looking to make money online through AI training.
Choose OneForma if: You are new to AI training work, you are multilingual, or you are based in a country where the other platforms have limited task availability. OneForma is the most accessible entry point, and for contributors with the right language skills, it can provide steady supplemental income even if the pay rates are lower.
Use all three if: You are serious about maximising your income from AI training work. Building a presence across multiple platforms simultaneously is the most reliable way to smooth out the work availability problem that affects all three. Each platform’s task cycles and project timelines are independent, so being active on multiple platforms means fewer weeks with nothing to do.
The Bottom Line
The AI training industry is paying real money for human expertise, and platforms like Mercor, Outlier, and OneForma are the legitimate access points to that income. None of them are passive. All of them require real skills, real effort, and real patience. But for anyone with a background worth leveraging — whether that’s a PhD, a degree, a professional certification, or simply strong language skills — these platforms represent some of the most accessible and genuinely high-paying ways to make money online in 2026.
Start with the platform that matches your current credentials. Build a track record. Then expand.
This article is based on publicly available contributor reports, platform documentation, and independent platform reviews collected through June 2026. Pay rates and platform policies are subject to change. Always verify current rates and terms directly with each platform before investing significant time in onboarding.
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