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Meridial by Invisible Technologies

Flexible AI projects that support the world’s most innovative companies

What to know

About Meridial by Invisible Technologies

Meridial is the expert contractor network operated by Invisible Technologies. Previously known as the Invisible Expert Marketplace, it connects professionals with projects where their knowledge is used to train, test and improve AI systems.

Invisible works directly with businesses and AI developers, while Meridial recruits and manages the specialists who contribute to these projects. This can include professionals in fields such as languages, science, law, finance, coding and safety. Invisible says its teams have contributed to the training of more than 80% of the world’s leading AI models.

AI data training work at Meridial

The work depends heavily on your background. Meridial recruits experts in areas such as languages, writing, coding, law, finance, insurance, business, education, science and safety. Some opportunities are also open to recent graduates or generalists who do not have previous AI experience.

Typical tasks can include reviewing AI answers, checking facts and reasoning, finding mistakes, comparing responses, labeling information and writing clear feedback. You may also create questions or tests for an AI model, evaluate safety issues or explain how a professional would handle a real-world situation.

The current Meridial project board shows how broad the work can be. Recent listings have included projects for language specialists, business professionals, police officers, insurance experts, programmers, audio specialists and many other subject-matter experts.

What is it like to work at Meridial by Invisible Technologies?

Meridial describes its experts as independent contractors rather than employees. You normally provide your own secure computer and internet connection, handle your own taxes and do not receive employee benefits such as paid time off or health insurance.

Most AI training opportunities are remote, but eligibility varies by project. Some are advertised worldwide, while others are limited to a particular country, language, location or device type. On its student and graduate information page, Meridial says there are no minimum or maximum working hours and that you can manage your own schedule. However, requirements can still differ between assignments, and applications may ask how many hours you are available each week. 

Joining the network does not guarantee paid work. Meridial reviews your profile against current project needs and sends an invitation when your skills match. Your profile remains active if there is no immediate match, which means gaps between projects are possible.

Pay also varies. Meridial says your rate is confirmed before you begin and that payments are issued directly. Current listings commonly show broad ranges such as $6 to $65 per hour, while some projects advertise $20 per hour or rates of up to $100 for specific expertise. 

Recent developments and media coverage

One recent development is Invisible’s agreement to acquire technical-assessment company WeCP, announced in March 2026. Invisible said WeCP’s assessment library would be integrated into Meridial to improve how specialist knowledge is verified.

Application process at Meridial by Invisible Technologies

You can start by choosing an open project or joining the general Meridial network. The application usually asks for your CV, education, languages, main skills, location and sometimes your weekly availability and preferred hourly rate.

Meridial’s application overview describes several verification stages. These can include confirming your email, verifying your identity, checking your aptitude and completing a workflow evaluation. A workflow evaluation is a practical test of whether you can follow the instructions and complete the type of task used on a project.

If you pass, your profile is activated in the network. Meridial says qualified students and graduates can sometimes begin reviewing project invitations within 48 hours, but this is not guaranteed. When a suitable project becomes available, you receive its details and can accept or decline it. 

Sources: Company website · WeCP acquisition


Information last updated August 2026.

Contributor signal

Average member ratings

Application process
3.0
★★★☆☆
Based on 1 reviewExperiences from November 2025
Application instructions
3.0/ 5
Updates after applying
3.0/ 5
Pay matched listing
100%
Interview experience
Not yet rated
Onboarding clarity
4.0/ 5
Work experience
3.0
★★★☆☆
Based on 3 reviewsExperiences from May 2024–December 2025
Payment reliability
4.7/ 5
Help when needed
4.0/ 5
Work enjoyment
3.7/ 5
Team communication
3.7/ 5
Work availability
0%2 responses

First-hand context

Member reviews

Each review shows when the experience happened and when Thriveth published it. Newest published reviews appear first.

Application & work experience

Application process

3 / 5

Applied to Meridial by Invisible Technologies: November 2025

Work experience

3 / 5

Worked with Meridial by Invisible Technologies: December 2025

Stressful experience

Maybe I was unlucky, but during the brief period of time I spent working here, I would never know if I was going to be able to do 1, 20, or 50 tasks. Work was very sporadic and the user experience was very convoluted because I was from the first batch of users trying the new Marketplace. I loved the project, though, and the payment was on time.

Role
Generalist
Hourly rate
$20 per hour
Work availability
Work was often unavailable or unpredictable
Show more experience detailsHide experience details
Furthest stage
Started working / contributing
Assessment paid
No
Onboarding paid
No
Pay matched listing
Yes
Relationship and timeframe evidence checkedPublished 2 Oct 2026

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Current opportunities

304 open roles

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Meridial by Invisible Technologies

English (Singapore) Language Specialist - Freelance AI Trainer Project

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Record scripts in the project language with accurate pronunciation, natural intonation, and clear articulation.

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Agentic Audio Specialist - Freelance AI Trainer Project

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Voice Talent - Marketplace

Record scripts in the project language with accurate pronunciation, natural intonation, and clear articulation.

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Image Data Contributor and Evaluator

This project focuses on evaluating how well an AI-powered photo product can understand and respond to user-contributed images and the context provided about them.

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AI Generalist (No Experience Required) - Freelance AI Trainer Project

In this project, you will interact directly with AI systems, review model outputs, follow clear task guidelines, and contribute to the creation of high-quality training data.

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Side by Side Factuality Evaluator

We’re looking for English-fluent experts to engage on a project about the factual accuracy of AI-generated content.

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Japanese Language Data Contributor (Multimodal) – Freelance AI Trainer Project

We’re looking for Japanese language specialists who live and breathe Japanese grammar, syntax, morphology, kanji, hiragana, katakana, phonology, and pragmatics.

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Occupation Task Auditing

A task is a professional work assignment with reference files, gold deliverables, and a scoring rubric.

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Audio Specialist- Freelance AI Trainer Project

A project dedicated to assessing and benchmarking advanced agentic audio models against leading systems.

$11–$30.65 per hourWorldwide
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Coding Specialist - Freelance AI Trainer Project

We’re looking for coding specialists who live and breathe computer science, software engineering, data structures, algorithms, databases, systems programming, and web development.

$8–$65 per hourUnited States
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Hindi Language Specialist - Freelance AI Trainer Project

We’re looking for Hindi language specialists who live and breathe Hindi grammar, syntax, morphology, phonology, semantics, and pragmatics.

$6–$65 per hourIndia