









If you hold deep credentials or broad technical capabilities, there's meaningful AI work for you.








Every engagement is scoped via a Statement of Work, so you see what's involved, what it pays, and length of the project before you commit. Work when it suits you, on the engagements that fit your expertise.*
Fill in your profile, indicate your skills, and complete a brief confirmation step.
Find engagements that fit.
Sign Statement of Work and choose when you engage.
*
Access to the Meridial network does not guarantee project engagements. Project availability varies based on client needs, expertise needed, and geographic eligibility. Meridial connects independent contractors with AI training opportunities — contributors are not employees of Meridial. Rates are confirmed before you begin.
Don't just take our word for it — see what our experts are saying.
"Engaging with a broad spectrum of projects has allowed me to apply my diverse skills and expertise and has been a rewarding experience."
"My engagements with Meridial have allowed me to take on projects that align with my motivation and utilize my expertise."
"Meridial's network allows me to structure my day efficiently, balancing personal and professional commitments."
"The flexibility of project-based tasks on the Meridial network has allowed me to better manage my professional and personal priorities, selecting engagements that fit my schedule."
"I get to challenge myself and learn new things, while being able to get my son off to school every morning and be present for family and friends."
"My background in STEM and fiction writing allows me to bring both analytical precision and creative insight to my projects."
"I balance my time between studying for the GRE, making music, doing occasional counseling, and training AI models through Meridial."
"It's nice to have this opportunity of being involved in many sectors of the human process for AI training, and Meridial provides that flexibility to all experts."
"Engaging with a broad spectrum of projects has allowed me to apply my diverse skills and expertise and has been a rewarding experience."
"My engagements with Meridial have allowed me to take on projects that align with my motivation and utilize my expertise."
"Meridial's network allows me to structure my day efficiently, balancing personal and professional commitments."
"The flexibility of project-based tasks on the Meridial network has allowed me to better manage my professional and personal priorities, selecting engagements that fit my schedule."
"I get to challenge myself and learn new things, while being able to get my son off to school every morning and be present for family and friends."
"My background in STEM and fiction writing allows me to bring both analytical precision and creative insight to my projects."
"I balance my time between studying for the GRE, making music, doing occasional counseling, and training AI models through Meridial."
"It's nice to have this opportunity of being involved in many sectors of the human process for AI training, and Meridial provides that flexibility to all experts."
Meridial is an expert contractor marketplace powered by Invisible Technologies. We connect domain experts, in law, STEM, finance, coding, linguistics, safety, and other fields, with AI training projects that require specialized human knowledge and judgment.
Meridial is for subject matter experts across domains including law, medicine, coding, finance, creative writing, and others, who want to contribute and provide their services to frontier AI development.
Meridial experts provide critical feedback through traditional Reinforcement Learning from Human Feedback (RLHF) and Supervised Fine-tuning (SFT) processes like writing and answering prompts, evaluations, ranking responses, improving chain of thought reasoning, and red-teaming. Additionally, experts play a critical role in creating Reinforcement Learning (RL) environments, performing tasks like environment design, trajectory validation, judge model calibration, reward signal design, and edge case identification.
Experts create a profile, complete a brief confirmation step, and browse available opportunities for engagement. Those matched to a project sign a Statement of Work and contribute on their own schedule. There are currently 700+ engagements across 12 domains.
Earnings are set per project and determined by experience and expertise. Meridial publishes the rate range on each engagement, so experts can assess the opportunity before engaging.
Meridial sources engagements directly from the labs building frontier AI, rather than operating as an open marketplace. Domain expertise is matched with specific projects, giving experts access to cutting-edge work from top frontier models and enterprises.