kitio.aiAdded Nov 5, 2026
Prolific
PaidHuman feedback and study participants for AI training, evals and research
What is Prolific?
Prolific connects AI developers and researchers with verified human participants who complete studies, rate model outputs and build evaluation data. AI teams use it for preference tuning and safety evals, while academics use it to run surveys and experiments quickly.
For AI work, Prolific offers agentic evals and benchmarks, a human feedback API, access to domain experts such as healthcare and coding specialists, and its HUMAINE leaderboard of human preferences for LLMs. Ai2, for example, used it to cut human data collection for multimodal models from weeks to hours.
Researchers set up a study, pick an audience from the participant pool and pay rewards plus a platform fee, with no contract or subscription required. Developers can connect through the API, a GitHub presence and an MCP server, and managed services are available for larger projects.
Features
- Human feedback for AI
- Agentic evals and benchmarks
- Verified participant pool
- Domain expert panels
- Human feedback API
- MCP server
Tags
Releases
+ Submit new release- Listed
Prolific was added to the directory.
Organization
Prolific
🇬🇧 United Kingdom
Listed by kitio.ai · unverified owner
Pricing
- Pricing model
- Paid
- Paid options from
- Not listed
Prolific plans
Academic
33.3% platform fee
- For academic and non-profit teams
- Fee on top of participant rewards
Corporate
42.8% platform fee
- For companies
- No contract or subscription
Managed Services
Contact sales
- Expert guidance
- Larger AI data projects
Prices in USD, checked Nov 5, 2026. Plans change often, so confirm on the Prolific site.Official pricing
Sponsored
Your AI tool here
A Featured launch puts your tool in this spot and on the home page for a week.
Top Prolific alternatives
View allData & analytics
Product analytics platform with AI agents for insights
Data & analytics
Survey builder that drafts questions with AI and templates
Data & analytics
Event-based product analytics with AI-assisted queries
Compare Prolific
If you liked Prolific
Cloud data platform with Cortex AI and Snowflake Intelligence
Free trialData & analytics1 views1 clicks to the websiteMade in United States- MedalliaNew
Experience management platform with AI analysis of customer feedback
PaidData & analytics1 views1 clicks to the websiteMade in United States Data and AI platform with Genie for natural-language analytics
FreemiumData & analytics3 views2 clicks to the websiteMade in United StatesMicrosoft's AI assistant and agent mode built into Excel
From $9.99/moData & analytics2 viewsMade in United StatesFree hosted Jupyter notebooks with GPUs and Gemini built in
Freemium · $9.99/moData & analytics2 views1 clicks to the websiteMade in United States
Pros and cons
Pros
- Pay as you go with no contract
- Large verified participant pool
- Discounted fee for academics
Cons
- Platform fee adds over 40% for companies
- Participant rewards are paid on top
- Not a self-contained labeling tool
Prompts & results
No prompts yet. Add your own prompt and output to help others use this tool.
Share a prompt
Reviews
Q&A
What is Prolific?
Prolific connects AI developers and researchers with verified human participants who complete studies, rate model outputs and build evaluation data. AI teams use it for preference tuning and safety evals, while academics use it to run surveys and experiments quickly.
How does Prolific charge?
You pay participant rewards plus a platform fee, usually 42.8% for corporate customers and 33.3% for academic or non-profit customers.
Can developers access Prolific programmatically?
Yes. Prolific offers a human feedback API and an MCP server for agent workflows.
How much does Prolific cost?
Prolific is paid.
Is there a free version of Prolific?
No. Prolific is a paid tool.
What are the main features of Prolific?
Human feedback for AI, Agentic evals and benchmarks, Verified participant pool, Domain expert panels, Human feedback API, MCP server.
Who makes Prolific?
Prolific is made by Prolific.
What are the best alternatives to Prolific?
Popular alternatives include Sigma AI, Amplitude, SurveyMonkey.