Human evaluation for frontier AI

Develop safe, aligned models faster, with 200k+ verified participants and Domain Experts.

The AI feedback paradox

Foundation models are starting to match human capabilities. But paradoxically, they need more human involvement, not less—just of a different kind.

Now developers face a critical constraint. Where do you find the right people with specific knowledge to evaluate models that are getting more complex by the day?

Finding the right expertise

Finding experts to challenge increasingly advanced AI models is hard to scale reliably.

Speed and quality

Developing faster while maintaining rigor and controlling costs creates constant tension.

Workflow integration

To stay competitive, you need to weave human feedback directly into your development processes.

The Human Intelligence Layer

Prolific connects you directly to 200k+ verified participants through an API-first infrastructure.

Unlike other vendors with hired annotation teams, we remove middlemen, speed up feedback cycles, and provide the expertise your models need.

Key capabilities

Expert access

Source annotations from Domain Experts across diverse fields.

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Speed and scale

See results in days, not weeks. Scale up or down as your project evolves.

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Seamless integration

Integrate your internal tools and workflows for maximum efficiency.

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Complete control

Get full visibility from participant selection to final deliverables.

Quality data across your development lifecycle

Alignment

Ensure AI systems are safe and reliable across diverse contexts and domains.

Evaluation

Assess performance, accuracy, and safety with rapid, high-quality human feedback.

Human data ops

Streamline feedback collection with enterprise-grade infrastructure.

Fine-tuning

Get specialized, high-quality data for fine-tuning AI models.

How fast-moving AI teams use Prolific

Trusted by AI/ML developers, researchers, and leading organizations across industries

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High-skilled annotators

Shovels used Prolific to find high-skilled, specialist participants to label building permits. These labels form the basis of quality datasets that become a baseline for the accuracy of their AI model.

Text-to-image AI models

Prolific’s streamlined participant management process meant the researchers could achieve a high level of engagement and satisfaction among participants. This was necessary for obtaining high-quality data.

Research the future of work

By offering a user-friendly platform, pre-verified participants, and advanced screening options, Prolific enabled Asana to immediately customize their target audience with extreme precision.

Build foundational models faster

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