Power your AI with human expertise.
Recruit vetted participants to generate high-quality data your models need to learn, align, and scale.
- Access skilled professionals in any industry
- Source hard-to-find experts for evaluation and fine-tuning
- Generate high-quality, large-scale training data with precision

However you train and evaluate.
One verified panel for every stage - evaluation, alignment, fine-tuning, and more.
Model evaluation
Benchmark model quality with structured human judgment at scale.
Agentic evaluation
Test multi-step agents and tool use against real-world tasks.
Alignment
Preference data and RLHF from verified people who reflect your users.
Fine-tuning
Domain-specific labeled data to specialize your model.
Multimodal
Image, audio, and video data judged by real people.
Multilingual
Native-speaker data across 100+ languages and cultures.
Real experts in the loop,
end to end.
Every task is real human judgment synthesized end to end.
Recruit verified experts
Hand-pick from 4.3M+ verified people across 50+ attributes and 100+ languages.
Humans rate, label & red-team
Preference data, safety probes, and edge cases - structured tasks across thousands of examples.
Better data, better model
Auditable, structured datasets delivered straight into training.
A loop that compounds.
Real human judgment, on a loop.
Improve your models with feedback from real, verified participants.
Recruit, gather human judgment, train, and evaluate - then run it again.
Built for high-quality AI data.
Verified human expertise, quality controls, and the full pipeline - from evaluation to fine-tuning.

Verified human expertise
Domain experts and everyday users - identity-verified across 150+ countries and 100+ languages.

Quality controls built in
Attention checks, inter-rater agreement, and fraud prevention keep every dataset clean.

The full pipeline
Evaluation, preference data, annotation, and fine-tuning - delivered into your stack via API.
One panel for every data need.
Evaluation, alignment, and fine-tuning data - from the same verified human network.



A global network of verified experts.
Wherever your model ships, recruit the real people who can judge it - by domain, language, and culture.
150+ countries
Recruit experts and everyday users wherever your model is used - real local judgment, not a US-only sample.
100+ languages
Multilingual and cross-cultural data from real native speakers - for models that work everywhere.
Verified & fraud-free
Identity-checked participants, sourced directly - never scraped, borrowed, or synthetic.