We help the most ambitious AI teams build responsible, high impact models at the frontier of intelligence.
Exceptional AI starts with exceptional humans.
That’s why we built the world’s largest dataset of domain experts, focused on the areas where AI can create the most value for humanity.
How we help you build Exceptional AI
Human Data
The best don’t apply to RLHF jobs. Rapidly onboard experts who unlock your researchers' ability to iterate quickly, pushing model performance forward without delay.
Custom, Practical Tests
Custom-crafted, practical benchmarks designed and vetted by experts to ensure meaningful, lasting insights that keep you ahead of model saturation.
Pre-Launch Evaluation
Swiftly orchestrate precise human experiments with a range of testers delivering actionable insights for any stage of model deployment across CBRN and other critical domains.
AI powered by your data
Best in class Agentic Applications and Data Systems crafted specifically for needs using frontier research to solve tough business problems.
Frontier Model Training
Sepal AI pairs global talent search, AI accelerated vetting, and best in class human‑data operations so that your data pipelines runs faster and safer.
Relied on by top AI teams that can’t afford failure.
Sepal's Global Talent Search tooling enables access rare expertise.
Flexible Talent Graph enables teams to tap pre-vetted in days.
Empowering End to End enablement from training, eval, and testing.
Focused on domains that create economic value, tackling the toughest safety and capability gaps.
Human‑centric processes that protect society and deliver better outcomes for clients and contributors.
Global Talent Search
We enable our customers to scale to hundreds of experts in weeks through AI vetting and Global Talent Search.