Real-world grounding signal, at the scale frontier AI demands.

Alignerr is the platform that captures expert human judgment - across 200+ knowledge domains, 40+ countries, 2.6M+ contributors - and delivers it as structured signal that frontier AI systems need to be genuinely useful.

The most valuable training signal is the hardest to generate.

Verifiable rewards tell models what's correct. They can't tell a model whether a legal argument is sound, a financial model is well-reasoned, or a scientific explanation reflects how practitioners actually think. That judgment accumulates over careers - in courtrooms, trading floors, research labs, and operating rooms. It can't be synthesized.

Alignerr is the infrastructure that captures it at scale.

Expert signal infrastructure for frontier AI

Domain matching

Every task is routed to contributors whose credentials, experience, and domain background match the signal you need - not generalist raters approximating expertise.

Signal quality

Contributor performance is continuously calibrated against ground truth. Outputs are structured, graded, and validated before entering your pipeline.

Scale

2.6M+ contributors across 200+ domains and 40+ countries. Signal available across time zones, languages, and knowledge specializations without lead time.

Pipeline integration

Structured outputs delivered in formats compatible with your RL training, RLHF, and evaluation infrastructure - preference pairs, ranked trajectories, rubric-graded assessments, and more.

Expert coverage at global scale

The Alignerr network gives frontier AI teams access to the credentialed contributors, language coverage, and professional depth required for high-signal training and evaluation.

2.6M+

Knowledge contributors

50K+

PhDs

200K+

Master's degrees

85K+

Licensed professionals

40+

Countries

75+

Languages

200+

Professional domains

Expert signal across every knowledge domain

The breadth of Alignerr's contributor base means signal is available wherever your model needs grounding - from highly specialized scientific domains to the knowledge work that drives most enterprise value.

AI & Machine Learning Research

Research scientists, ML engineers, alignment researchers, AI safety specialists

Quantitative Finance

Quants, derivatives specialists, risk modelers, algorithmic traders, portfolio managers

Cybersecurity

Security researchers, penetration testers, threat analysts, malware reverse engineers

Life Sciences & Drug Discovery

Computational biologists, medicinal chemists, clinical researchers, biostatisticians

Software Engineering

Systems engineers, compiler engineers, distributed systems, kernel and infrastructure developers

Legal & Regulatory

M&A attorneys, IP lawyers, securities counsel, regulatory specialists

Medicine & Clinical Practice

Diagnosticians, clinical specialists, radiologists, surgical specialists

Mathematics & Formal Reasoning

Research mathematicians, logicians, formal verification specialists, statisticians

Physics & Advanced Engineering

Aerospace engineers, materials scientists, quantum researchers, nuclear engineers

Real-world signal from the world's largest economies

AI systems trained on narrow geographic or cultural signal inherit those blind spots. Alignerr's contributor base spans the markets where AI creates the most value - with local expertise and cultural context built in.

  • United States
  • India
  • United Kingdom
  • Germany
  • Canada
  • France
  • Japan
  • Brazil
  • South Korea
  • Australia

50 additional countries

Local, professional context for multilingual and market-specific AI training and evaluation.

Signal you can trust in production

Credential verification

Contributors are assessed through domain-specific skills tests and real-world task performance before contributing to any project.

Continuous calibration

Performance is monitored continuously. Signal quality degrades before it reaches your pipeline - not after.

Deep filtering

Filter by domain, credentials, years of experience, language, geography, and historical performance. The right contributors for every signal type.

Enterprise security

SOC 2 Type II certified. NDAs, data handling protocols, and security training that meet the requirements of leading AI labs.

The grounding signal your models can't generate themselves.

Alignerr captures what programmatic systems can't - the expert judgment, domain taste, and real-world reasoning that make frontier AI genuinely useful.

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