RLHF
Human preference data and structured reward signals to optimize model behavior.
Human Intelligence for the AI Era
Halo by Arise is the human feedback engine for the foundation model era. We combine 200,000+ skilled evaluators with enterprise‑grade operations to help model builders train, refine, and safeguard their AI systems.
Training and Guardrailing the Next Generation of AI
Comprehensive managed services that accelerate performance and ensure safety across the model lifecycle.
Labeling & Annotation
High‑quality labeling across text, image, audio, and multimodal datasets.
Evaluation & Red‑Teaming
Systematic testing for safety, bias, and performance across domains.
Preference Ranking
Human scoring of outputs for relevance, coherence, and style.
Safety & Alignment
Human review for harmful, biased, or inaccurate outputs across use cases.
Custom AI Ops Workforce
Deploy trained evaluators on demand for proprietary tasks and private data.
Human Feedback at Enterprise Scale
Powered by Arise’s global workforce, Halo delivers precision, scalability, and security for mission‑critical AI programs.
200,000+ Skilled Workers
Flexible global workforce deployed on demand, across time zones.
Domain‑Specialized Teams
Healthcare, finance, robotics, legal, and more — calibrated for your tasks.
Multilingual & Global
Coverage across regions and languages for training and evaluations.
Governance & Compliance
Enterprise‑grade data handling, security controls, and auditability.
Quality Assured
Multi‑layer QA, gold‑standard checks, and continuous calibration.
Seamless Integration
Private deployments and secure workflows that fit your stack.
Supporting Builders of the Intelligent Future
From frontier labs to applied AI, Halo partners with teams that demand performance and trust.
Foundation Model Builders
Robotics & Autonomy
AI Safety & Alignment
Healthcare & Pharma
Finance & Legal
AI Data & Infra
Foundation Model Builders
Training, alignment, and evaluation services for large-scale models.
Robotics & Autonomy
Feedback and evaluation loops for perception and control systems.
AI Safety & Alignment
Human oversight, red‑teaming, and policy testing for safe and ethical AI deployment.
Healthcare & Pharma
Domain‑expert evaluations for clinical, biomedical, and life‑sciences models.
Finance & Legal
Compliance‑ready feedback, accuracy testing, and citation verification.
AI Data & Infra
Scalable human‑in‑the‑loop processes for secure model data pipelines.
Join the Future of Human‑AI Collaboration
Become part of Halo’s evaluator network and help shape the world’s most advanced AI systems — from training data to safety reviews.
Partner with Halo
Tell us about your program. We’ll assemble the right team and quality framework for your success.