THE HUMAN CONTEXT COMPANY
Human expertise to accelerate next-gen AI
AI learns from data. But only humans can ensure that data is accurate, nuanced, and safe. Sigma delivers trusted, scalable, and high-quality human-in-the-loop services to help you evaluate and enhance your gen AI systems — with insight only people can provide.
OUR SERVICES
What we offer
You bring the model. We bring the human intelligence.Sigma provides data annotation, validation, and feedback services — all grounded in deep research and strategic collaboration — across six essential service lines:
Truth
Ground your models in reality. Our experts validate facts, correct inaccuracies, and prevent hallucinations using workflows like ground truthing, attribution, and factual rewriting.
Learn about Sigma Truth
Perception
Align outputs with human expectation. We annotate tone, intent, and emotion — and run side-by-side evaluations to help your models speak with empathy, not just accuracy.
Learn about Sigma Perception
Protection
Build AI that’s safe by design. Our teams detect and remove PII, enforce data compliance, and perform red teaming to expose vulnerabilities before attackers do.
Learn about Sigma Protection
Integration
Teach your model to think in context. We support multimodal labeling, prompt engineering, iterative refinement, and RLHF — ensuring your AI reasons, not just reacts.
Learn about Sigma Integration
Meaning
Language is more than words. We deliver transcription, translation, and cultural calibration so your models grasp intent, nuance, and local relevance — across 700+ languages and dialects.
Learn about Sigma Meaning
Data
Start strong with the right training data. We source, collect, annotate, and synthesize diverse datasets that reflect real-world complexity and reduce downstream failure.
Learn about Sigma Data
Why partner with Sigma?
Trust
+ 18+ years in business.
+ Proven research, secure facilities, global compliance.
Quality
+ Precision workflows tailored for generative AI.
+ Human oversight to eliminate hallucination, bias & error.
Scale
+ Rapid ramp-up across languages, domains & formats.
+ Flexible sourcing and managed annotation teams.
Complexity
+ Strategic creation, refinement, and feedback loops.
+ Expertise in multimodal, multilingual, and high-risk domains.
How we can help you
We’ve built our business on helping to enhance and evaluate LLMs through the context only human data annotation provides. We offer:
- High-quality training data
- Accurate, attributable model outputs
- Cultural and linguistic nuance
- Secure, compliant processes
- Evaluation benchmarks or side-by-side tests
- Real human feedback — at scale
- High-quality training data
- Accurate, attributable model outputs
- Cultural and linguistic nuance
- Secure, compliant processes
- Evaluation benchmarks or side-by-side tests
- Real human feedback — at scale
Let’s build better AI, together
Whether you’re launching an enterprise LLM or fine-tuning an assistant for a specific domain, Sigma brings the human context that makes your AI smart, safe, and scalable.
