Sigma AI

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Sigma AI is a Data & Analytics tool that provides human data annotation services to test, measure, and improve generative and agentic AI. They offer expertise in hundreds of languages and domains for complex, high-quality annotation at scale.

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At a glance

Pricing

Custom

Free tier

API

Skill level

Technical

About

What is Sigma AI?

Sigma AI specializes in providing human data annotation services to enhance and refine generative and agentic AI models. They offer a comprehensive suite of services including Sigma Data for collecting and curating multilingual datasets, Sigma Integration for linking multimodal data, Sigma Meaning for linguistic annotation, Sigma Protection for red-teaming and safeguarding LLMs, Sigma Perception for capturing emotion and tone, and Sigma Truth for grounding LLMs in human research-verified facts. With experts in hundreds of languages and domains, Sigma AI helps clients achieve smarter, safer LLMs by delivering complex, high-quality annotation at scale, ensuring nuance, judgment, and creativity in AI outputs.

Best used for

Ideal for data scientists and product managers who need to source and annotate training data, improve model accuracy, and ensure the safety and ethical performance of generative AI. Especially valuable for organizations requiring complex, high-quality annotation across multiple languages and domains for LLMs and other AI systems.

Common actions

annotate data

improve AI models

collect training data

test LLMs

safeguard AI

Capabilities

Key features

Human data annotation
Multilingual data collection
Multimodal data integration
Linguistic annotation
LLM red-teaming
Fact-based LLM grounding
Emotion/tone capture

Target Audience

data scientistproduct managerdeveloperstartup founder

Integrations

Not yet documented

Pricing & Plans

Custom

Not publicly disclosed. Check sigma.ai for current pricing.

FAQs

What types of data annotation does Sigma AI support?

Sigma AI supports a wide range of data annotation types, including audio, image, video, and text annotation. They can handle complex, multimodal data sets to help AI interpret real-world scenarios and understand nuance.

How does Sigma AI handle pricing for its services?

Sigma AI offers two primary pricing models: hourly-based and unit-based. The choice between these models depends on client preferences and the specific type of data annotation required. Larger data volumes generally lead to lower per-unit or per-hour costs.

What languages and dialects can Sigma AI annotate?

Sigma AI supports annotation in over 500 languages and dialects. They continually add to the languages they serve and encourage clients to contact them with specific language requirements to ensure their needs can be met.

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