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Scale human judgment. Build better AI.

Labeling, evaluation, and quality workflows that deploy where your data lives, and scale with the world's most demanding AI teams.

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Evaluate models with nuance & precision

Capture nuanced human judgement to score model outputs with customizable rubrics, side-by-side comparisons, and traceable decisions.

Create custom benchmarks

Establish ground truth datasets and measure every model version. Monitor quality over time and identify where models fall short.

Get the most from subject matter experts

Build high quality datasets with customized interfaces to annotate PDFs, audio, video, sensor outputs, 3D models and other data at scale.

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Infrastructure to scale human judgment. Trusted by 1M+ AI practitioners.

our team or yours

Two ways to scale human judgment for AI

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DATA SERVICES

Let our labs handle everything

Let our expert annotators, data scientists, and project managers partner with your team to deliver high-quality, custom datasets tailored to your unique AI challenges.

Explore HumanSignal Services
Data collection and creation
Onsite workforces
Expert domains
Evals, red teaming, and fine-tuning
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LABEL STUDIO ENTERPRISE

Build your own internal factory on proven infrastructure

Use our agent skills and APIs to customize every labeling interface, integrate with your existing tools, and deploy within a secure cloud environment or on-prem to maintain full control.

Explore Label Studio Enterprise
AI-assisted annotation and evaluation
Custom benchmark creation
Quality review workflows
Traceable workforce management

a global community of over

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data scientists & AI engineers

HumanSignal is home to Label Studio, the world's most popular open source data labeling tool used, built, and supported by over 1,000,000 AI practitioners.

Bring high-quality AI to production faster.

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