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ML Operations

HumanSignal

Data labeling and evaluation platform behind the Label Studio open source tool

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About HumanSignal

HumanSignal develops Label Studio, an open source data labeling tool, and Label Studio Enterprise for labeling, evaluation and quality control of training and model output data. It also provides managed annotation and expert evaluation services.

Common use cases

  • Training data labeling
  • LLM evaluation
  • Red teaming
  • Computer vision annotation

Products and services

Label Studio

Open source data labeling tool.

Label Studio Enterprise

Labeling, evaluation and quality-control platform with workforce management.

HumanSignal Data Services

Managed annotators and experts for labeling and evaluation.

Pricing and editions. G2 listing (vendor-supplied) shows a Starter Cloud plan for Label Studio billed monthly for up to 12 users, with Enterprise by quote.

Key features

  • Multimodal labeling
  • AI-assisted annotation
  • Quality review workflows
  • Model evaluation
  • Workforce management
  • Secure cloud or on-prem

Integrations

  • AWS S3
  • Google Cloud Storage
  • Microsoft Azure
  • PyTorch
  • Hugging Face

HumanSignal alternatives

FAQs

Is there a free version?

Yes, Label Studio is open source.

What does the enterprise product add?

Evaluation, quality-control, workforce management and security features.

Does it offer services?

Yes, managed labeling and evaluation teams.

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