NEW10X Faster Labeling with Prompts—Now Generally Available in SaaS

Open Source
Data Labeling Platform

The most flexible data labeling platform to fine-tune LLMs, prepare training data or validate AI models.

Last Commit: April 4, 2025

Latest version: nightly


                # Install the package
# into python virtual environment
pip install -U label-studio# Launch it!label-studio

Label every data type.

GenAI

LLM Fine-Tuning

Label data for supervised fine-tuning or refine models using RLHF

LLM Evaluations

Response moderation, grading, and side-by-side comparison

RAG Evaluation

Use Ragas scores and human feedback

Flexible and configurable

Configurable layouts and templates adapt to your dataset and workflow.

Integrate with your ML/AI pipeline

Webhooks, Python SDK and API allow you to authenticate, create projects, import tasks, manage model predictions, and more.

ML-assisted labeling

Save time by using predictions to assist your labeling process with ML backend integration.

Connect your cloud storage

Connect to cloud object storage and label data there directly with S3 and GCP.

Explore & understand your data

Prepare and manage your dataset in our Data Manager using advanced filters.

Multiple projects and users

Support multiple projects, use cases and data types in one platform.

From the Blog

View All Articles
  • How to Evaluate and Compare LLMs Using Prompts in Label Studio

    Using LLMs to label data is fast—but is it accurate? This post shows two ways to evaluate model performance in Label Studio, with or without ground truth. Learn how to compare outputs, track accuracy and cost, and choose the right model for your workflow.

    Micaela Kaplan

    April 2, 2025

  • Craft the Greatest GPTs 😸

    In this post, we walk through a creative use case for Label Studio’s AI Assistant and Prompts: generating rich, image-based narratives. Follow along to see how you can build a project that combines structured labeling with a touch of storytelling.

    Sheree Zhang

    April 1, 2025

  • Tales from Our Community: Stop the Traffik

    When Stop the Traffik lost years of labeled data, they needed a faster, smarter way to rebuild. With Label Studio, they transformed their approach—bringing structure to messy reports, integrating AI for pre-labeling, and uncovering trafficking patterns hidden in plain sight.

    HumanSignal Team

    March 27, 2025

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