Label Studio
The most flexible open-source data labeling platform for AI models and LLM fine-tuning.
Updated: May 2026
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The most flexible open-source data labeling platform for AI models and LLM fine-tuning.
Build, fine-tune, and run open-source AI models with the familiarity of leading platforms.
Open-source AI models with GPT-4 level performance at 27x lower cost
The data factory for AI teams building at the frontier, from reinforcement learning to custom evaluations.
Turning AI models into supermodels with 3x faster inference and 75% lower cost.
The open-source, secure cloud environment for enterprise-grade AI agents and LLM training.
The all-in-one platform to build, fine-tune, and deploy Vision AI models for enterprises and developers.
A development platform for building and evaluating LLM applications.
Seamless software localization and translation management system for global reach.
Accelerate machine learning development by abstracting infrastructure complexities.
Accelerate deep learning development and deployment with an open-source platform.
Pioneering AI and open-source research for building and deploying large models.
Based on our analysis, Label Studio is the top choice for startups, with a score of 90/100.
Yes! Label Studio, Inworld AI, Forefront offer free plans suitable for startups.