Label Studio

Automated

Open source data labeling and AI evaluation platform for human-in-the-loop workflows, with an Enterprise edition for teams.

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Open Source

monthly

Free

Programmable labeling/evaluation interfaces
API and Python SDK
Webhooks for streaming predictions
Connect any storage or model
Computer Vision, Document & NLP, Audio & Speech support

Enterprise

custom

Custom

Vibe Code custom labeling/evaluation interfaces
Agentic trace review
RLHF & fine-tuning support
Custom LLM benchmarks and rubrics

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