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LABEL STUDIO

CEO: MICHAEL MALYUK HEADQUARTERS: CALIFORNIA, US FOUNDED: 2019

Label Studio is an open-source data labelling and annotation tool owned by HumanSignal( formerly Heartex). It can be used for agentic traces, RLHF and fine-tuning, LLM evaluations as well as RAG and Retrieval QA. On its website, it claims to be trusted by leading AI builders like Meta, Cloudflare, NVIDIA, IBM and Intel. Its native ML / AI pipelines( API, Python SDK and webhooks) let developers create projects, stream predictions and trigger training, active learning and evaluation workflows in real time. Michael Malyuk CEO Label Studio

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Multimodal data creation from scratch

38 September 2026