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FastLabel vs Heartex
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No offer right now
Focus
AI Annotation and Labeling
AI Annotation and Labeling
Product
Japanese MLOps platform combining data labeling, model management and annotation workforce services for AI teams.
Enterprise data labeling platform built on Label Studio for managing annotation projects at scale with ML integration.
Headquarters
Tokyo, Japan
San Francisco, California
Company size
51-200 employees
51-200 employees
Free options
Free plan, Free trial
Source updated
Oct 29, 2026
Oct 29, 2026
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Security reviews
Security and migration
Case studies and sources
Case studies
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AI Annotation and Labeling
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