SuperAnnotate is an enterprise AI data labeling platform founded in San Francisco in 2018, known for efficient labeling tools and AI-assisted pre-labeling that cut annotation workload by about 50%-80%, with a production-grade quality review system.
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Snorkel AI is a data-centric AI development platform founded in 2019 by a Stanford team. Its core product Snorkel Flow uses programmatic labeling and weak supervision to cut manual annotation cost by about 50%-90% and accelerate model iteration.
Labelbox is an enterprise AI data labeling platform founded in San Francisco in 2018. Its Data Engine drives high-quality training data production for 1000+ customers in autonomous driving and medical imaging.