Jobs at Sapien
Sapien develops Proof of Quality (PoQ), an onchain infrastructure layer for verifiable AI data and output quality. It enables teams to define quality rubrics, obtain independent validator consensus, and receive auditable onchain attestations for training data, AI evaluation, expert review, and quality control.
Sapien develops Proof of Quality (PoQ), an onchain infrastructure layer for verifiable AI data and output quality. It enables teams to define quality rubrics, obtain independent validator consensus, and receive auditable onchain attestations for training data, AI evaluation, expert review, and quality control.
Maintainer signals as of 8/10/2026
Funding history
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About Sapien
Sapien AI Corp. operates Proof of Quality (PoQ), a protocol for turning expert or agent review into permanent, auditable quality signals. Teams submit data and define evaluation criteria; independent validators assess items against the rubric, consensus produces a verdict, and the result is sealed as an onchain attestation. Sapien provides documentation, SDKs, APIs, and integrations for AI builders and teams needing verifiable labeling, fine-tuning data, evaluation, audit review, and safety-critical quality gates while retaining control of their underlying data.
About Sapien
Sapien AI Corp. operates Proof of Quality (PoQ), a protocol for turning expert or agent review into permanent, auditable quality signals. Teams submit data and define evaluation criteria; independent validators assess items against the rubric, consensus produces a verdict, and the result is sealed as an onchain attestation. Sapien provides documentation, SDKs, APIs, and integrations for AI builders and teams needing verifiable labeling, fine-tuning data, evaluation, audit review, and safety-critical quality gates while retaining control of their underlying data.
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