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DataData overview →What Quarry supplies, and how labs get it
  • Conversational audioReal calls in Indian and global languages
  • Medical imagingCT, MRI, mammography and X-ray with reports
  • CatalogueEvery licensable dataset, as a deal sheet
  • Demand boardWhat frontier labs are asking for
Data ownersSell your data →License your archive without data leaving
  • Value your dataA two-minute, private estimate
  • Demand boardOpen requests you could fill
  • Refer an ownerGet paid for the introduction
TrustTrust center →Can we sign with Quarry? One screen
  • De-identification and privacyWhat leaves, and how risk is tested
  • SecurityInfrastructure, access, incident response
  • Provenance and licensingRights review and chain of title
  • ComplianceStatus per framework, honestly labelled
  • SubprocessorsWho processes data for Quarry
  • Request documentsQuestionnaires, policies, DPA
DocsDocs home →The reference both sides read
  • Get startedHow licensing and listing work
  • Data specsFormats, metadata, quality scoring
  • De-identificationAt-source architecture and reports
  • Provenance and licensingManifest schema, licence types
  • DeliveryMethods, packaging, checksums
  • For data ownersOnboarding, the at-source agent, payouts
  • API and agentsCatalogue, demand, MCP, llms.txt
  • ChangelogWhat changed, newest first
CompanyAbout Quarry →Why we exist, and how it works
  • ResearchNotes from the supply side
  • CareersWork with us
  • PressWordmark, boilerplate, contact
  • ContactTalk to a person
Sell dataRequest data
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Research

Notes from the supply side.

What we learn sourcing data that isn't on the open web. Each note has its own core sample: hover one to see its layers.

rest
  1. 0413 Oct 2026Contamination in public evalsBenchmarks only work if the test is new to the model. Here's how tests leak into training data, and how to check.Evaluation
  2. 039 Oct 2026De-identifying radiology at the sourceHeaders, pixels and reports: how a radiology study is made safe before it ever leaves the hospital.Medical imaging
  3. 026 Oct 2026The case for Indian-language speech dataCode-mixed, conversational, narrowband: why real calls teach speech models what read speech can't.Speech
  4. 012 Oct 2026What makes data worth licensingFive qualities that separate data that is merely available from data a lab should pay for.Supply

More in Company

  • About QuarryWhy we exist, and how it works→
  • CareersWork with us→
  • PressWordmark, boilerplate, contact→
  • ContactTalk to a person→
quarry

The data supply company for frontier AI. Licensed, de-identified at source, delivered with a paper trail.

Request data →

Data

  • Data overview
  • Conversational audio
  • Medical imaging
  • Catalogue
  • Demand board

Data owners

  • Sell your data
  • Value your data
  • Demand board
  • Refer an owner

Trust

  • Trust center
  • De-identification and privacy
  • Security
  • Provenance and licensing
  • Compliance
  • Subprocessors
  • Request documents

Docs

  • Docs home
  • Get started
  • Data specs
  • De-identification
  • Provenance and licensing
  • Delivery
  • For data owners
  • API and agents
  • Changelog

Company

  • About Quarry
  • Research
  • Careers
  • Press
  • Contact
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