Who Sells Data 159 vendors · updated Oct 13, 2026Talk to the founder

ReasonCore

ReasonCore provides expert-curated AI training datasets, reinforcement-learning environments, and adaptive evaluations for frontier AI labs, emerging AI labs, and enterprises developing or deploying advanced models.

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Headquarters
Not publicly listed
Founded
2026
Headcount
11-50
Total funding
Not publicly listed
Latest round
Not publicly listed

Trust & data

How the vendor protects buyer material, where its data comes from, and where it can run.

Data sources
Built from customer dataExpert or contractor-created

Sources:reasoncore.aibenchmarks.reasoncore.ai

Quotes
  • Built from customer data: Labs can bring us an acquired corpus and we'll turn it into verifiable, RL-ready reasoning tasks.
  • Expert or contractor-created: Every scenario is independently authored by a domain expert, passes through two levels of expert review and editorial compilation, and gets **Pass@8** sampled to confirm adversarial validity and quality.
Stated confidentiality practices
Its terms require both parties to keep non-public engagement information confidential and use it only for the engagement; datasets may be delivered through secure channels.
Not publicly listed
SOC 2, Trust center, Other certifications, Deployment

What they sell

Delivery formats
Datasets
Not publicly listed
Named customers

Every change to these facts is kept in the public claims log. Record co_112ed105692f.