Expert medical data
for frontier AI.
Physician-generated clinical reasoning traces, RLHF datasets, and bespoke evaluation environments — consented, de-identified, and audit-ready.
Four data primitives. Built for post-training and eval teams.
Clinical Reasoning Traces
Step-by-step differential diagnosis, workup ordering, and treatment reasoning. Authored by attending physicians; peer-reviewed against ground truth.
RLHF & Preference Data
Pairwise rankings, expert critiques, and gold responses across triage, prognosis, and patient communication tasks.
Bespoke Eval Environments
Custom medical benchmarks and RL environments for clinical agents — including OSCE-style simulators and case-rollout grading.
Multilingual Medical Dialogue
Doctor–patient dialogue in Hindi, Tamil, Bengali, Telugu, Marathi and more — including the code-switched English used in real Indian clinics.
The structural edge.
We aren't a generic labeling vendor. GoArk is built on three properties of the Indian medical system that are difficult to replicate: credentialed scale, epidemiological breadth, and linguistic depth.
India has ~1.38M registered allopathic physicians (NMC, 2025) and adds ~128K MBBS seats annually — a deep, credentialed pool at strong cost efficiency vs. Western markets.
Disease and presentation diversity Western datasets lack: TB (incl. ~135K MDR-TB cases), dengue, drug-resistance (~297K direct AMR deaths), and malnutrition-linked comorbidity.
Scheduled-language coverage across Hindi, Tamil, Bengali, Telugu, Marathi and more — with code-switched clinical English. Vetted physicians produce data at scale without thinning expertise.
Built for legal review on day one.
Every dataset ships with the consent, de-identification, and chain-of-custody artifacts your data-protection and procurement teams need before the data ever touches a training run.
Three steps. No surprises.
Scope
We define the data spec with you — task structure, schema, eval rubric, language mix, and acceptance criteria.
Produce
Vetted physicians generate, with two-tier peer review by senior attendings. Calibrated against your gold examples.
Deliver
QA'd, audit-ready datasets in the format your training pipeline expects, with consent + provenance manifests attached.
Questions, answered directly.
The shortest path to a yes/no on whether GoArk is the right vendor for your post-training, RLHF, or evaluation workload.
GoArk is a human-data and evaluation infrastructure company that supplies frontier AI labs with expert clinical reasoning traces, RLHF datasets, and bespoke medical evaluation environments. All data is produced by credentialed Indian physicians and shipped consented, de-identified, and audit-ready.
Request a data sample.
Tell us what you're training or evaluating. We'll come back with a scoped data spec, a small sample, and a price.