Quality by design
Rubrics, calibration, and review loops are engineered into every project — not bolted on at the end.
We bring together senior practitioners across medicine, law, engineering, and dozens more domains — then pair their judgement with the labs building the next generation of AI.
Our impact across the globe
Why we built Lona
Frontier models impress in demos. They stumble in production — on edge cases, regulated domains, and tasks that require real judgement. That gap is not closed with more compute.
Lona exists to make expertise first-class infrastructure. We curate the practitioners, design the rubrics, and run the quality programme that turns impressive outputs into dependable training signal.
Operated by Ployos, the team has spent the better part of a decade building expert networks and evaluation programmes for AI laboratories — sometimes inside labs, sometimes for them.
Passionate about the journey
Rubrics, calibration, and review loops are engineered into every project — not bolted on at the end.
Experts across time zones and languages, matched to projects that fit their background and schedule.
Clinicians, engineers, attorneys, linguists — senior practitioners who expect their expertise to be respected.
What we provide our experts
Contribute from anywhere. Projects span coding, medicine, law, linguistics, finance, and more — matched to your domain.
Published rates from $25 to $95 per hour depending on domain and seniority. Paid monthly, on time.
Claim tasks when you have time. No minimum hours, no fixed shifts — you set the pace.
Your judgement feeds directly into next-generation reasoning, coding, and evaluation models.
Clear briefs, published rubrics, and direct feedback — you always know what good looks like.
Identity verification, domain assessments, and secure workflows for regulated work.
Trusted by leading AI laboratories
Sign up with email and verify your identity.
Tell us about your domain expertise and experience.
Pass a short domain assessment for your field.
Get matched to projects and claim tasks on your schedule.
We add experts, domains, and projects every week.