Fairly Trained offers a certification program — called the Licensed Model (L) Certification — that evaluates generative AI companies to verify their AI models were trained exclusively on licensed or openly licensed data, without relying on unlicensed copyrighted material. As of mid-2025, the organization has verified roughly 20 small developers spanning image, music, singing voice, and large language model (LLM) categories.

Applicants submit written documentation of their training data sources, including the types of licenses obtained; Fairly Trained reviews the submission and may ask follow-up questions before granting certification. The certification covers entire companies, individual products, or individual models within a larger architecture; companies with only partially certified architectures are required to publicly disclose which elements are and are not certified. Certification is re-evaluated annually and can be revoked if a company's training data practices change. Pricing is scaled to organizational revenue, ranging from a $150 submission fee plus $500 annual fee for organizations under $100k revenue, up to higher tiers for larger organizations.