Gretel

Gretel is a synthetic data platform that generates privacy-safe artificial datasets and anonymizes sensitive data via APIs, used to create training data, share data safely, and meet privacy requirements. In 2025 NVIDIA acquired Gretel and began integrating its technology and team into NVIDIA's developer AI services, so its standalone status has changed.

Gretel built a developer-focused platform for generating synthetic data: artificial datasets that statistically resemble real data but contain no actual personal records. Teams used Gretel's APIs and tools to create training data when real data was scarce, to safely share data across teams, and to anonymize sensitive information for privacy and compliance. The platform supported generating tabular, text, and other data types and included tools for evaluating the quality and privacy of the synthetic output. In March 2025, NVIDIA acquired Gretel in a reported nine-figure deal, exceeding the startup's prior valuation of around $320 million. Gretel and its roughly 80 employees were slated to be integrated into NVIDIA's growing suite of cloud-based generative AI services for developers. As a result, Gretel's status as an independent, standalone product has changed, and its capabilities are being absorbed into NVIDIA's broader platform. Because of the acquisition, prospective users should not assume Gretel remains available as a separate self-serve product with its former pricing. Anyone evaluating synthetic-data tooling should check current availability and how Gretel's technology is now offered through NVIDIA before making plans around it.