Relari (YC W24) is an advanced platform specifically designed to support AI teams in the simulation, testing, and validation of complex Generative AI applications. It provides a comprehensive toolkit including modular evaluation, synthetic data generation, and performance monitoring, all aimed at enhancing the reliability and efficiency of AI systems, especially in mission-critical scenarios. With Relari, users can define test cases for agents using innovative Agent Contracts, allowing for clear and straightforward test case management in natural language. The platform’s robust Synthetic Data Generation capabilities enable the expansion of test cases by 100x, offering extensive datasets to enhance testing accuracy. By pinpointing issues with precision, Relari empowers users to effortlessly refine and improve their agent-based applications, ensuring optimal performance and innovation throughout the AI development lifecycle.