Braintrust is an end-to-end platform that helps AI teams build and maintain reliable Large Language Model (LLM) applications by offering tools for prompt evaluation, logging, monitoring, and data management. It supports iterative experimentation and collaborative workflows, catering to both technical and non-technical users. Braintrust enables developers, data scientists, and product managers to assess model performance, manage datasets, and monitor AI interactions in real-time, ensuring robust and scalable AI product development.