Helicone and Braintrust are two platforms that cater to different needs within the realm of Large Language Model (LLM) observability and evaluation. Helicone offers a comprehensive observability platform designed for teams of all sizes, featuring easy setup, extensive analytics, logging, and robust security measures, making it suitable for the entire LLM lifecycle. It supports integration with various LLM providers and provides a user-friendly interface that accommodates non-technical team members. On the other hand, Braintrust focuses primarily on advanced evaluations for enterprise teams, offering tools for testing and optimizing LLM performance, such as trials and CI/CD integration, though it requires more technical expertise. While both platforms provide prompt management and experimentation capabilities, Helicone excels in cost optimization and security, whereas Braintrust is stronger in evaluation capabilities. Pricing models differ, with Helicone offering transparent tiered pricing and Braintrust focusing on custom enterprise pricing.