Agenta is an open source platform that streamlines the development monitoring and evaluation of applications powered by large language models by leveraging AI to enable collaborative prompt engineering systematic prompt versioning robust A/B testing and in depth observability Agenta allows users to easily experiment with and compare outputs from over 50 LLMs track performance and costs integrate user feedback and conduct detailed tracing and debugging It supports frameworks like LangChain and LlamaIndex and even allows for testing with image inputs and advanced agent workflows making it ideal for engineers product teams and researchers who want to accelerate LLM app iteration ensure reliability and optimize model performance through seamless collaborative workflows and data driven insights.