The Pydantic AI Gateway (PAIG) is introduced as a solution to the complexities of managing large language models (LLMs), addressing issues such as API key management, rate limits, and unexpected costs, by offering a streamlined approach through a single key without the need for translation between different providers' formats. This new gateway aims to provide a superior developer experience by integrating with the existing Pydantic stack, facilitating immediate use of new features from providers like OpenAI, Anthropic, and Google without waiting for updates. PAIG emphasizes observability and control, offering features such as built-in cost limits, failover capabilities, and detailed logging for full traceability of LLM calls. The core gateway is open-source and designed to be low-latency by leveraging Cloudflare's edge compute network, while additional enterprise features like a hosted UI and SSO remain closed-source. Currently in open beta until December, PAIG is free to use as it gathers user feedback, with future pricing details to be announced closer to general availability.