Pydantic AI Gateway is Moving to Logfire

Pydantic AI Gateway is being integrated into Pydantic Logfire to streamline user experience by centralizing gateway management and observability for LLM applications under one platform. This merger aims to eliminate the previous friction of having separate accounts and billing systems, thereby providing a more coherent understanding of application usage by correlating gateway traffic with application traces. The consolidation enhances visibility into application performance, allowing users to query metrics and traces together and gain comprehensive insights into cost, latency, and errors. Additionally, the integration introduces the LLM Playground in Logfire, which facilitates prompt testing and iteration with automatic tracing for faster feedback. The transition also brings Logfire's enterprise capabilities, such as SSO and fine-grained permissions, to the gateway, improving access control and compliance. Migration is simplified by generating a new API key from Logfire, ensuring a seamless shift to the new system.