As AI applications scale, the choice of an LLM gateway becomes a critical architectural decision. This analysis compares leading options: self-built solutions, LiteLLM, Portkey, Kong, and One API. Key considerations include cost efficiency, latency, multi-provider support, and enterprise features like rate limiting and observability. Self-built gateways offer maximum control but require significant engineering effort. LiteLLM excels in simplicity and broad provider compatibility, making it ideal for startups. Portkey adds advanced routing and caching, while Kong provides a robust API management layer. One API is popular in the Chinese ecosystem for its unified interface. The right choice depends on team size, traffic patterns, and compliance needs. This guide helps teams evaluate trade-offs and avoid vendor lock-in.
This post provides a comprehensive comparison of LLM gateways including self-built options, LiteLLM, Portkey, Kong, and One API, targeting 2026 needs. It highlights critical factors like cost, scalability, and feature sets. For teams building AI products, this is a valuable decision-making resource.