Portkey AI

Portkey is an AI infrastructure platform that provides an intelligent gateway layer for managing LLM API calls in production environments. The platform addresses the operational challenges of running AI applications at scale — reliability, cost, performance, and observability — through a unified gateway that sits between applications and AI providers.

Portkey's routing capabilities intelligently direct API calls to different models or providers based on configurable rules — routing to cheaper models for simple requests, to more capable models for complex ones, and automatically failing over to alternatives when a provider experiences issues. This intelligent routing optimizes both cost and reliability.

The platform's fallback configuration ensures that AI applications remain operational even when primary AI providers experience outages or rate limits. Automatic failover to secondary providers or model versions maintains application availability without requiring manual intervention or custom error handling code.

Portkey's load balancing distributes API calls across multiple API keys or provider accounts, effectively expanding throughput beyond the limits of individual accounts. For high-volume applications that regularly hit rate limits, this distribution enables higher sustained throughput.

The platform's caching layer stores and reuses responses for semantically similar queries, reducing both costs and response latency. The semantic caching goes beyond exact match to find cached responses that are relevant to new queries, enabling cache hits for paraphrased or slightly varied versions of previously answered questions.