Portkey AI

AI Gateway for LLM API Management

Portkey AI is an AI gateway and observability platform that sits between your application and LLM providers, adding a critical infrastructure layer for managing API calls with features like fallbacks, load balancing, caching, and cost tracking. It gives engineering teams the reliability and visibility controls needed to run LLM-powered applications in production at scale.

Production LLM Reliability

LLM APIs suffer from rate limits, outages, and inconsistent latency. Portkey addresses these production concerns by routing requests intelligently — automatically falling back to alternative models or providers when the primary fails, load balancing across API keys to avoid rate limits, and caching repeated requests to reduce both cost and latency. These features dramatically improve the reliability of LLM-powered applications.

• Automatic fallback routing across LLM providers
• Load balancing across multiple API keys
• Semantic caching to reduce redundant LLM calls
• Unified observability across all LLM providers
• Guardrails for input/output filtering and safety

Cost and Performance Optimization

Portkey's caching layer stores semantically similar requests and returns cached responses instead of making new LLM calls, directly reducing API costs. Its detailed analytics break down spending by model, feature, user, and team — giving engineering leaders the visibility needed to optimize LLM costs as usage scales.