Directory · Routing layer

Routers & gateways

Can't pick one model? Route per request. 17 verified gateways and routers, updated daily.

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4 of 17 active routers

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Helicone

GatewayOpen sourceHosted SaaSReliabilityCost

Subscription

Observability-first AI gateway with routing, caching, rate limiting, and request tracing; Apache 2.0 open-source core with a managed hosted tier for logging and analytics.

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Kong AI Gateway

Kong Inc.

GatewayCommercialSelf-hostedCostLatency

Subscription

Multi-LLM AI gateway built on Kong Gateway 3.x, adding semantic routing, load balancing, guardrails, and MCP traffic analytics as plugins over Kong's existing API management platform.

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LiteLLM

BerriAI

GatewayOpen sourceSelf-hostedCostReliability

~100 models · Free OSS

Open-source Python SDK and proxy server that unifies 100+ LLM APIs behind a single OpenAI-compatible interface, with load balancing, cost tracking, and configurable failover.

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Portkey

Portkey AI

GatewayOpen sourceHosted SaaSReliabilityCost

~1.6K models · Subscription

Production AI gateway routing to 1,600+ LLMs with failover, load balancing, semantic caching, and guardrails; Apache 2.0 core is fully self-hostable with the complete feature set.

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Popular router comparisons

Curated router-vs-router pairs for common gateway, self-hosted, provider-native, and cost-routing decisions.

OpenRouter vs Requesty