Top Model Routing Tools in 2026: LLM Routers Compared

LLM routing tools decouple provider selection from application code, directing requests based on cost, latency, and complexity. Bifrost leads production tools, offering 11 microseconds of overhead at 5,000 requests per second using CEL routing and automated fallback chains. Other 2026 solutions include LiteLLM for Python protocol translation, OpenRouter for hosted access, Kong AI Gateway for API meshes, and RouteLLM for cost-quality optimization. These tools ensure high availability and infrastructure efficiency across multiple Large Language Model providers.