The Best LLM Gateways in 2026, Sorted by the Job You Need Done
Eight LLM gateways compared by what they are actually for: routing and failover, model aggregation, platform-native gateways, and cost attribution. LiteLLM, Portkey, OpenRouter, Vercel AI Gateway, Cloudflare AI Gateway, Kong, Helicone and AI SpendOps, with the trade-offs stated plainly.