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Glossy circuit board with a glowing stopwatch on the central chip and light traces racing toward it, representing an AI gateway latency benchmark

OpenRouter vs Vercel vs LLMGateway Performance

We measured AI gateway performance with an open-source TTFT benchmark: 75 cold + 75 warm interleaved runs of claude-haiku-4.5 against LLM Gateway and OpenRouter, with phase-by-phase timings and raw data published. LLM Gateway reached first token ~35% faster cold and ~34% faster warm, and here is exactly how to reproduce the numbers.

July 22, 2026