OpenRouter was faster in 3 of 4 shared AI gateway benchmarks and Concentrate AI in 1.
Median of each benchmark's primary metric; lower is better. Medians within 5% count as roughly even, and a benchmark gets no speed verdict when either provider completed fewer than 50% of runs.
| Benchmark | Concentrate AI | OpenRouter | Result | Ratio |
|---|---|---|---|---|
| Anthropic Cold end-to-end latency · Run October 30, 2026 | 608ms 100% success | 469ms 100% success | OpenRouter faster | 1.30x |
| OpenAI Cold end-to-end latency · Run October 30, 2026 | 990ms 100% success | 698ms 100% success | OpenRouter faster | 1.42x |
| Gemini Cold end-to-end latency · Run October 30, 2026 | 1803ms 100% success | 1897ms 100% success | Concentrate AI faster | 1.05x |
| Kimi Cold end-to-end latency · Run October 30, 2026 | 2167ms 100% success | 1894ms 100% success | OpenRouter faster | 1.14x |
Time for a cold request routed through the gateway to Claude Haiku 4.5 to return its complete response.
Cold end-to-end latency
OpenRouter had a 1.30x lower median cold end-to-end latency (469ms vs 608ms for Concentrate AI).
14 runs from July 31, 2026 to October 30, 2026.
Time for a cold request routed through the gateway to GPT-5.4 Mini to return its complete response.
Cold end-to-end latency
OpenRouter had a 1.42x lower median cold end-to-end latency (698ms vs 990ms for Concentrate AI).
11 runs from August 21, 2026 to October 30, 2026.
Time for a cold request routed through the gateway to Gemini 3.6 Flash to return its complete response.
Cold end-to-end latency
Concentrate AI had a 1.05x lower median cold end-to-end latency (1803ms vs 1897ms for OpenRouter).
11 runs from August 21, 2026 to October 30, 2026.
Time for a cold request routed through the gateway to Kimi K3 to return its complete response.
Cold end-to-end latency
OpenRouter had a 1.14x lower median cold end-to-end latency (1894ms vs 2167ms for Concentrate AI).
11 runs from August 21, 2026 to October 30, 2026.
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OpenRouter was faster in 3 of 4 shared AI gateway benchmarks and Concentrate AI in 1. In Anthropic (October 30, 2026), OpenRouter had a median cold end-to-end latency of 469ms versus 608ms for Concentrate AI, 1.30x faster. In OpenAI (October 30, 2026), OpenRouter had a median cold end-to-end latency of 698ms versus 990ms for Concentrate AI, 1.42x faster. In Gemini (October 30, 2026), Concentrate AI had a median cold end-to-end latency of 1803ms versus 1897ms for OpenRouter, 1.05x faster. In Kimi (October 30, 2026), OpenRouter had a median cold end-to-end latency of 1894ms versus 2167ms for Concentrate AI, 1.14x faster.