OpenRouter
Gemini AI Gateway Benchmark

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Request Latency

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Cold E2E
1675ms
Median
Warm TTFT
1632ms
Median
Tokens/sec
117
Median
DNS
2.8ms
Median
TCP
1.1ms
Median
TLS
4.4ms
Median

Cold Connection Breakdown

Where a fresh request's time goes: DNS lookup, TCP connect, TLS handshake, then time to first response byte, then first byte to first streamed token.

DNS2.8ms
TCP1.1ms
TLS4.4ms
To First Byte1470.4ms
First Byte → Token187.8ms

Performance Over Time

Iteration Distribution

Cold E2E

Warm TTFT

Tokens/sec

DNS

TCP

TLS

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