OpenRouter
Gemini AI Gateway Benchmark

Request Latency

100% success
Cold E2E
1788ms
Median
Warm TTFT
1810ms
Median
Tokens/sec
108
Median
DNS
3.9ms
Median
TCP
1.2ms
Median
TLS
4.6ms
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.

DNS3.9ms
TCP1.2ms
TLS4.6ms
To First Byte1603.1ms
First Byte → Token163.3ms

Performance Over Time

Iteration Distribution

Cold E2E

Warm TTFT

Tokens/sec

DNS

TCP

TLS

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