LLMgateway OpenAI AI Gateway Benchmarks
OpenAI AI Gateway Benchmarks
Last benchmarked August 21, 2026
Request Latency
Cold E2E
1027ms
Median
Warm TTFT
996ms
Median
Tokens/sec
57
Median
DNS
0.7ms
Median
TCP
1.5ms
Median
TLS
5.1ms
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.
DNS0.7ms
TCP1.5ms
TLS5.1ms
To First Byte112.0ms
First Byte → Token898.4ms
Performance Over Time
Iteration Distribution
Cold E2E
Warm TTFT
Tokens/sec
DNS
TCP
TLS
Partners