GPT
GPT models on real traffic: success rate, blended price and time to first token.
7 models · 72 requests measured
Reliability
100%
GPT-5.5
Value
$0.20blended / 1M
GPT 6 luna
Speed
1.58 slatency
GPT-5.4
Requests · 14d
| Model | Requests ↓ | Success rate | First tokenMedian, streamed | Output speedMedian while generating | Latencyp50 / p95, full request | Price / 1M tokensInput / output |
|---|---|---|---|---|---|---|
| GPT-5.5 | 16 | 100% | — | — | 4.52 s / 7.96 s | $5 / $30 |
How we measure
Speed and latency use successful requests only. Success rate leaves out client errors such as invalid requests, auth, balance and rate limits. A metric shows once it has at least 5 samples. Blended price weights input 3:1 over output. First token and output speed are recorded from October 31, 2026.