What was measured
The i6eal AI Latency Index measures time to first content token (TTFT) from a Lambda function in Frankfurt. Two completed UTC weeks are compared: 28 September to 4 October 2026 and 5 to 11 October 2026. A change is observed for two endpoints: GPT-5 mini (OpenAI) and Claude Haiku 4.5 (Anthropic), each via the gateway route. Both endpoints have a paired value on all seven weekdays.
How to read the numbers
The changes always refer only to the same endpoint against its own prior week. They do not allow a comparison between the two models, nor between the direct route and the gateway route. The index also assesses only a short synthetic request, not a complete workflow.
What the measurement does not show
The observed differences establish neither a cause nor statistical significance. The measurement says nothing about model quality, availability or reliability. If you are planning latency for a specific application, it is worth testing with your own prompts and your own time window.
Observed latency changes
| Endpoint | Route | Paired days per week | Before TTFT (ms) | Current TTFT (ms) | Change |
|---|---|---|---|---|---|
| GPT-5 mini (OpenAI) | gateway | 7 | 743.00 | 658.00 | -11.44 % |
| Claude Haiku 4.5 (Anthropic) | gateway | 7 | 776.00 | 693.00 | -10.70 % |
2026-09-28–2026-10-04 → 2026-10-05–2026-10-11 (UTC).
Coverage and measurement limits
7 endpoints have sufficient paired days and unchanged model/route descriptions. 0 endpoints have insufficient paired days; 0 were excluded because model/route descriptions changed.
TTFT measures time to the first content token from a Lambda in Frankfurt. This compares medians of daily measurements in two completed UTC weeks. Only weekdays with a value in both weeks count; each endpoint needs at least five paired days. The collector discards a warm-up and keeps the faster of two successful probes per measurement round. This is a short synthetic probe, not a measurement of your entire workload. Direct and gateway routes are not ranked against each other. Observed differences establish no cause, statistical significance, model quality or reliability.
i6eal KI-Latenz-Index. Source timestamp: 2026-10-12T01:20:59.125Z.
Sources
Editorially owned by Ideal Syka. Sources and method: Newsroom & method. Tips and corrections: ai@i6eal.de.
