OpenAI Responses: GPT-5.3 Codex

Service quality measured from 22 regions around the world

Standard: The chat completions API sends the full prompt and waits for the complete reply in one response, the usual non-streaming chat completions call.

Average response time

1.2s

Compare regions

Line chart showing response time over 30 days for 2 regions. 402 data points loaded.

Regional measurements

Africa

RegionResponse timeStatusAlerts
Cape Town 1.5s Healthy

Asia Pacific

RegionResponse timeStatusAlerts
Hong Kong-Failed
Jakarta 2.0s Degraded
Mumbai 1.3s Healthy
Osaka 1.4s Degraded
Seoul 1.1s Healthy
Singapore 1.0s Healthy
Sydney 1.3s Healthy
Tokyo 948ms Healthy

Europe

RegionResponse timeStatusAlerts
Dublin 1.2s Healthy
Frankfurt 755ms Healthy
London 4.6s Degraded
Milan 953ms Healthy
Paris 866ms Healthy
Stockholm 1.2s Healthy

Middle East

RegionResponse timeStatusAlerts
Bahrain-Failed

North America

RegionResponse timeStatusAlerts
Montreal 913ms Healthy
N. California 1.2s Healthy
N. Virginia 1.0s Healthy
Ohio 728ms Healthy
Oregon 1.6s Degraded

South America

RegionResponse timeStatusAlerts
São Paulo 1.5s Healthy