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. 560 data points loaded.

Regional measurements

Africa

RegionResponse timeStatusAlerts
Cape Town 1.2s Healthy

Asia Pacific

RegionResponse timeStatusAlerts
Hong Kong-Failed
Jakarta 1.9s Healthy
Mumbai 1.3s Healthy
Osaka 1.5s Degraded
Seoul 1.0s Healthy
Singapore 1.4s Healthy
Sydney 956ms Healthy
Tokyo 1.3s Healthy

Europe

RegionResponse timeStatusAlerts
Dublin 909ms Healthy
Frankfurt 1.0s Healthy
London 1.0s Healthy
Milan 1.4s Degraded
Paris 923ms Healthy
Stockholm 972ms Healthy

Middle East

RegionResponse timeStatusAlerts
Bahrain-Failed

North America

RegionResponse timeStatusAlerts
Montreal 895ms Healthy
N. California 2.3s Healthy
N. Virginia 910ms Healthy
Ohio 960ms Healthy
Oregon 1.0s Healthy

South America

RegionResponse timeStatusAlerts
São Paulo 979ms Healthy