Daily endpoint behavior monitor

Did Codex behave differently today?

Thirty days of fixed, short probes through one Codex subscription path. The charts show observed endpoint behavior, not model identity or general capability.

Thirty-day behavior trend

Each bar is one day's answer distribution. Select a day to inspect its recorded counts.

Selected day

Choose a day from any chart.

Interpretation boundary. A visible shift means this fixed probe moved relative to its own observed history. It cannot establish why the endpoint changed, identify a model, or measure task capability.