Downrightnow
// Incident Post-MortemDRN-0F13418F

OpenAI Platform outage on May 15, 2026

Minor severityResolved4h 55mAI
Started · UTC
May 15, 04:11 PM
8d ago
Resolved · UTC
May 15, 09:05 PM
7d ago
Duration
4h 55m
End-to-end
Peak confidence
45.00
60 snapshots
// User impact

OpenAI Platform users likely saw failed connections, degraded availability, or session instability for this AI service. The incident reached Minor severity and lasted 4h 55m. The stored report window does not show a preserved user-report spike.

// What happened

OpenAI's official status page is reporting "Minor, Partial System Degradation". Current signals suggest performance may be degraded, though user reports are quiet. The affected scope and cause are unclear at this time.

Cached · Fri, May 22, 2026, 04:39 PM UTC · scope: service signals

// Timeline

  1. Status changed to Operational

    The stored readout moved to Operational with confidence 55.00.

  2. Incident detected

    Minor confidence crossed the incident threshold for OpenAI Platform: gPT5.5 Performance Degradation.

  3. Marked resolved

    The incident was closed after 4h 55m of observed impact.

  4. Peak confidence reached

    Confidence peaked at 55.00 while the service was marked Operational.

// Signals by source0 sources

No per-source signal payloads were preserved in this incident's snapshot window.

// Aggregate evidence

Confidence scoring

45.00

The incident reached 45.00 peak confidence across 60 stored status snapshots.

User reports

0 / 15m

No elevated user-report volume was preserved in the incident window snapshots.

Status samples

0 affected

The incident row exists, but the bounded snapshot window does not include affected status samples.

Recovery signal

Resolved

Recovery was recorded at Fri, May 15, 2026, 09:05 PM UTC.