Downrightnow
// Incident Post-MortemDRN-000AA4D0

Anthropic outage on May 12, 2026

Minor severityResolved19 minAI Tools
Started · UTC
May 12, 11:38 PM
10d ago
Resolved · UTC
May 12, 11:58 PM
10d ago
Duration
19 min
End-to-end
Peak confidence
45.00
13 snapshots
// User impact

Anthropic users likely saw failed connections, degraded availability, or session instability for this AI Tools service. The incident reached Minor severity and lasted 19 min. The stored report window does not show a preserved user-report spike.

// What happened

Anthropic appears to be operating normally based on current signals. DNS is no recent DNS check, user reports are quiet.

Cached · Fri, May 22, 2026, 11:06 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 Anthropic: elevated errors on Claude Opus 4.7.

  3. Marked resolved

    The incident was closed after 19 min 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 13 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 Tue, May 12, 2026, 11:58 PM UTC.