Breaking

Claude Recovers From Roughly 45-Minute Outage, One of Several in June

June 19, 2026 at 00:51 EDT

Foundation Models
Infra & Chips

Anthropic said on June 18, 2026 that it had resolved a service disruption affecting Claude between 06:55 and 07:40 UTC. For about 45 minutes, elevated error rates were reported across claude.ai, the API, Claude Code and other services.

June 18, 2026 · Anthropic

Claude Goes Dark Again — A 45-Minute Outage in a Month of Strain

Anthropic identified and resolved an outage on its Claude AI assistant that left users facing blank responses, failed prompts, and connection errors. The disruption ran 06:55–07:40 UTC — reportedly the tenth such incident since June 5.

~45 min

Duration of the outage
(06:55–07:40 UTC)

2,174

Peak user reports logged at the height of the incident

10th

Disruption since June 5, per some accounts

90-Day Uptime — The Gap From "Always On"

Stacked blocks show measured uptime against the 100% ideal.

98.96%

claude.ai

99.31%

Claude API

100%

Ideal

Why It Keeps Breaking — Demand Outrunning Capacity

Surging demand for AI services

→

Infrastructure strained

→

Overload errors & outages

→

Capacity expansion lags

Anthropic is expanding capacity via cloud partnerships, but immediate responses to spiking load are lagging.

RECOVERY PRAISED

Some users credited the relatively quick restoration — services were fully back by 1:48 PM IST.

RELIABILITY DOUBTS

Repeated "API Error: 529 Overloaded" interruptions pushed developers toward fallbacks and exponential-backoff retries.

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