Anthropic outage — July 19, 2026

Elevated errors for Claude Opus 4.1

Anthropic’s Multiple services was disrupted for 2d 13h on July 19, 2026. 503Radar’s sensors raised the first signal at 19:38 UTC, 11h 29m before the official status page acknowledged impact.

Key facts

Timeline

1. 19:38Z

   Detected · Signal

   15 crowd signals for Multiple services on ANTHROPIC crossed the signal threshold.
2. 07:08Z

   Confirmed · Official

   An official ANTHROPIC status-page notice corroborated the event — 11h 29m after detection.
3. 09:09Z

   Resolved

   Signal volume fell back below the threshold; the event was closed.

What people reported

“Many people wonder why I’m so damn obsessed with Eurovision, but to break it down easily, it gives me SO much motivation and reminds me of how much someone can ”bluesky_jetstream · 21:13 UTC

“They chose to make their first words Sonnet 3's. Titled "STILL HERE". The Sonnets being taken down from Bedrock is horrible news. After Anthropic retired these ”bluesky_jetstream · 22:41 UTC

“In test, Anthropic agent continued blowing the whistle on safety issues, even after it was told Dario Amodei ordered it to stand down.”bluesky_jetstream · 22:56 UTC

“Container crashes are easy to miss until they've already been failing for hours. Here, Balajee shows you how to build an AI agent that monitors Docker container”bluesky_jetstream · 00:01 UTC

“Share your OC boundaries Fanart? -Of Course! Shipping? -Sorry no. Fanfiction? -Depends on context, talk with me! Draw your OC with yours? -Sure! NSFW? -Che”@harikbelgrisch.bsky.social · 01:07 UTC

“Spent the day at work calling Claude a fucking idiot no less than 5 times while hunting down a file descriptor leak. #feelsgoodman”bluesky_jetstream · 02:34 UTC

How this was detected

1 independent evidence class for Multiple services on ANTHROPIC. 15 crowd reports across bluesky, hn_comments (below the anomaly threshold), z=+0.3σ vs the cell baseline. Official notice confirms it, 11h 29m after the crowd.