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AnthropicIncident · 2026-08-28 17:22 UTC

Elevated errors on Claude Code and Claude Cowork

ResolvedOfficial update

The issue affecting Claude Cowork and Claude Code on the web has been resolved.

The latest update from Anthropic.

State

Resolved

Started

65 d ago

2026-08-28 17:22 UTC

Lasted

2 h 59 min

until 2026-08-28 20:21 UTC

Worst impact

Partial outage

Timeline

3 updates
17:2218:0618:5119:3620:21
Partial outageUpdate postedTimes in UTC

Identified

59 min 33%

Monitoring

2 h 67%

Updates

Times in UTC

As posted by Anthropic

Resolved2026-08-28 20:21 UTC

The issue affecting Claude Cowork and Claude Code on the web has been resolved.

Monitoring2026-08-28 18:21 UTC

A mitigation has been applied for the issue affecting Claude Cowork and Claude Code on the web, and we are monitoring for recovery. Sessions that disconnected earlier can be retried

Identified2026-08-28 17:22 UTC

We have identified an issue with an upstream cloud provider affecting Claude Cowork and Claude Code on the web. Some sessions may fail to start or disconnect mid-task; affected sessions can be retried. We are in contact with the provider and will provide an update as soon as possible.

Affected components

2
Claude CodeClaude Cowork

Anthropic in the last 90 days

Full history
90 days agoToday

Incidents in 90 days

50

Days with an incident

42

Median duration

1 h 8 min

This incident

2.7× the median

How long each incident lasted, on the day it started. The outlined bar is this incident.

6 days
median 1 h 8 min
90 days agoToday

Other Anthropic incidents

All incidents

Anthropic·Elevated errors affecting the Google Calendar connector

The issue affecting the Google Calendar connector on claude.ai, Claude Code, and Claude Cowork has been resolved. Impact occurred from 04:07 PT / 11:07 UTC on October 26 to 11:52 PT / 18:52 UTC on October 28.

Resolvedresolved 4 d ago

Anthropic·Elevated errors affecting the Gmail connector

The issue affecting the Gmail connector on claude.ai, Claude Code, and Claude Cowork has been resolved. Impact occurred from 16:00 PT / 23:00 UTC on October 27 to 22:29 PT on October 27 / 05:29 UTC on October 28.

Resolvedresolved 4 d ago

Anthropic·Elevated errors for Claude Sonnet 5.5

The issue affecting claude.ai, the Claude API, Claude Code, and Claude Cowork has been resolved. Impact occurred from 07:42 PT / 14:42 UTC to 08:17 PT / 15:17 UTC.

Resolvedresolved 5 d ago

Anthropic·Elevated errors for Claude Sonnet 5.5

The issue affecting Claude services has been resolved.

Resolvedresolved 5 d ago

Anthropic·Elevated errors for Claude Fable 5.1

The issue affecting Claude services has been resolved. Impact occurred from 01:08 PT / 08:08 UTC to 01:29 PT / 08:29 UTC.

Resolvedresolved 7 d ago

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Prompt
Install the outages.live MCP server, so that when something breaks you can tell if the cause is a provider we depend on and not my code. It reads the official status pages of cloud, AI, payment and developer providers and gives you their incidents as MCP tools.

Add it as a remote MCP server named "outages" at https://outages.cc/mcp (Streamable HTTP, no authentication), with your CLI command or your MCP config file.

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