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Elevated errors on claude.ai, Claude Code, Claude Cowork and the Claude API

Posted 29 Sep 14:21 UTC, last seen today 13:18 UTC.

Unknown Duration: the provider stated no start
8Updates posted
3Other incidents at the same time

What it affected

As the provider names it

claude.aiClaude Console (platform.claude.com)Claude API (api.anthropic.com)Claude CodeClaude Cowork

What the provider posted

Newest first
  1. 29 Sep 16:27 UTCResolvedThe issue affecting Claude.ai, the Claude desktop and mobile apps, Claude Code, Claude Cowork, and the Claude API has been resolved, and services have been operating normally since recovery. Impact occurred from 07:00 PT / 14:00 UTC to 07:59 PT / 14:59 UTC.
  2. 29 Sep 15:30 UTCUpdateAll services have been operating normally since 14:59 UTC. We are continuing to monitor.
  3. 29 Sep 15:11 UTCMonitoringMost services have recovered as of 14:59 UTC. Signing in, starting new chats, voice conversations, Claude Code and Cowork sessions, purchases and file uploads are working again. Some messages sent between 14:00 and 14:59 UTC may not have been saved. We are monitoring closely and will post another update within 30 minutes.
  4. 29 Sep 15:00 UTCUpdateThe errors that began at 14:00 UTC were mitigated at 14:36 UTC, and existing conversations are mostly working again. A second issue is preventing many users from signing in (single sign-on and Sign in with Apple are unavailable), starting new chats, voice conversations and Claude Code or Cowork sessions, making purchases, and uploading files. If you're signed in, please don't sign out. We're working on a fix and will post another update within 30 minutes.
  5. 29 Sep 14:41 UTCUpdateWe have applied a mitigation and error rates have dropped substantially. Some sign-in attempts, account actions and Claude Code and Cowork sessions are still failing. We are continuing to work on a full fix.
  6. 29 Sep 14:30 UTCUpdateWe are investigating reports of degraded performance affecting claude.ai, platform.claude.com, the Claude API, Claude Code, and Claude Cowork. We will provide an update as soon as possible.
  7. 29 Sep 14:28 UTCUpdateWe are investigating elevated error rates affecting Claude.ai (including the desktop and mobile apps), Claude Code and Claude Cowork. Some requests to the Claude API are also returning errors. We will provide an update as soon as possible.
  8. 29 Sep 14:21 UTCInvestigatingWe are investigating elevated error rates affecting Claude.ai (including the desktop and mobile apps), Claude Code and Claude Cowork. Users may see failed requests, errors loading or sending conversations, or be asked to sign in again; retrying may succeed. We will provide an update as soon as possible.

Around it

From the sources ChangeIntel reads; a match in time is not a cause

What changed

First observed 14 Oct 2026

No field changes in the recorded history.

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Sources read 14 Oct 12:55 UTC · 254 of 255 readable · 253 fully read · documentation 0/409 current