Elevated errors for Claude Fable 5 and Claude Fable 5.1

What to do

• Check whether you use Anthropic claude.ai, Claude API (api.anthropic.com), Claude Code, Claude Cowork. Check your stack

  Paste a package.json, lockfile, Terraform or a list of domains at down.guide/stack to see every provider you depend on.

• Confirm your retries, queues and scheduled jobs caught up after the 37m it lasted.

  Anything that failed between 2026-10-24 05:16 UTC and 2026-10-24 05:53 UTC may need a replay.

• Subscribe to Anthropic's feed to hear about the next one first. RSS feed

  https://down.guide/feed?provider=anthropic works in Slack (/feed subscribe), Discord feed bots and any RSS reader.

Root cause

We have identified the cause of elevated errors on requests to other Claude models and are working on a fix.

Updates from Anthropic 5

1. investigatingOct 24, 2026, 5:16 AM UTC

   We are investigating elevated errors on requests to other Claude models. We will provide an update as soon as possible.

   provider

2. identifiedOct 24, 2026, 5:24 AM UTC

   We have identified the cause of elevated errors on requests to other Claude models and are working on a fix. We will provide an update as soon as possible.

   provider

3. identifiedOct 24, 2026, 5:40 AM UTC

   We have identified the cause of elevated errors on requests to other Claude models and are working on a fix. We will provide an update as soon as possible.

   provider

4. monitoringOct 24, 2026, 5:41 AM UTC

   A fix has been deployed for the issue affecting Claude services and we are monitoring for recovery.

   provider

5. resolvedOct 24, 2026, 5:53 AM UTC

   The issue affecting Claude services has been resolved. Impact occurred from 22:00 PT on October 23 / 05:00 UTC on October 24 to 22:35 PT on October 23 / 05:35 UTC on October 24.

   provider

Corrections

None so far.

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