Elevated Error Rates for Opus 4.8, Opus 4.7, Opus 4.6, Sonnet 4.6, and Haiku 4.5

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 1h 30m it lasted.

  Anything that failed between 2026-06-22 00:37 UTC and 2026-06-22 02:06 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.

Updates from Anthropic 8

1. investigatingJun 22, 2026, 12:37 AM UTC

   We are currently investigating this issue.

   provider

2. investigatingJun 22, 2026, 12:37 AM UTC

   We are continuing to investigate this issue.

   provider

3. identifiedJun 22, 2026, 1:11 AM UTC

   The issue has been identified and a fix is being implemented.

   provider

4. identifiedJun 22, 2026, 1:16 AM UTC

   Opus 4.8 has recovered.

   provider

5. identifiedJun 22, 2026, 1:33 AM UTC

   Haiku 4.5 has recovered

   provider

6. identifiedJun 22, 2026, 1:56 AM UTC

   Opus 4.7 has recovered

   provider

7. monitoringJun 22, 2026, 2:01 AM UTC

   A fix has been implemented and we are monitoring the results.

   provider

8. resolvedJun 22, 2026, 2:06 AM UTC

   This incident has been resolved.

   provider

Corrections

None so far.

Something wrong on this page? Report an error or send us a note. Every fix is listed here.