major impact Anthropic โœ“ Resolved

Sonnet 4.6 elevated rate of errors

Started
2026-04-08 06:23 UTC
Resolved
2026-04-08 09:33 UTC
Duration
190 minutes
Date
2026-04-08

Incident Timeline

investigating 2026-04-08 06:23 UTC

We are currently investigating this issue.

investigating 2026-04-08 06:23 UTC

We are currently investigating this issue.

investigating 2026-04-08 06:23 UTC

We are currently investigating this issue.

investigating 2026-04-08 06:23 UTC

We are currently investigating this issue.

investigating 2026-04-08 06:23 UTC

We are currently investigating this issue.

investigating 2026-04-08 06:23 UTC

We are currently investigating this issue.

investigating 2026-04-08 06:23 UTC

We are currently investigating this issue.

investigating 2026-04-08 06:23 UTC

We are currently investigating this issue.

investigating 2026-04-08 06:23 UTC

We are currently investigating this issue.

investigating 2026-04-08 06:23 UTC

We are currently investigating this issue.

investigating 2026-04-08 07:06 UTC

We are continuing to investigate this issue.

investigating 2026-04-08 07:06 UTC

We are continuing to investigate this issue.

investigating 2026-04-08 07:06 UTC

We are continuing to investigate this issue.

investigating 2026-04-08 07:06 UTC

We are continuing to investigate this issue.

investigating 2026-04-08 07:06 UTC

We are continuing to investigate this issue.

investigating 2026-04-08 07:06 UTC

We are continuing to investigate this issue.

investigating 2026-04-08 07:06 UTC

We are continuing to investigate this issue.

investigating 2026-04-08 07:06 UTC

We are continuing to investigate this issue.

investigating 2026-04-08 07:06 UTC

We are continuing to investigate this issue.

investigating 2026-04-08 07:06 UTC

We are continuing to investigate this issue.

identified 2026-04-08 07:59 UTC

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

identified 2026-04-08 07:59 UTC

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

identified 2026-04-08 07:59 UTC

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

identified 2026-04-08 07:59 UTC

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

identified 2026-04-08 07:59 UTC

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

identified 2026-04-08 07:59 UTC

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

identified 2026-04-08 07:59 UTC

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

identified 2026-04-08 07:59 UTC

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

identified 2026-04-08 07:59 UTC

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

identified 2026-04-08 07:59 UTC

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

monitoring 2026-04-08 09:01 UTC

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

monitoring 2026-04-08 09:01 UTC

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

monitoring 2026-04-08 09:01 UTC

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

monitoring 2026-04-08 09:01 UTC

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

monitoring 2026-04-08 09:01 UTC

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

monitoring 2026-04-08 09:01 UTC

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

monitoring 2026-04-08 09:01 UTC

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

monitoring 2026-04-08 09:01 UTC

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

monitoring 2026-04-08 09:01 UTC

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

monitoring 2026-04-08 09:01 UTC

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

resolved 2026-04-08 09:33 UTC

The incident is now resolved. Sonnet 4.6 exhibited errors above baseline between 23:00 PT / 7:00 UTC and 1:50 PT / 9:50 UTC.

resolved 2026-04-08 09:33 UTC

The incident is now resolved. Sonnet 4.6 exhibited errors above baseline between 23:00 PT / 7:00 UTC and 1:50 PT / 9:50 UTC.

resolved 2026-04-08 09:33 UTC

The incident is now resolved. Sonnet 4.6 exhibited errors above baseline between 23:00 PT / 7:00 UTC and 1:50 PT / 9:50 UTC.

resolved 2026-04-08 09:33 UTC

The incident is now resolved. Sonnet 4.6 exhibited errors above baseline between 23:00 PT / 7:00 UTC and 1:50 PT / 9:50 UTC.

resolved 2026-04-08 09:33 UTC

The incident is now resolved. Sonnet 4.6 exhibited errors above baseline between 23:00 PT / 7:00 UTC and 1:50 PT / 9:50 UTC.

resolved 2026-04-08 09:33 UTC

The incident is now resolved. Sonnet 4.6 exhibited errors above baseline between 23:00 PT / 7:00 UTC and 1:50 PT / 9:50 UTC.

resolved 2026-04-08 09:33 UTC

The incident is now resolved. Sonnet 4.6 exhibited errors above baseline between 23:00 PT / 7:00 UTC and 1:50 PT / 9:50 UTC.

resolved 2026-04-08 09:33 UTC

The incident is now resolved. Sonnet 4.6 exhibited errors above baseline between 23:00 PT / 7:00 UTC and 1:50 PT / 9:50 UTC.

resolved 2026-04-08 09:33 UTC

The incident is now resolved. Sonnet 4.6 exhibited errors above baseline between 23:00 PT / 7:00 UTC and 1:50 PT / 9:50 UTC.

resolved 2026-04-08 09:33 UTC

The incident is now resolved. Sonnet 4.6 exhibited errors above baseline between 23:00 PT / 7:00 UTC and 1:50 PT / 9:50 UTC.

โ† All Anthropic incidents Other incidents on 2026-04-08