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Incident detail

Elevated errors across many models

Resolved incidentMinor3 affected services

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Timeline

Incident updates

Every update on the official status source, oldest to newest, exactly as it appeared there.

  1. Investigating

    We are currently investigating this issue.

  2. Monitoring

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

  3. Identified

    We are still seeing errors on Opus 4.8 and Haiku 4.5.

  4. Identified

    We are continuing to work to resolve an elevated rate of errors on requests to Claude Opus 4.8, and will provide an additional update as soon as possible.

  5. Identified

    We are continuing to work on a fix for this issue.

  6. Monitoring

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

  7. Resolved

    The incident has now been resolved. We had two phases:

    • between 10:23 PT / 17:23 UTC to 11:00 PT / 18:00 UTC -- all Sonnet and Opus models were affected, reaching an error rate of around 10%
    • after 11:00 PT / 18:00 UTC and until 12:20 PT / 19:20 UTC -- Opus 4.8 had an average error rate of 10%

    The incident is now resolved.

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Elevated errors on Claude Opus 4.8

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Opus 4.8 errors

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