Elevated errors for multiple models

Timeline

1. 03 Sep · 16:23 UTC 🟡 Resolved atom

   Sep 3, 16:23 UTC
   Resolved - The issue affecting Claude Mythos 5.1, Claude Fable 5.1, and Claude Opus 5 has been resolved. Impact has ended as of 9:16 PT / 16:16 UTC.
   
   Sep 3, 16:06 UTC
   Monitoring - A fix has been deployed for Claude Mythos 5.1, Claude Fable 5.1, and Claude Opus 5 and we are monitoring for recovery.
   
   Sep 3, 15:25 UTC
   Update - The only affected models right now are Opus 4.8 and Opus 5. The rest of the models have recovered to baseline error rate.
   
   Sep 3, 14:49 UTC
   Update - We are continuing to work on a fix for this issue.
   
   Sep 3, 13:50 UTC
   Update - An exhaustive list of affected models: Mythos/Fable 5.1, Mythos/Fable 5, Opus 5, Opus 4.8, Opus 4.6.
   
   Sep 3, 13:41 UTC
   Identified - We have identified the cause of elevated errors on requests to Claude Mythos 5.1, Claude Fable 5.1, and Claude Opus 5 and are working on a fix. We will provide an update as soon as possible.
   
   Sep 3, 13:26 UTC
   Investigating - We are investigating elevated errors on requests to Claude Mythos 5.1, Claude Fable 5.1, and Claude Opus 5. We will provide an update as soon as possible.

2. 03 Sep · 16:06 UTC 🟡 Monitoring atom

   Sep 3, 16:06 UTC
   Monitoring - A fix has been deployed for Claude Mythos 5.1, Claude Fable 5.1, and Claude Opus 5 and we are monitoring for recovery.
   
   Sep 3, 15:25 UTC
   Update - The only affected models right now are Opus 4.8 and Opus 5. The rest of the models have recovered to baseline error rate.
   
   Sep 3, 14:49 UTC
   Update - We are continuing to work on a fix for this issue.
   
   Sep 3, 13:50 UTC
   Update - An exhaustive list of affected models: Mythos/Fable 5.1, Mythos/Fable 5, Opus 5, Opus 4.8, Opus 4.6.
   
   Sep 3, 13:41 UTC
   Identified - We have identified the cause of elevated errors on requests to Claude Mythos 5.1, Claude Fable 5.1, and Claude Opus 5 and are working on a fix. We will provide an update as soon as possible.
   
   Sep 3, 13:26 UTC
   Investigating - We are investigating elevated errors on requests to Claude Mythos 5.1, Claude Fable 5.1, and Claude Opus 5. We will provide an update as soon as possible.

3. 03 Sep · 15:25 UTC 🟡 Identified atom

   Sep 3, 15:25 UTC
   Update - The only affected models right now are Opus 4.8 and Opus 5. The rest of the models have recovered to baseline error rate.
   
   Sep 3, 14:49 UTC
   Update - We are continuing to work on a fix for this issue.
   
   Sep 3, 13:50 UTC
   Update - An exhaustive list of affected models: Mythos/Fable 5.1, Mythos/Fable 5, Opus 5, Opus 4.8, Opus 4.6.
   
   Sep 3, 13:41 UTC
   Identified - We have identified the cause of elevated errors on requests to Claude Mythos 5.1, Claude Fable 5.1, and Claude Opus 5 and are working on a fix. We will provide an update as soon as possible.
   
   Sep 3, 13:26 UTC
   Investigating - We are investigating elevated errors on requests to Claude Mythos 5.1, Claude Fable 5.1, and Claude Opus 5. We will provide an update as soon as possible.

4. 03 Sep · 14:49 UTC 🟡 Identified atom

   Sep 3, 14:49 UTC
   Update - We are continuing to work on a fix for this issue.
   
   Sep 3, 13:50 UTC
   Update - An exhaustive list of affected models: Mythos/Fable 5.1, Mythos/Fable 5, Opus 5, Opus 4.8, Opus 4.6.
   
   Sep 3, 13:41 UTC
   Identified - We have identified the cause of elevated errors on requests to Claude Mythos 5.1, Claude Fable 5.1, and Claude Opus 5 and are working on a fix. We will provide an update as soon as possible.
   
   Sep 3, 13:26 UTC
   Investigating - We are investigating elevated errors on requests to Claude Mythos 5.1, Claude Fable 5.1, and Claude Opus 5. We will provide an update as soon as possible.

5. 03 Sep · 13:50 UTC 🟡 Identified atom

   Sep 3, 13:50 UTC
   Update - An exhaustive list of affected models: Mythos/Fable 5.1, Mythos/Fable 5, Opus 5, Opus 4.8, Opus 4.6.
   
   Sep 3, 13:41 UTC
   Identified - We have identified the cause of elevated errors on requests to Claude Mythos 5.1, Claude Fable 5.1, and Claude Opus 5 and are working on a fix. We will provide an update as soon as possible.
   
   Sep 3, 13:26 UTC
   Investigating - We are investigating elevated errors on requests to Claude Mythos 5.1, Claude Fable 5.1, and Claude Opus 5. We will provide an update as soon as possible.

6. 03 Sep · 13:41 UTC 🟡 Identified atom

   Sep 3, 13:41 UTC
   Identified - We have identified the cause of elevated errors on requests to Claude Mythos 5.1, Claude Fable 5.1, and Claude Opus 5 and are working on a fix. We will provide an update as soon as possible.
   
   Sep 3, 13:26 UTC
   Investigating - We are investigating elevated errors on requests to Claude Mythos 5.1, Claude Fable 5.1, and Claude Opus 5. We will provide an update as soon as possible.

7. 03 Sep · 13:26 UTC 🟡 Investigating atom

   Sep 3, 13:26 UTC
   Investigating - We are investigating elevated errors on requests to Claude Mythos 5.1, Claude Fable 5.1, and Claude Opus 5. We will provide an update as soon as possible.