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Cohere ยท AIOct 18, 2025, 21:46 UTC

Chat models return 503 service error when /v1/chat requests omit message and chat_history while providing tool_results

InformationalNot disclosedUpdated 17h ago
Oct 18, 21:46 UTCOct 18, 22:23 UTC
Duration
37m
Impact
Informational
Root cause
Not disclosed
Cohere, 90 days
3 incidents
Affected
Not listed by the vendor.
Status page

Final update

๐ŸŽ‰ The issue has been resolved and we are back to normal.

Timeline

  1. Resolved ยท Oct 18, 22:23 UTC
    ๐ŸŽ‰ The issue has been resolved and we are back to normal.
  2. Identified ยท Oct 18, 21:46 UTC
    ๐Ÿ› ๏ธ We have identified the root cause of the incident, and are working diligently to fix.

More from Cohere

Full history
StartedIncidentDuration
Sep 115:41 UTCMultiple Endpoint Disruptions4h 22m
Aug 519:36 UTCDocumentation Content Loading Issues57m
Jul 2322:56 UTCDashboard Login Service Disruption51m
Jun 113:51 UTC/audio/transcriptions endpoint returns error for audio files with unexpected sampling rate2h 54m
Apr 2022:16 UTCDocs Platform Degraded Performance13m
Apr 1319:36 UTCMultiple Model Disruptions1h 25m

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