# What broke on 2026-10-23

- Incidents: 99 at 53 providers; major outages: 15
- Downtime: 3d 23h

## Worst
- **Anthropic**: [Elevated errors for Claude Fable 5.1, Sonnet 5.5, and Haiku 5.5](https://down.guide/anthropic/DWN-e6ab419d78) (Major outage; lasted 34m; started 2026-10-23 23:37 UTC; claude.ai, Claude API (api.anthropic.com), Claude Code +1)
- **Salesforce**: [coreService Disruption on USA572, USA580, USA586, USA648…](https://down.guide/salesforce/DWN-b6e9715d1c) (Major outage; lasted 5h 25m; started 2026-10-23 01:25 UTC; coreService; usa572, usa580, usa586, usa648)
- **Salesforce**: [coreService Disruption on BRA34, BRA36, BRA38, BRA48…](https://down.guide/salesforce/DWN-5b7af833ac) (Major outage; lasted 5h 5m; started 2026-10-23 01:25 UTC; coreService; bra34, bra36, bra38, bra48)
- **Salesforce**: [coreService Disruption on USA228, USA316, USA328, USA604…](https://down.guide/salesforce/DWN-fdd981f6fa) (Major outage; lasted 4h 53m; started 2026-10-23 01:25 UTC; coreService; usa228, usa316, usa328, usa604)
- **Salesforce**: [coreService Disruption on CAN28, USA236, USA286, USA312…](https://down.guide/salesforce/DWN-a4ef1f7ac6) (Major outage; lasted 4h 45m; started 2026-10-23 01:25 UTC; coreService; can28, usa236, usa286, usa312)
- **Salesforce**: [coreService Disruption on USA332, USA334, USA336, USA358…](https://down.guide/salesforce/DWN-a6254fa4b3) (Major outage; lasted 4h 8m; started 2026-10-23 01:25 UTC; coreService; usa332, usa334, usa336, usa358)
- **Salesforce**: [coreService Disruption on USA1380](https://down.guide/salesforce/DWN-0cff73cf8f) (Major outage; lasted 7h 15m; started 2026-10-23 01:25 UTC; coreService; usa1380)
- **Salesforce**: [coreService Disruption on USA1408](https://down.guide/salesforce/DWN-7dd0457ef8) (Major outage; lasted 6h 50m; started 2026-10-23 01:25 UTC; coreService; usa1408)
- **Salesforce**: [coreService Disruption on USA1400](https://down.guide/salesforce/DWN-19c08adb59) (Major outage; lasted 6h 13m; started 2026-10-23 01:25 UTC; coreService; usa1400)
- **Salesforce**: [coreService Disruption on USA700](https://down.guide/salesforce/DWN-245d7eac71) (Major outage; lasted 3h 25m; started 2026-10-23 01:25 UTC; coreService; usa700)

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