Anthropic
Claude Code
No data
Last success —
No component payload
Elevated errors for Claude Fable 5.1, Sonnet 5.5, and Haiku 5.5
4 up0 degraded0 down1 unknown
Snapshot 18:25:40 UTC
updates every 60s
Official incident · Claude Code
Elevated errors for Claude Fable 5.1, Sonnet 5.5, and Haiku 5.5
resolved · 2026-10-23 23:37:42 UTC · Resolved 2026-10-24 00:11:20 UTC
Official component matchcriticalclaude.aiClaude API (api.anthropic.com)Claude CodeClaude Cowork
Official updates
- resolved
The issue affecting Claude models has been resolved. Impact occurred from 16:28 PT / 23:28 UTC on October 23 to 16:59 PT / 23:59 UTC on October 23.
- monitoring
We are seeing success rates return to normal for all affected models, and are continuing to monitor to ensure no further issues.
- identified
We have identified the cause of elevated errors on requests to Claude Fable 5.1, Sonnet 5.5, and Haiku 5.5, as well as fast mode requests to Opus 5.5 and are working on a fix. We will provide an update as soon as possible.
- investigating
We are investigating elevated errors on requests to Claude Fable 5.1. We will provide an update as soon as possible.
Could not read official status. Unknown is not operational.
DATA SOURCE
Data from each vendor official status page, refreshed every 60 seconds. Failed reads show unknown and last success time.
- status.claude.com/api/v2/summary.json
- status.openai.com/api/v2/summary.json + components.json
- status.cursor.com/api/v2/summary.json
- www.githubstatus.com/api/v2/summary.json
Snapshots and status changes are retained for up to 7 days; official incidents remain in the site index. Everything is generated only from official data captured by this site.