Stack AI Partial Outage - May 4, 2026

Provider incident title: “Elevated errors on Claude Opus 4.5”

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Started

Monday, May 4, 2026

08:09 AM UTC

Duration

< 1 minute

total

Resolved

08:09 AM UTC

May 4, 2026

Severity: Partial Outage|Affected: Stack AI|Duration: < 1 minute

Incident Timeline

08:09 AM UTC—Resolved

Type: Incident Duration: 4 days, 3 hours and 52 minutes Affected Components: Anthropic → Claude API (api.anthropic.com) May 4, 09:14:14 GMT+0 - Identified - We are continuing to work on a fix for this issue. May 4, 08:09:58 GMT+0 - Investigating - We are continuing to investigate this issue. May 4, 09:49:29 GMT+0 - Resolved - This incident has been resolved. May 4, 08:19:01 GMT+0 - Identified - The issue has been identified and a fix is being implemented. May 4, 09:23:04 GMT+0 - Monitoring - A fix has been implemented and we are monitoring the results. May 4, 08:09:37 GMT+0 - Investigating - We are currently investigating this issue.

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About This Report

Stack AI 30-day uptime: 99.9% based on Tickerr's independent monitoring checks.

This incident was sourced from Stack AI's official status RSS feed. Tickerr polls RSS feeds every 10 minutes and merges updates from the same outage into a single incident timeline.

This incident lasted < 1 minute.

Tickerr monitors 90+ AI tools independently. View live Stack AI status or all AI tool status.