Changes / Cursor / Elevated errors for Anthropic Models
Cursor: Major incident: Elevated errors for Anthropic Models
Summary
Cursor reported a major incident affecting Automations, CLI, Cloud Agents, and IDE from 2026-09-03 14:17 UTC to 2026-09-03 16:31 UTC (2 h 14 min). An upstream Anthropic issue caused elevated errors or failed Agent turns for Fable 5.1, Fable 5, Opus 5, Opus 4.8, and Opus 4.6 requests; service was restored.
Machine-written from the diff below (Sol; type: incident outage). Check the diff before relying on it.
What changed
Before: not present
After: Elevated errors for Anthropic Models
Before: not present
After: major
Before: not present
After: resolved
Before: not present
After: 2026-09-03 14:17 UTC
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After: 2026-09-03 16:31 UTC
Before: not present
After: Automations, CLI, Cloud Agents, IDE
Before: not present
After: An upstream Anthropic issue is causing elevated errors for Fable 5.1, Fable 5, Opus 5, Opus 4.8, and Opus 4.6 requests. Some users may experience errors or failed Agent turns. We're monitoring recovery and will provide updates.
Before: not present
After: Anthropic reports recovery across most models. The affected models right now are Opus 4.8 and Opus 5. Please see https://status.claude.com/ for provider updates.
Before: not present
After: Elevated errors affecting Anthropic models have been resolved. Service has been restored.
First version of this incident archived by Rewindex. View the live incident (opens in new tab).
History of this incident
| When (UTC) | Change | Kind |
|---|---|---|
| Major incident: Elevated errors for Anthropic Models (this change) Cursor reported a major incident affecting Automations, CLI, Cloud Agents, and IDE from 2026-09-03 14:17 UTC to 2026-09-03 16:31 UTC (2 h 14 min). An upstream Anthropic issue caused elevated errors or failed Agent turns for Fable 5.1, Fable 5, Opus 5, Opus 4.8, and Opus 4.6 requests; service was restored. | Major incident |