Is Cursor down? › Outage history › Sep 3, 2026

Cursor partial outage on Sep 3, 2026: what happened

On Sep 3, 2026, the Cursor status page reported "Elevated errors for Anthropic Models". About 2 hours 15 min: from Sep 3, 2026, 14:17 UTC to Sep 3, 2026, 16:31 UTC, by the official start and resolution times.

Cursor right now

At our last refresh (Oct 22, 2026, 12:35 UTC) Cursor was up: All Systems Operational.

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Started
Sep 3, 2026, 14:17 UTC
Resolved
Sep 3, 2026, 16:31 UTC
Duration
2 hours 15 min
Official impact
Major
Affected
Automations, CLI, Cloud Agents, IDE
Source
Elevated errors for Anthropic Models on the Cursor status page

The Cursor status page rated the impact "Major": a partial outage. Some parts or some users were affected; it was not a complete outage.

What caused the Cursor partial outage?

The Cursor status page has not published a cause. Its updates describe the symptoms only.

When was it fixed?

The Cursor status page marked it resolved at Sep 3, 2026, 16:31 UTC, 2 hours 15 min after it started. Its resolution note: "Elevated errors affecting Anthropic models have been resolved. Service has been restored."

Timeline of official updates

Every update the Cursor status page posted, oldest first. Times are UTC.

  1. Sep 3, 2026, 14:17 UTC investigating

    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.

  2. Sep 3, 2026, 15:55 UTC investigating

    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.

  3. Sep 3, 2026, 16:31 UTC resolved

    Elevated errors affecting Anthropic models have been resolved. Service has been restored.

Cursor partial outage questions

What caused the Cursor partial outage on Sep 3, 2026?

The Cursor status page has not published a cause.

When was the Cursor partial outage on Sep 3, 2026 fixed?

The Cursor status page marked it resolved at Sep 3, 2026, 16:31 UTC, 2 hours 15 min after it started. Its resolution note: "Elevated errors affecting Anthropic models have been resolved. Service has been restored."

How long did the Cursor partial outage last?

About 2 hours 15 min: from Sep 3, 2026, 14:17 UTC to Sep 3, 2026, 16:31 UTC, by the official start and resolution times.

Was Cursor completely down?

No. The Cursor status page rated the impact "Major": a partial outage. Some parts or some users were affected; it was not a complete outage. The affected parts listed were: Automations, CLI, Cloud Agents, IDE.

Which parts of Cursor were affected?

The Cursor status page listed: Automations, CLI, Cloud Agents, IDE.

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Quotes are the Cursor status page's own words, from the official incident. Is It Up or Down is independent and not affiliated with Cursor. Times are UTC.