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Source reviewedOperational incidentLow

Cursor model degradation caused failed and retried agent requests

Cursor reported degraded requests using Composer 2.5 and Grok 4.6 Fast on September 2. The provider warned of failed or retried requests across Automations, Cloud Agents, the CLI and the IDE before service recovery.

First observed
Sep 2, 2026, 2:48:00 AM
Disclosed
Sep 2, 2026, 2:48:00 AM
Status
Resolved
Confidence
99%
Organization
Cursor
Last reviewed
Sep 4, 2026

Observed

Facts supported by sources

  • Cursor reported degraded requests using Composer 2.5 and Grok 4.6 Fast, with failed or retried requests possible across Automations, Cloud Agents, the CLI and the IDE.
  • Cursor opened the incident at 00:48 UTC, deployed a fix by 01:00 UTC and marked the incident resolved at 03:07 UTC on September 2.

Assessment

Interpretation, not observation

  • The public status record does not state whether Composer 2.5 and Grok 4.6 Fast shared one technical cause.
  • Other models were explicitly reported as unaffected.

Impact

Impact

Failed or retried coding and agent requests for users selecting the affected models across multiple Cursor products.

Response

Response

Cursor implemented a fix, monitored service restoration and then marked the incident resolved.

Methodology: Facts, interpretations, and uncertainty are kept separate. Confidence describes the strength of the evidence, not a probability estimate.