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Incident affecting Cloud Vision

We are experiencing a decrease in availability of Cloud ML Vision, increase in latency.

Incident began at 2022-04-20 17:59 and ended at 2022-04-20 22:18 (all times are US/Pacific).

Previously affected location(s)


Date Time Description
21 Apr 2022 17:51 PDT

We apologize for the inconvenience this service disruption/outage may have caused. We would like to provide some information about this incident below. Please note, this information is based on our best knowledge at the time of posting and is subject to change as our investigation continues. If you have experienced impact outside of what is listed below, please reach out to Google Support by opening a case

(All Times US/Pacific)

Incident Start: 20 April 2021 17:59

Incident End: 20 April 2021 22:18

Duration: 4 hours, 19 minutes

Affected Services and Features:

Cloud Vision - Vision API

Regions/Zones: Global


Cloud Vision API experienced increased latency and decreased availability for Cloud ML Vision text detection features for a duration of 4 hours, 19 minutes.

From preliminary analysis, the root cause of the issue was due to a recent update in the Optical Character Recognition [OCR] Model [1] which resulted in performance issues on Cloud Vision API.

[1] -

The issue was resolved on Wednesday, 20 April 22:18 once a rollback of the change was completed.

Customer Impact:

  • Affected customers may have experienced increased latency and elevated errors.
  • Some features of Cloud Vision API were temporarily unavailable.
21 Apr 2022 10:46 PDT

The issue with Cloud Vision has been resolved for all affected users as of Wednesday, 2022-04-20 22:17:21 US/Pacific. We thank you for your patience while we worked on resolving the issue.

21 Apr 2022 10:44 PDT

We are experiencing an issue with Cloud Vision beginning at Wednesday, 2022-04-20 17:59 US/Pacific.

Our engineering team continues to investigate the issue.

We will provide an update by Thursday, 2022-04-21 00:35 US/Pacific with current details.

We apologize to all who are affected by the disruption.