Quotas and Limits

This document contains current content limits and request quotas for the Vision API. This page will be updated to reflect any changes to these restrictions and usage limits.

Content limits

The Vision API enforces the following usage limits:

Content Limit Value
Image file size 20 MB
JSON request object size 10 MB
Images per request 16

Base64-encoded images may exceed the JSON size limit, even if they are within the image file size limit. Larger images should be hosted on Cloud Storage or at a publicly-accessible URL. Note that base64-encoded images can have a larger file size than the original image file (usually about 37% larger).

Request quotas

The current API usage quotas for the Vision API are as follows (and are subject to change):

Vision API request quota Value
Requests per minute (except request types listed below) 1,800
Celebrity recognition requests per minute zero
Asynchronous image annotation* number of images in processing 8,000
Asynchronous document text detection number of pages in processing 10,000
Product Search request quota Value
Requests per minute (except request types listed below) 1,800
Batch requests per day 300
Resource management write requests per minute 1,200
Resource management requests per minute 2,400

These limits apply to each Google Cloud Console project and are shared across all applications and IP addresses using that project.

Lower quotas can be set per user in the Google Cloud Console.

Quota increases

You can edit your quotas up to their maximum values by selecting EDIT QUOTAS from the Quotas page of the Google Cloud Console page. To request an increase above the maximum quota, edit your quota with your requested increase and justification and submit your update. You will be notified when your request has been received. You might be contacted for more information regarding your request. After your request has been reviewed, you will be notified whether it has been approved or denied.