ai-computer-vision
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AI Computer Vision User Guide
Last updated Mar 3, 2026
To prevent misuse of the server and to differentiate between different licensing plans, API requests made to the server are regulated based on your chosen licensing options. If you find that the rate limit is insufficient, contact UiPath. For details, refer to Licensing.
The rate limit has a sliding window of one minute. When the server request is made, the sum of all image sizes sent within
the last minute is checked and:
- If the sum does not exceed the rate limit, the request goes through.
- If the sum exceeds the rate limit, the request does not go through and you receive an HTTP 429 error in Studio with this error
message:
Error: Rate limit exceeded. If you're on a free tier, consider upgrading to paid license. If already on a paid license, please contact UiPath for further upgrade options.
Given the fact there is a one-minute sliding window rate limit and the requests are retried, for a failed request to go through, more bandwidth must become available.
In the following example, the 12:00:06 request can only go through at 12:01:00.
12:00:00 - image request 5MP >> 25MP available
12:00:01 - image request 5MP >> 20MP available
12:00:02 - image request 5MP >> 15MP available
12:00:03 - image request 5MP >> 10MP available
12:00:04 - image request 5MP >> 5MP available
12:00:05 - image request 5MP >> 0MP available
12:00:06 - image request 5MP >> failed request - no more quota left
...
12:01:00 - 5MP available12:00:00 - image request 5MP >> 25MP available
12:00:01 - image request 5MP >> 20MP available
12:00:02 - image request 5MP >> 15MP available
12:00:03 - image request 5MP >> 10MP available
12:00:04 - image request 5MP >> 5MP available
12:00:05 - image request 5MP >> 0MP available
12:00:06 - image request 5MP >> failed request - no more quota left
...
12:01:00 - 5MP available