I am encountering a persistent issue with the OpenAI “Generate Image” node in n8n Cloud. When attempting to generate an image, the workflow fails with the following error message:
Error:
The service is receiving too many requests from you
Access denied | api.openai.com used Cloudflare to restrict access
Error 1015 – You are being rate limited
Ray ID: 960c2d6d2daad376
To isolate the problem, I attempted to replicate the request using a custom HTTP Request node targeting the OpenAI image generation endpoint (https://api.openai.com/v1/images/generations). The result was the same: a Cloudflare 1015 error response in HTML format.
The text-based OpenAI nodes (such as chat/completions) continue to function as expected. This issue appears specific to the image generation endpoint and suggests that the outbound IP address used by n8n Cloud may be rate-limited or temporarily blocked by Cloudflare on behalf of OpenAI.
I have already submitted a support ticket to n8n but have not received a response so far. I am posting here to ask if this is a known issue, and whether there is a resolution or workaround available (such as routing through a different IP or temporarily disabling the node until it can recover).
Please advise if additional information is required. I can provide workflow configurations, execution logs, or test results upon request.