Image generation returns 451 image_safety: the generated image is being blocked, not an API key failure (3 troubleshooting steps + analysis of retests across 5 documentation sets)
Author’s note: When an image API returns HTTP 451 with the error code image_safety, the image being filtered is the one that was generated—not your API key being rejected. Based on APIYI’s documentation and retests, this article explains how 451 differs from 401 and 429, what you should change, and why you shouldn’t keep retrying….