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by MasterScrat 693 days ago
Ok I now understand better what happened:

The price for using images as part of your prompt has indeed not changed between GPT-4o-mini and GPT-4o

Yet overall, captioning 500 images now costs me 5x less. This is because when I'm captioning an image, I'm providing both an image and a text prompt. The cost of using the image in the prompt stays the same, but the cost of the text dramatically dropped.