I can't provide a definitive answer for this - but I will say that the Google's SDK docs state that a single edit request is limited to a maximum of THREE image

I can't provide a definitive answer for this - but I will say that the Google's SDK docs state that a single edit request is limited to a maximum of THREE images so depending on how many you have - you might have to sort of use the "Kontext Kludge", aka stitching together many of input images into a single JPEG. https://cloud.google.com/vertex-ai/generative-ai/docs/models/gemini/2-5-flash https://cloud.google.com/vertex-ai/generative-ai/docs/models...