Abstract: A method and an analysis device thereof for analyzing a degree of correlation between an image generated by a generative model and a text prompt are proposed. The method includes receiving the text prompt by an analysis device, inputting the text prompt into the text-to-image generative model by the analysis device, calculating, by the analysis device, degrees of correlation between text elements in the text prompt and conditional latent vectors for each text element, and determining, by the analysis device, at least one text element among the text elements for generating the image if the degrees of correlation for the at least on text element is greater than a threshold value, wherein the conditional latent vectors are generated in a process of generating the image by the text-to-image generative model.