ChatGPT has been a leader in AI image generation since its image feature launch in March. However, Google recently introduced its competitor, Nano Banana, as part of its Gemini 2.5 Flash Image model. Accessible via the Gemini app, Google AI Studio, or a dedicated website, Nano Banana excels in three areas: character consistency, realism, and image-to-image fusion.
For instance, Nano Banana consistently maintains character details across images, producing high-quality visuals that remain true to the prompt. When asked to manipulate images, it retains realism, accurately depicting users and backgrounds. In contrast, ChatGPT often yields less consistent results, with visible discrepancies in character details and realism. Furthermore, Nano Banana generates images faster—typically within ten seconds—compared to ChatGPT’s longer processing time. While professional tools like Midjourney dominate the market, for quick and realistic image creation, Gemini’s Nano Banana stands out as the superior choice.