ChatGPT’s Latest AI Image Generator Is Its Best Yet, But Nano Banana Pro Is Still Better

GPT Image 1.5 is OpenAI’s third new model in about a month, and it arrives in the wake of Nano Banana Pro‘s dominant launch (the original version won our Technical Excellence award). I’ve spent some time with the new ChatGPT model and found that it’s appreciably better than its predecessor. (This isn’t another GPT-5.2 situation, in which few people noticed any differences after the upgrade.) Generated images have fewer errors and less distortion, and they tend to look more…