Are gpt-image-1 and regular gpt-4o the same API call?
No. gpt-image-1 is designed for image generation and editing; when calling it, you should select the corresponding image endpoint and model ID. It has technical ties to the ChatGPT image experience, but this does not mean that regular gpt-4o conversation calls are the same workflow, nor does it automatically include features such as voice or web access.
How can I modify an existing image?
Call /openai/images/edits, explicitly specify model=gpt-image-1, and provide the image URL and prompt modification instructions. You can submit multiple reference images, but it is best to explain the purpose of each image while distinguishing what should be kept and what should be changed, making the editing goal easier to express.
How can I make titles more accurate when generating posters?
Write the title text separately from the image description, clearly specify the exact text to appear, its position, and hierarchy, and try to avoid crowding long passages into complex backgrounds. gpt-image-1 excels at rendering text in images, but the completed image still needs to be proofread character by character; for formal posters, refine the typography after confirming the visual design.
Can I generate assets with transparent backgrounds?
The image endpoint provides background=transparent, which can be used to request a transparent background; PNG or WebP is recommended for output. The prompt should also describe requirements for the subject and edges. After downloading the result, check the alpha channel and edge quality, especially thin lines, semi-transparent materials, and shadow areas.
How do I integrate image generation and editing into an application?
Use the image generation endpoint for creation from scratch; use the editing endpoint to modify existing images, and explicitly specify model=gpt-image-1. The application reads the image URL or Base64 result; for asynchronous requests, save task_id and query it later. Do not process image responses as ordinary conversation text.