GPT-Image-2's transparent background trick outperforms editing tools
openai added a background=transparent parameter to its gpt-image-2 api that bakes the alpha channel during generation, which outperforms post-processing on complex edges like glass.
openai released an update for its gpt-image-2 api allowing users to generate images with transparent backgrounds natively by setting a background=transparent parameter. unlike workflows that require post-processing removal, this method generates the alpha channel during creation to better handle complex edges like glass and fibers. the feature targets use cases such as product photography, powerpoint diagrams, icons, and merchandise design. developers using python and the pillow library can implement this immediately, though openai advises omitting background descriptions from prompts to ensure clarity.