Image generation powered by OpenAI's gpt-image-2.5-sunburst (GPT Image 2.5 Sunburst), the next-generation flagship image model after GPT Image 2, with sharper detail, richer lighting, better composition and stronger prompt adherence. Describe the picture you want in a few sentences and receive a high-resolution illustration or photo-style output; style, aspect ratio and subject are all controllable via prompt. A quality selector above the input box defaults to auto (the model decides from the prompt) and also offers low, medium, high, xhigh and max; higher levels render more detail and take longer. You can also upload up to sixteen pictures and edit them with plain-language instructions such as "replace the background with a city at night" or "change the jacket to red"; if the result is not quite right, just send another instruction and the previous output is reused for continuous refinement, while uploading a new picture starts from that picture instead. Great for marketing banners, slides, blog headers and product concept art. To compare styles, try GPT Image 2 or Nano Banana Pro as well. The generated image size is chosen automatically by the model from your prompt: commonly 1024x1024 (square), 1024x1536 (portrait), or 1536x1024 (landscape), and other resolutions are possible, with the longest edge up to 3840 pixels. Maximum total upload size per request: 256MB (all files and message content combined). Accepted image formats: jpeg, jpg, png, webp. Maximum number of images: 16. Maximum size per image: 50MB. Image dimensions: at least 200 pixels per side. Maximum image resolution: 36,000,000 pixels in total. Output content formats: Image Image output size: chosen automatically by the model from the prompt; commonly 1024x1024, 1024x1536, or 1536x1024 pixels, and other resolutions are possible (longest edge up to 3840 pixels). This module supports continuous conversations. AI can make mistakes. Please verify important information.