GPT Image 2.5 is an image generation and editing family with two variants: Flare and Sunburst. Both accept a text prompt and can work with reference images. The useful distinction is the workflow you need. Flare is the practical starting point when you want to test several ideas quickly. Sunburst is the better fit when an edit needs careful control over the subject, layout, or details that should remain unchanged.
On Toolaze, you can try GPT Image 2.5 free online. Write a prompt to create a new image, or switch to image-to-image and upload a reference. The generator keeps the model choice, aspect ratio, resolution, and result history in one place, so you can move from a rough idea to a reviewable visual in the same workspace.
A good GPT Image 2.5 prompt describes the subject, composition, style, lighting, text, and constraints in that order. For an edit, say what must change and what must stay. This makes it easier to inspect the result and request one focused revision instead of rewriting the entire prompt after every attempt.
GPT Image 2.5 is useful for product concepts, social graphics, campaign drafts, storyboards, interface sketches, editorial layouts, and reference-guided changes. It is still an image generator, so review small text, faces, hands, brand names, legal copy, and important product details before publishing the result.