GPT Image 2.5 on Geneso: AI image generator.

OpenAI announced GPT Image 2.5 alongside ChatGPT Images 2.5. The family includes Flare and Sunburst, both of which accept text and image inputs and produce images. This page covers the family, while its generator links select Sunburst. You can choose Flare separately in Geneso when its positioning better fits your workflow.

OpenAI describes more natural lighting and richer textures, better preservation of subjects from reference photos, and more reliable editing instructions across multiple turns compared with its earlier Images model. Those are the maker’s descriptions, not guarantees for every image. Inspect the subject, the background and any text in the output before relying on it.

OpenAI calls Flare its fast default for everyday generation. It positions Sunburst as its most capable image generation and editing model for workflows where editing precision matters most, with longer generation times. The choice is about the trade-off you need for a particular task, not a promise that a single model will suit every prompt.

Sunburst is a model, not a quality level. On Geneso, Low, Medium and High are separate quality settings. You can use references to guide an image or an edit and explain in the prompt what should change and what should remain. For a new image, start with the subject and visual treatment before adding details.

Open the image generator with Sunburst selected by this page. You can write prompts in Spanish or English and do not need a separate OpenAI account to use the model on Geneso.

The recipe card in the hero asks for four panels with specific labels. In that Sunburst take, every requested label appeared. The coffee photograph asks for ceramic, glass, linen, steam and soft morning light. Compare the original prompts to see how a designed layout and a photographic subject need different instructions.

The fisherman take uses a documentary setting and calls attention to skin, rope and wood. The rooftop garden switches to an isometric illustration with clay-like materials. Each image records a single generation, so use it as evidence of that run rather than a guarantee of the next one.

When adapting a prompt, decide which detail must remain recognizable and which can vary. For an edit, state that distinction explicitly alongside the reference. For an image with lettering, quote the words and inspect them after generation. Small, focused changes between attempts make the effect of each revision easier to judge.

The live table compares Sunburst, Flare, Nano Banana 2.1 and Seedream 5.0 Pro by largest size, aspect ratio count, default credits per image and plan access. Each default cost reflects that model’s own default request. The table describes available settings, not visual quality or a speed benchmark.

Explore FLUX 3 and Ideogram 4.0 for other approaches to an image brief. The Geneso vs Krea comparison addresses platform choice instead. For a practical model comparison, use a consistent prompt, record any setting differences and inspect the resulting images.

A Sunburst image with default settings costs 10 credits. Sunburst is available on the Free plan. The generator shows an estimate for your chosen request before generation. Review it again when you change the size or quality.

The Free plan includes 300 welcome credits and 50 daily credits. Free accounts use the smallest size and Low quality. A paid plan or any credit purchase unlocks larger sizes and higher quality. Compare the estimate with your balance before trying a prompt.

Starter costs $3.99 per month. See pricing for current plans. The Geneso catalog contains 63 image models if you want to explore more choices.