AI image model by OpenAI
GPT Image 2.5: Flare for speed, Sunburst for fine detail
GPT Image 2.5 is OpenAI's image model. Banana Studio offers two versions of it: Flare, the faster default, and Sunburst, which takes longer and puts extra care into intricate detail. Both create images from text and edit photos you upload.
- From 25 credits
- 7 aspect ratios
- Up to 4K
- Edit with up to 4 photos
What GPT Image 2.5 is good at
Two engines, one prompt
Write the prompt once, create it with Flare, then switch to Sunburst in the model menu and compare the two results side by side in History.
Known pixel sizes
Every aspect ratio maps to a fixed width and height, so you know the exact output dimensions before you create. The size table on this page lists all of them.
A 4K tier for big canvases
The 4K setting renders the largest canvas this model offers in Banana Studio, which leaves room for large screens, print and tight crops.
Edits keep your photo's shape
When you edit a picture and leave the aspect ratio untouched, the result follows the shape of the photo you uploaded instead of forcing a square.
GPT Image 2.5 prices in credits
| Model | Setting | Credits |
|---|---|---|
| GPT Image 2.5 | 2K | 25 |
| GPT Image 2.5 | 4K | 40 |
| GPT Image 2.5 Sunburst | 2K | 30 |
| GPT Image 2.5 Sunburst | 4K | 45 |
- Prices are per image. Reference photos do not change the price.
- The exact price for your settings is shown on the Create button before you start.
- The 7-day introduction ($1.99, 240 credits) covers 9 images at the lowest setting, and the Pro plan's 2,200 monthly credits cover about 88 images.
Plans: $1.99 for a 7-day introduction with 240 credits, then $29.99 a month for 2,200 credits, or $59.97 every 3 months with 2,200 credits each month. The introduction is a paid period, not a free trial. See plans · How credits work
Output sizes
| Aspect ratio | 2K | 4K |
|---|---|---|
| 1:1 | 1,024 × 1,024 | 2,880 × 2,880 |
| 16:9 | 1,920 × 1,088 | 3,840 × 2,160 |
| 9:16 | 1,088 × 1,920 | 2,160 × 3,840 |
| 4:3 | 1,024 × 768 | 3,200 × 2,400 |
| 3:4 | 768 × 1,024 | 2,400 × 3,200 |
| 3:2 | 1,536 × 1,024 | 3,456 × 2,304 |
| 2:3 | 1,024 × 1,536 | 2,304 × 3,456 |
How to create with GPT Image 2.5
Choose the engine
Pick GPT Image 2.5 for Flare, or GPT Image 2.5 Sunburst, in the Create model menu.
Write a prompt or upload
Describe the picture, or choose Change a photo and add up to four images to edit or combine.
Set the size and create
Pick the aspect ratio and the 2K or 4K tier. The Create button updates with the price before you confirm.
Try a prompt
- Flat lay of a summer picnic: striped blanket, peaches, a paperback and sunglasses, top-down, bright daylight
- Isometric illustration of a tiny bookshop with a cat sleeping in the window, warm evening light, detailed
- Wide website banner of a calm mountain lake at sunrise with empty space on the left for a headline
Who uses GPT Image 2.5
Designers
Draft layout ideas, mood images and background plates at a pixel size you already know.
Marketers
Make a wide web banner and a tall story image from the same brief by changing only the shape.
Illustrators
Use Sunburst when a scene is full of small detail, such as patterns, jewelry or a crowded street.
Good to know
- In the model menu, Flare is listed as GPT Image 2.5 and the other engine as GPT Image 2.5 Sunburst.
- Sunburst is slower than Flare. Test a prompt with Flare first, then switch for the final version.
- At the 2K setting a square image is 1024 by 1024 pixels. Choose 4K for a larger square.
- GPT Image 2.5 is made by OpenAI. Banana Studio is an independent app that offers it and is not affiliated with OpenAI.
- Page reviewed October 25, 2026.
Questions about GPT Image 2.5
What is the difference between Flare and Sunburst?
They are two versions of GPT Image 2.5. Flare is the faster default. Sunburst takes longer and adds fidelity on intricate detail. Sunburst also costs a little more; both prices are listed above.
How many credits does GPT Image 2.5 use?
GPT Image 2.5 costs 25 credits at 2K and 40 at 4K. GPT Image 2.5 Sunburst costs 30 credits at 2K and 45 at 4K. Prices are per image. The 7-day introduction ($1.99, 240 credits) covers 9 images at the lowest setting, and the Pro plan's 2,200 monthly credits cover about 88 images. The exact price for your settings is shown on the Create button before you start.
What sizes can GPT Image 2.5 make?
Seven aspect ratios: square, 16:9, 9:16, 4:3, 3:4, 3:2 and 2:3. Each one has a fixed pixel size at 2K and at 4K, and the size table on this page lists them.
Can I edit a photo with GPT Image 2.5?
Yes. Choose Change a photo, add up to four pictures and describe the change. If you keep the default aspect ratio, the result keeps the shape of your photo.
Who owns the images I make?
Under Banana Studio's Terms you own the outputs you generate, to the extent the law and the model provider's terms allow, and you may use them for personal and commercial purposes.
Do I need an OpenAI account to use GPT Image 2.5?
No. Banana Studio runs the model for you. All you need is a Banana Studio account with credits from a plan.