GPT Image 2.5: Flare for speed, Sunburst for quality. Generate and edit with transparent backgrounds, 1K–4K output and up to 16 references. Select resolution and quality together and review the quote before generation.
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GPT Image 2.5 is not behind a subscription. A new account's first week is worth 18 credits — the 15-credit weekly grant plus a 3-credit welcome bonus — and every week after that lands the standard grant. Enough for a real test run, and the images are yours to keep.
Credits reset every Monday (UTC) and do not roll over. 4K + high (16 credits) fits in the first week but needs a top-up after that; 4K + max (35 credits) needs a top-up.
We ran the same prompts through both rendering styles at identical settings and compared the frames. Three of those runs are below — both styles, one prompt, no cherry-picking.
Photography
quality xhigh · 3:4 · one prompt
Flare holds the skin better. Pores, freckles and the oily highlight across the forehead are individually visible, where Sunburst renders a marginally smoother face. Both get the hard shadow and the wet-pavement return.
Both frames and the prompt on GitHub →Photography
quality xhigh · 3:2 · one prompt
Effectively a tie. Flare resolves the steam and the crowd into separate layers; Sunburst tightens the framing and gives slightly more definition to the cooking equipment. Three colour temperatures survive in both.
Both frames and the prompt on GitHub →Photography
quality xhigh · 3:4 · one prompt
Flare wins clearly. Flare puts a real flare streak across the frame and turns the hair into a rim that reads as light rather than as a painted edge; Sunburst is flatter and more even.
Both frames and the prompt on GitHub →Game
quality xhigh · 16:9 · one prompt
Sunburst wins clearly. Both tiers placed all five strings exactly right, but Sunburst stacks every readout into one tight block with a segmented speed bar, where Flare scatters them to four corners in flatter type.
Both frames and the prompt on GitHub →Game
quality xhigh · 4:3 · one prompt
Sunburst wins narrowly. Both produce a legible three-level cutaway with the warm/cold split; Sunburst resolves the cut walls, roots and rubble more distinctly.
Both frames and the prompt on GitHub →The rule that came out of it: if the picture is about light, use Flare. If it is about arrangement — type, interface, layout — use Sunburst. Both cost the same per image here.
Every frame below was generated with this model and is shown with the settings that produced it. Copy a prompt and run it yourself.
This gallery is our public atlas: 50 prompts, each shipped with the exact render it produced and the measurements behind it — tier, output axis, aspect ratio, pixel size and generation time. Every card above can be loaded straight into the generator.
Free to reuse with attribution. Each card also links to its case page, which holds the prompt file, the settings record and the full-size frame.
Send the identical prompt to GPT Image 2.5 Sunburst and compare the two rendering styles before you commit to one look.
Open Sunburst →The credit-cost table lists every image and video model, so you can budget a batch before you start generating.
Open credit costs →Choose Flare for fast image generation and editing. Describe the photographic, illustrated or graphic style you want in the prompt.
Best for: Product shots, editorial portraits, ads, UI mockups and any prompt that has to look photographed rather than painted.
Generate with Flare →Flare guide →Choose Sunburst for demanding image quality and precise edits. Describe the intended style and inspect the result for your task.
Best for: Posters, album and book art, character design, thumbnails and playful social assets.
Generate with Sunburst →Sunburst guide →1K · low
3 credits
5 images a week
1K · medium
4 credits
3 images a week
1K · high
6 credits
2 images a week
1K · xhigh
9 credits
1 image a week
1K · max
13 credits
1 image a week
2K · low
5 credits
3 images a week
2K · medium
7 credits
2 images a week
2K · high
10 credits
1 image a week
2K · xhigh
15 credits
1 image a week
2K · max
22 credits
needs a top-up
4K · low
8 credits
1 image a week
4K · medium
11 credits
1 image a week
4K · high
16 credits
needs a top-up
4K · xhigh
24 credits
needs a top-up
4K · max
35 credits
needs a top-up
Flare prioritizes speed; Sunburst prioritizes quality. Both can generate and edit images. They are not fixed photography and illustration modes: describe the desired style in your prompt and compare them on your own task.
Up to 20,000 characters, so you can paste a full art direction. For image-to-image, upload up to 16 reference images and describe how they should combine.
Choose both a resolution (1K, 2K or 4K) and a quality (low to max). The two choices set a single price of 3–35 credits per image. The price is shown before you generate, and results land in your history ready to download or reuse.
For comparable GPT Image 2.5 settings, Callirra is priced up to 40% below the official reference price. Choose your resolution and quality, see the lower quote before generation and keep the same low rate across your workflow.
GPT Image 2.5 is not locked behind a subscription. A new account's first week is worth 18 free credits (6 images at 1K + low), and every week after that lands 15 — 5 images at 1K + low, 3 at 1K + medium, or 2 at 1K + high.
GPT Image 2.5 uses the same Callirra credits as every other model, with a clear quote before each generation and automatic refunds for failed runs.
Flare prioritizes speed; Sunburst prioritizes quality. Both can generate and edit images. They are not fixed photography and illustration modes: describe the desired style in your prompt and compare them on your own task.
Up to 16 reference images per run, so you can lock a character or a product and only change the scene, the light or the styling.
Saved prompts, task history and generated assets live in your account. Re-run a prompt, tweak one line and compare the results side by side.
Resolution is a per-run choice, so you can explore ideas at 1K and render the winner at 4K instead of paying top price for every attempt.
Yes. Both GPT Image 2.5 Flare and GPT Image 2.5 Sunburst are live, and this page embeds the generator so you can start from here.
Yes. GPT Image 2.5 is one of the models included in the Free plan. A new account's first week carries 18 credits (the 15-credit weekly grant plus a 3-credit welcome bonus) and every week after that carries 15; the allowance resets weekly and does not stack. At 1K + low (3 credits), that is 6 images in week one and 5 each week after. At 1K + high (6 credits), it is 3 images in week one and 2 weekly. 4K + high costs 16 credits and fits in week one; 4K + max costs 35 credits and needs a top-up.
Pick a resolution and quality together. At 1K the low/medium/high/xhigh/max prices are 3/4/6/9/13 credits; at 2K they are 5/7/10/15/22; at 4K they are 8/11/16/24/35. The cost is shown in the generator before you press generate, and failed generations are refunded automatically.
Open the generator, choose Flare or Sunburst, pick the output tier and start with your Callirra credits.
Yes. Image-to-image accepts up to 16 reference images per run, which is enough for character consistency, product placement and multi-image composition.
1K, 2K and 4K, with auto, 1:1, 2:3, 3:2, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9.
Up to 20,000 characters, so long art-direction briefs, brand rules and negative constraints all fit in one prompt.
Yes. GPT Image 2.5 handles in-image typography well for short strings such as titles, labels and menu items — keep the text short and quote it explicitly in the prompt for the best accuracy.
No. Credit packs are available after your first subscription, but for occasional use the weekly free credits and any credit balance are enough — there is no requirement to stay subscribed.
Into your Callirra history, grouped per task. You can reopen, download or delete them at any time, and delete only hides them from your account — we never silently purge your library.
Callirra puts the model, prompt tools, history and one clear credit price in a single creative interface.
Flare prioritizes speed; Sunburst prioritizes quality. Both can generate and edit images. They are not fixed photography and illustration modes: describe the desired style in your prompt and compare them on your own task.
No. Resolution sets output dimensions; quality sets the rendering effort. Callirra lets you select both, such as 2K + high. Higher resolution does not automatically select max quality. Review the quote after changing either control.
Select Transparent in Background and choose PNG or WebP. JPEG cannot store transparency. A white backdrop or a drawn checkerboard is not a transparent image; download the original file and check its alpha channel.
OpenAI publishes token rates. The total depends on the selected output settings and input usage, including reference images. Compare matching settings and distinguish an output estimate from the complete API bill. Callirra shows its own credit quote before generation.
Quote the exact text, describe its placement, and state which reference details must remain unchanged. Ask for one focused change per edit, then inspect spelling and small details before publishing.
Callirra is an independent platform. Model names and trademarks belong to their respective owners. Callirra is not affiliated with, endorsed by, or sponsored by the model creators listed on this site.
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