GPT Image models on HFLUX
Three of them: GPT 2.5 Sunburst, GPT 2.5 Flare and GPT 2. Only the two 2.5 models let you pick a quality tier, and that single choice moves the price more than anything else — the same 2K image runs from 27 to 108 credits.
Credits per image
| Model | Tier | 2K | 4K |
|---|---|---|---|
| GPT 2.5 Sunburst GPT 2.5 Flare | Standard | 27 | 45 |
| High | 48 | 80 | |
| Max | 108 | 180 | |
| GPT 2 | — | 43 | 100 |
Sunburst and Flare cost the same All three models add 3 credits per reference image Rates for every other model are on the pricing page
How the three differ
| GPT 2.5 Sunburst | GPT 2.5 Flare | GPT 2 | |
|---|---|---|---|
| Leans toward | Precise editing | Fast, high quality | Reasoning-based |
| Quality tiers | Three | Three | — |
| 15 templates | Yes | — | — |
| Transparent background | Yes | Yes | — |
| Resolution | 2K · 4K | 2K · 4K | 2K · 4K |
All three render at 2K (2048) and 4K (3840) with 16:9 · 9:16 · 1:1 aspect ratios, and take up to 14 reference images at 25MB each.
Quality tiers
Only the two GPT Image 2.5 models offer standard, high and max. Moving up raises the price at the same resolution — at 2K that is 27 → 48 → 108 credits.
Resolution and tier each move the price, so 4K on max is the highest at 180 credits an image and 2K on standard the lowest at 27. The generate button shows the computed amount as you change either one.
Fifteen templates
GPT 2.5 Sunburst lets you state what kind of thing you are making up front.
Poster and key visual, headshot, logo, icon set, illustration, infographic and diagram, advertisement, flyer, thumbnail, book cover, packaging design, merchandise mockup, app screen mockup, website mockup, and interior rendering — fifteen in all.
Transparent-background sprite sheets
On the two GPT Image 2.5 models, choosing the sprite sheet category returns a grid laid out on a transparent background. The category only appears on the 2.5 models, which are the ones that actually send a transparent background, and switching models while it is selected resets it to none.
How billing works
Images are billed per image and only for what is actually returned. There is no monthly subscription, and credits stay valid for one year from the date of purchase. Failed generations are refunded.
Frequently asked questions
How many GPT Image models are on HFLUX?
Three: GPT 2.5 Sunburst, GPT 2.5 Flare and GPT 2, all from one account. Sunburst leans toward precise editing and Flare toward fast generation, and the two cost the same.
What does one GPT Image cost?
GPT 2.5 Sunburst and Flare are 27 credits an image at 2K and 45 at 4K on the standard tier, 48 and 80 on high, and 108 and 180 on max. GPT 2 has no tiers and costs 43 at 2K and 100 at 4K.
What do the quality tiers change?
There are three — standard, high and max — and only the two GPT Image 2.5 models offer them. Moving up a tier raises the price at the same resolution: at 2K that is 27, 48 and 108 credits.
What resolutions and aspect ratios does GPT Image support?
All three models offer 2K and 4K, meaning 2048 and 3840 pixels. Aspect ratios are 16:9, 9:16 and 1:1.
Do reference images cost extra?
Yes. All three models add 3 credits per reference image, up to 14 images at 25MB per file.
What are the template categories?
Fifteen: poster and key visual, headshot, logo, icon set, illustration, infographic and diagram, advertisement, flyer, thumbnail, book cover, packaging design, merchandise mockup, app screen mockup, website mockup, and interior rendering. Only GPT 2.5 Sunburst offers them.
Can I generate on a transparent background?
On the two GPT Image 2.5 models, choosing the sprite sheet category returns a grid laid out on a transparent background. The category is hidden on other models, and switching models while it is selected resets it to none.