How the arithmetic works
18 of the 18 carry enough in their price matrix to work the shape through end to end, and the table below does exactly that with each model's own figures. No two billing shapes on this site share a model — a model has exactly one — so nothing here overlaps another billing page.
credits = a per-megapixel rate x the megapixels you render. A square 1024x1024 image is 1.05 megapixels; doubling each side quadruples the bill, not doubles it.
| Model | Rate | A 1-megapixel render | A 4-megapixel render |
|---|---|---|---|
| ERNIE Image Turbo | 1 credit/megapixel | 1 credit | 4 credits |
| Flux 2 Flash | 1 credit/megapixel | 1 credit | 4 credits |
| Flux 2 Klein 4B Base Edit | 1 credit/megapixel | 1 credit | 4 credits |
| Flux Schnell | 1 credit/megapixel | 1 credit | 4 credits |
| HiDream O1 Image | 1 credit/megapixel | 1 credit | 4 credits |
| HiDream O1 Image Dev | 1 credit/megapixel | 1 credit | 4 credits |
| HiDream O1 Image Edit | 1 credit/megapixel | 1 credit | 4 credits |
| Qwen Image | 1 credit/megapixel | 1 credit | 4 credits |
| SeedVR Upscale | 1 credit/megapixel | 1 credit | 4 credits |
| Flux 2 Klein 9B Base | 2 credits/megapixel | 2 credits | 8 credits |
| Qwen Image Edit 2511 | 2 credits/megapixel | 2 credits | 8 credits |
| Qwen Z Image | 2 credits/megapixel | 2 credits | 8 credits |
| FireRed Image Edit | 4 credits/megapixel | 4 credits | 16 credits |
| Flux 1.1 Pro | 4 credits/megapixel | 4 credits | 16 credits |
| Qwen Image 2 Edit | 4 credits/megapixel | 4 credits | 16 credits |
| Flux 2 Flex | 5 credits/megapixel | 5 credits | 20 credits |
| HunyuanImage 3.0 Instruct Edit | 9 credits/megapixel | 9 credits | 36 credits |
| LongCat Edit | 15 credits/megapixel | 15 credits | 60 credits |
Worked from each model's own price matrix. A cell reading “—” is one where the arithmetic produces a figure outside the complete-job range the same matrix declares, so nothing is printed.
All 18 models
Cheapest complete job first. Every row links to that model's spec page — tier and mode variants share a page with the model they are a variant of, so this is products rather than SKUs.
| Model | Provider | Credits per job | Its priced options |
|---|---|---|---|
| ERNIE Image Turbo | Baidu | 1 credit | Price 1 |
| Flux 2 Flash | Flux | 1 credit | Price 1 |
| Flux 2 Klein 4B Base Edit | Flux | 1 credit | Price 1 |
| Flux Schnell | Flux | 1 credit | Price 1 |
| HiDream O1 Image | HiDream | 1 credit | Price 1 |
| HiDream O1 Image Dev | HiDream | 1 credit | Price 1 |
| HiDream O1 Image Edit | HiDream | 1 credit | Price 1 |
| Qwen Image | Qwen | 1 credit | Price 1 |
| SeedVR Upscale | SeedVR | 1 credit | Price 1 |
| Flux 2 Klein 9B Base | Flux | 2 credits | Price 2 |
| Qwen Image Edit 2511 | Qwen | 2 credits | Price 2 |
| Qwen Z Image | Qwen | 2 credits | Price 2 |
| FireRed Image Edit | PrunaAI | 4 credits | Price 4 |
| Flux 1.1 Pro | Flux | 4 credits | Price 4 |
| Qwen Image 2 Edit | Qwen | 4 credits | Price 4 |
| Flux 2 Flex | Flux | 5 credits | Price 5 |
| HunyuanImage 3.0 Instruct Edit | Hunyuan | 9 credits | Price 9 |
| LongCat Edit | Meituan | 15 credits | Price 15 |
How these models are billed
Every model on this page uses the same billing shape.
- Charged per megapixel of output18 models
All figures are Versely credits. A credit figure marked as a headline rate is not the cost of a complete job. Your plan's credit allowance is on the pricing page.
More billing shape pages
Every model on Versely · Model providers · Ranked buyer guides
Frequently asked questions
Which AI models are billed per megapixel?+
18 on Versely — all of them image models, from 8 providers. credits = a per-megapixel rate x the megapixels you render. A square 1024x1024 image is 1.05 megapixels; doubling each side quadruples the bill, not doubles it.
Is a per megapixel model cheaper?+
Not in itself — the shape is how you are charged, not how much. Across these 18 models a complete job runs 1 to 15 credits. What the shape does tell you is which lever moves your bill, and on this page that lever is the same for every model listed.
What is the cheapest model billed per megapixel?+
ERNIE Image Turbo has the lowest complete-job cost of the 18 at 1 credit. The worked example table above shows the same arithmetic applied to every model that publishes enough of its matrix to support it.
Can I compare a per megapixel model against one billed another way?+
Only on the cost of a complete job, never on the headline figure. That is the whole reason these pages are split by shape — a rate compared against a job total is two different quantities in one column. Versely's ranked buyer guides sort on complete-job cost for exactly this reason.
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