DDColor
ddcolor-colorizeDDColor by Xiaoyang Kang et al. colorizes black-and-white photos using dual decoders that jointly learn pixel colors and semantic color queries, giving vivid and natural results on old images.
- Price
- ≈ US$0.0012/run
- Input → output
- Text + Image → Image
- Developer
- Community
- Updated
- September 23, 2026
Playground
Try DDColor
Input & output
This run
about US$0.0012 · 0.12 credits
US$0.0036 (0.36 credits) are reserved at the start; the actual GPU time is billed.
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10 free credits (US$0.10) when you sign up with Google
Usable 24 hours after sign-up, up to 5 runs per day and at most 2 credits per run. Other sign-in methods start without credits. Enough for 27 runs of this model.
Examples
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InputNo text prompt: the model only takes the input shown.
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InputNo text prompt: the model only takes the input shown.
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InputNo text prompt: the model only takes the input shown.
About DDColor
DDColor is a model by Community in the Image generation category. On Railwail, DDColor costs ≈ US$0.0012 per run.
Pricing
| Typical run (≈ 1 s on L40S) | US$0.0012 per run |
|---|---|
| GPU time (L40S) | US$0.00117 per GPU second |
- Billed by the GPU time the run actually takes. When the run starts, 3× the typical price is reserved from your balance and settled afterwards.
- 1 credit = US$0.01
Cost calculator
Price calculator
Typical according to the provider: about 1 s
Total
US$0.12
12 credits
Per run
US$0.0012 · 0.12 credits
Billed by the actual GPU time; this is an estimate.
API
No verified API example
The public API passes a different input format than this model needs. Use the playground above.
Specifications
- Model ID
ddcolor-colorize- Developer
- Community
- Category
- Image generation
- Input
- Text, Image
- Output
- Image
- Billing
- By usage (tokens or GPU time)
- Catalog entry updated
- September 23, 2026
Input parameters
Inputs and settings from the model's input schema. The example in the API section shows which of them the API accepts.
imagerequiredGrayscale image to colorize
Type: TextDefault: –Allowed values: –model_sizeType: ChoiceDefault:largeAllowed values: tiny or large
Tags
- colorize
- restore
- ddcolor
- old-photo
- black-and-white
Use cases
Frequently asked questions
What is DDColor?
DDColor is a model by Community in the Image generation category.
How much does DDColor cost on Railwail?
On Railwail, DDColor costs ≈ US$0.0012 per run. You are charged for what each request actually uses. Usage is paid from prepaid credits; 1 credit equals US$0.01.
Which settings does DDColor support?
According to its input schema, DDColor knows these parameters: image and model_size (tiny or large).
How fast is DDColor?
There are not enough measured runs of DDColor on Railwail yet to state a run time. It depends on the input, the settings and the load at the provider.
Is DDColor better than FLUX 1.1 Pro?
That depends on the task. DDColor (Community) and FLUX 1.1 Pro (Black Forest Labs) are both models in the Image generation category. The comparison page shows their prices and specifications side by side.
Compare DDColor and FLUX 1.1 ProCan DDColor use an image as input?
Yes. Send the image in the image parameter.
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All models through one API
One API key for every model on Railwail. Usage is charged from prepaid credits, 1 credit = US$0.01.