Sourceful Models

Every model that bild offers from Sourceful (provider ID sourceful, API key variable SOURCEFUL_API_KEY), with every option each model accepts and the constraints the model declares. An option the provider requires opens with Required.; every other option is optional. bild info sourceful/<model> prints the same facts for the binary you run. What the constraints mean is described in Parameter adjustment, the flags in Generation flags, and how to name a model in Model specifiers.

4 image models, 0 video models.

Contents

Riverflow 2.5 Pro

Name Medium Aliases Full ID
Riverflow 2.5 Pro image riverflow, riverflow-v2.5-pro, riverflow-pro sourceful/riverflow-2.5-pro
Option Constraints
--aspect-ratio Allowed values: auto, 21:9, 16:9, 3:2, 4:3, 5:4, 1:1, 4:5, 3:4, 2:3, 9:16
--resolution Allowed values: 1K, 2K, 4K
--output-format Allowed values: webp, png, jpg, jpeg
--thinking-level Allowed values: low, medium, high, xhigh
--input-media Repeat maximum: 10
--background Allowed values: original, transparent
--prompt-upsampling

Riverflow 2.5 Fast

Name Medium Aliases Full ID
Riverflow 2.5 Fast image riverflow-v2.5-fast sourceful/riverflow-2.5-fast
Option Constraints
--aspect-ratio Allowed values: auto, 21:9, 16:9, 3:2, 4:3, 5:4, 1:1, 4:5, 3:4, 2:3, 9:16
--resolution Allowed values: 1K, 2K, 4K
--output-format Allowed values: webp, png, jpg, jpeg
--thinking-level Allowed values: low, medium, high, xhigh
--input-media Repeat maximum: 10
--background Allowed values: original, transparent
--prompt-upsampling

Riverflow 2 Fast

Name Medium Aliases Full ID
Riverflow 2 Fast image none sourceful/riverflow-2-fast

Generate images from text or edit reference images using Riverflow 2 Fast.

Option Constraints
--aspect-ratio Allowed values: auto, 21:9, 16:9, 3:2, 4:3, 5:4, 1:1, 4:5, 3:4, 2:3, 9:16; Use auto to infer the ratio from the prompt or reference image. The direct API documents 1:1 as its default.
--resolution Allowed values: 1K, 2K; Fast supports 1K and 2K only. The shared API schema also lists 4K, but the direct Fast API rejects it; 4K is supported by Pro.
--input-media Repeat maximum: 4; Accepts local images or public HTTPS image URLs, preserving their order. Local images are sent as data URIs; URL inputs remain URLs. Excess references are omitted with a notice. Frame prefixes are removed with a notice. Fast accepts four references, although the shared API schema allows ten. The direct API enforces four, matching Sourceful's model-specific documentation. Sourceful documents a 4.5 MB request-body limit, but Fast accepted approximately 5.5 MB and 22 MB requests on 2026-10-05. The actual maximum is unverified. Bildomat forwards the request and reports any provider refusal; public URLs avoid embedding large image data.
--prompt-upsampling When enabled, the API enhances the prompt using use-case context. The API default is false. Prompts must contain at least two characters; the direct API documentation says text beyond 24000 characters is truncated before processing.

Riverflow 2 Pro

Name Medium Aliases Full ID
Riverflow 2 Pro image none sourceful/riverflow-2-pro

Generate images from text or edit reference images using Riverflow 2 Pro.

Option Constraints
--aspect-ratio Allowed values: auto, 21:9, 16:9, 3:2, 4:3, 5:4, 1:1, 4:5, 3:4, 2:3, 9:16; Use auto to infer the ratio from the prompt or reference image. The direct API documents 1:1 as its default.
--resolution Allowed values: 1K, 2K, 4K; Pro supports 1K, 2K, and 4K.
--input-media Repeat maximum: 10; Accepts local images or public HTTPS image URLs, preserving their order. Local images are sent as data URIs; URL inputs remain URLs. Excess references are omitted with a notice. Frame prefixes are removed with a notice. Pro accepts ten references. Sourceful documents a 4.5 MB request-body limit and recommends URLs for large images. Bildomat forwards the request and reports any provider refusal; Pro's actual maximum request size has not been verified.
--prompt-upsampling When enabled, the API enhances the prompt using use-case context. The API default is false. Prompts must contain at least two characters; the direct API documentation says text beyond 24000 characters is truncated before processing.

Bildomat 0.0.7Revised 2026-10-06