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zsxkib/flash-face
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FlashFace: Human Image Personalization with High-fidelity Identity Preservation
Capabilities
Negative Prompt
Seed
Cost
Community model (estimated from hardware time)
Input Parameters
| Name | Type | Description | Default | Constraints |
|---|---|---|---|---|
positive_prompt * | string | Positive prompt | — | — |
reference_face_1 * | string (uri) | Reference face image 1 | — | — |
default_negative_prompt | string | Default negative prompt postfix | "blurry, ugly, tiling, poorly drawn hands, poorly drawn feet, poorly drawn face, out of frame, extra limbs, disfigured, deformed, body out of frame, bad anatomy, watermark, signature, cut off, low contrast, underexposed, overexposed, bad art, beginner, amateur, distorted face" | — |
default_position_prompt | string | Default positive prompt postfix | "best quality, masterpiece,ultra-detailed, UHD 4K, photographic" | — |
face_bounding_box | string | Face position | "[0., 0., 0., 0.]" | — |
face_guidance | number | Reference guidance strength | 2.2 | — |
lamda_feature | number | Reference feature strength | 0.9 | — |
negative_prompt | string | Negative prompt | "nsfw" | — |
num_sample | integer | Number of generated images | 1 | — |
output_format | string | Format of the output images | "webp" | webp jpg png |
output_quality | integer | Quality of the output images, from 0 to 100. 100 is best quality, 1 is lowest quality. | 80 | min: 1, max: 100 |
reference_face_2 | string (uri) | Reference face image 2 | — | — |
reference_face_3 | string (uri) | Reference face image 3 | — | — |
reference_face_4 | string (uri) | Reference face image 4 | — | — |
seed | integer | Random seed. Leave blank to randomize the seed | — | — |
step_to_launch_face_guidance | integer | Step index to launch reference guidance | 600 | — |
steps | integer | Number of steps | 35 | — |
text_control_scale | number | Text guidance strength | 7.5 | — |
positive_prompt required string Positive prompt
reference_face_1 required string Reference face image 1
default_negative_prompt string Default negative prompt postfix
Default:
"blurry, ugly, tiling, poorly drawn hands, poorly drawn feet, poorly drawn face, out of frame, extra limbs, disfigured, deformed, body out of frame, bad anatomy, watermark, signature, cut off, low contrast, underexposed, overexposed, bad art, beginner, amateur, distorted face" default_position_prompt string Default positive prompt postfix
Default:
"best quality, masterpiece,ultra-detailed, UHD 4K, photographic" face_bounding_box string Face position
Default:
"[0., 0., 0., 0.]" face_guidance number Reference guidance strength
Default:
2.2 lamda_feature number Reference feature strength
Default:
0.9 negative_prompt string Negative prompt
Default:
"nsfw" num_sample integer Number of generated images
Default:
1 output_format string Format of the output images
Default:
"webp" webp jpg png
output_quality integer Quality of the output images, from 0 to 100. 100 is best quality, 1 is lowest quality.
Default:
80 min: 1, max: 100 reference_face_2 string Reference face image 2
reference_face_3 string Reference face image 3
reference_face_4 string Reference face image 4
seed integer Random seed. Leave blank to randomize the seed
step_to_launch_face_guidance integer Step index to launch reference guidance
Default:
600 steps integer Number of steps
Default:
35 text_control_scale number Text guidance strength
Default:
7.5 Version:
edb17f54faec Updated: 2/26/2026 5.0K runs