Bytedance
This page is auto-generated from model configurations. Last updated: 2026-05-20.
This reference lists all available Bytedance video generation models and their parameters. Use these parameter names when calling the Generation API.
OmniHuman 1.5
Section titled “OmniHuman 1.5”New advanced and improved human generation model. Generates video using an image of a human figure paired with an audio file.
Model ID: model_bytedance-omni-human-1-5
Capabilities: img2video
LLM Markdown: https://app.scenario.com/api/models/model_bytedance-omni-human-1-5/markdown
| Parameter | Type | Required | Default | Min | Max | Allowed Values | Description |
|---|---|---|---|---|---|---|---|
imageUrl | file | Yes | - | - | - | - | Input image containing a human subject, face or character. |
audioUrl | file | Yes | - | - | - | - | Input audio file. Audio must be under 30s long and under 5MB. |
Seedance 1 Pro
Section titled “Seedance 1 Pro”Video model tuned for stable detail and fluid motion.
Model ID: model_bytedance-seedance-1-pro
Capabilities: txt2video, img2video
LLM Markdown: https://app.scenario.com/api/models/model_bytedance-seedance-1-pro/markdown
| Parameter | Type | Required | Default | Min | Max | Allowed Values | Description |
|---|---|---|---|---|---|---|---|
prompt | string | Yes | - | - | - | - | Describe your video |
image | file | No | - | - | - | - | Image used as the first frame of the video. |
lastFrameImage | file | No | - | - | - | - | Input image for last frame generation. This only works if an image start frame is given too. |
duration | number | No | 5 | 2 | 12 | - | Duration in seconds |
resolution | string | No | 1080p | - | - | 480p, 720p, 1080p | Output video resolution |
aspectRatio | string | No | 16:9 | - | - | 9:21, 9:16, 3:4, 1:1, 4:3, 16:9, 21:9, adaptive | Aspect ratio of the video. Ignored if first frame is provided. |
cameraFixed | boolean | No | false | - | - | - | Whether to fix camera position |
seed | number | No | - | - | - | - | Use a seed for reproducible results. Leave blank to use a random seed. |
Seedance 1 Pro Fast
Section titled “Seedance 1 Pro Fast”Balanced video model tuned for fast stable detail and fluid motion.
Model ID: model_bytedance-seedance-1-pro-fast
Capabilities: txt2video, img2video
LLM Markdown: https://app.scenario.com/api/models/model_bytedance-seedance-1-pro-fast/markdown
| Parameter | Type | Required | Default | Min | Max | Allowed Values | Description |
|---|---|---|---|---|---|---|---|
prompt | string | Yes | - | - | - | - | Describe your video |
image | file | No | - | - | - | - | Image used as the first frame of the video. |
duration | number | No | 5 | 2 | 12 | - | Duration in seconds |
resolution | string | No | 1080p | - | - | 480p, 720p, 1080p | Output video resolution |
aspectRatio | string | No | 16:9 | - | - | 9:21, 9:16, 3:4, 1:1, 4:3, 16:9, 21:9, adaptive | Aspect ratio of the video. Ignored if first frame is provided. |
cameraFixed | boolean | No | false | - | - | - | Whether to fix camera position |
seed | number | No | - | - | - | - | Use a seed for reproducible results. Leave blank to use a random seed. |
Seedance 1.5 Pro
Section titled “Seedance 1.5 Pro”Generate videos with audio with Seedance 1.5 (supports start & end frame)
Model ID: model_bytedance-seedance-1-5-pro
Capabilities: txt2video, img2video
LLM Markdown: https://app.scenario.com/api/models/model_bytedance-seedance-1-5-pro/markdown
| Parameter | Type | Required | Default | Min | Max | Allowed Values | Description |
|---|---|---|---|---|---|---|---|
prompt | string | Yes | - | - | - | - | Describe your video |
image | file | No | - | - | - | - | Image used as the first frame of the video. |
lastFrameImage | file | No | - | - | - | - | Input image for last frame generation. This only works if an image start frame is given too. |
duration | number | No | 5 | 4 | 12 | - | Duration in seconds |
resolution | string | No | 720p | - | - | 480p, 720p, 1080p | Output video resolution |
aspectRatio | string | No | 16:9 | - | - | 21:9, 9:16, 3:4, 1:1, 4:3, 16:9, adaptive | Aspect ratio of the video. |
cameraFixed | boolean | No | false | - | - | - | Whether to fix camera position |
generateAudio | boolean | No | true | - | - | - | Whether to generate audio for the video |
seed | number | No | - | - | - | - | Use a seed for reproducible results. Leave blank to use a random seed. |
Seedance 2.0
Section titled “Seedance 2.0”BytePlus Seedance 2.0 video generation: text, first/last frame, or multimodal references (images, videos, optional audio).
Model ID: model_bytedance-seedance-2-0
Capabilities: txt2video, img2video, video2video
LLM Markdown: https://app.scenario.com/api/models/model_bytedance-seedance-2-0/markdown
| Parameter | Type | Required | Default | Min | Max | Allowed Values | Description |
|---|---|---|---|---|---|---|---|
prompt | string | No | - | - | - | - | Text prompt for video generation. Use ”@” such as “@image1” or “@video1” to quickly reference selected images/videos. Prompt is optional if you provide a first frame or reference images/videos. |
image | file | No | - | - | - | - | First frame image (frame mode). Mutually exclusive with reference images/videos. |
lastFrameImage | file | No | - | - | - | - | Last frame image. Only valid when a first frame image is provided. |
referenceImages | file_array | No | - | - | - | - | Reference images for multimodal mode (up to 9). Mutually exclusive with first frame. |
referenceVideos | file_array | No | - | - | - | - | Reference videos for multimodal mode (up to 3). Mutually exclusive with first frame. |
referenceAudio | file_array | No | - | - | - | - | Reference audio tracks (up to 3). Requires at least one reference image or video. |
duration | number | No | -1 | - | - | -1, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 | Duration in seconds (4–15), or Auto: with reference videos, bill at the longest reference clip length (clamped 4–15s). |
resolution | string | No | 720p | - | - | 480p, 720p, 1080p | Output video resolution |
aspectRatio | string | No | adaptive | - | - | 16:9, 4:3, 1:1, 3:4, 9:16, 21:9, adaptive | Output aspect ratio |
generateAudio | boolean | No | true | - | - | - | Whether to generate audio for the video |
seed | number | No | - | 0 | 4294967295 | - | Optional seed for reproducible results (0–4294967295). |
Seedance 2.0 Fast
Section titled “Seedance 2.0 Fast”Faster BytePlus Seedance 2.0 video generation: text, first/last frame, or multimodal references (images, videos, optional audio).
Model ID: model_bytedance-seedance-2-0-fast
Capabilities: txt2video, img2video, video2video
LLM Markdown: https://app.scenario.com/api/models/model_bytedance-seedance-2-0-fast/markdown
| Parameter | Type | Required | Default | Min | Max | Allowed Values | Description |
|---|---|---|---|---|---|---|---|
prompt | string | No | - | - | - | - | Text prompt for video generation. Use ”@” such as “@image1” or “@video1” to quickly reference selected images/videos. Prompt is optional if you provide a first frame or reference images/videos. |
image | file | No | - | - | - | - | First frame image (frame mode). Mutually exclusive with reference images/videos. |
lastFrameImage | file | No | - | - | - | - | Last frame image. Only valid when a first frame image is provided. |
referenceImages | file_array | No | - | - | - | - | Reference images for multimodal mode (up to 9). Mutually exclusive with first frame. |
referenceVideos | file_array | No | - | - | - | - | Reference videos for multimodal mode (up to 3). Mutually exclusive with first frame. |
referenceAudio | file_array | No | - | - | - | - | Reference audio tracks (up to 3). Requires at least one reference image or video. |
duration | number | No | -1 | - | - | -1, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 | Duration in seconds (4–15), or Auto: with reference videos, bill at the longest reference clip length (clamped 4–15s). |
resolution | string | No | 720p | - | - | 480p, 720p | Output video resolution |
aspectRatio | string | No | adaptive | - | - | 21:9, 16:9, 4:3, 1:1, 3:4, 9:16, adaptive | Output aspect ratio |
generateAudio | boolean | No | true | - | - | - | Whether to generate audio for the video |
seed | number | No | - | 0 | 4294967295 | - | Optional seed for reproducible results (0–4294967295). |