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GENERATION API CALLS
Video Generation
Sync Labs

Sync Labs

This page is auto-generated from model configurations. Last updated: 2026-07-01.

This reference lists all available Sync Labs video generation models and their parameters. Use these parameter names when calling the Generation API.

Sync Lipsync React-1

Section titled “Sync Lipsync React-1”

Use React-1 from SyncLabs to refine human emotions and do realistic lip-sync without losing details!

Model ID: model_sync-lipsync-react-1

Capabilities: video2video

LLM Markdown: https://app.scenario.com/api/models/model_sync-lipsync-react-1/markdown

Parameter Type Required Default Min Max Allowed Values Description
video file Yes - - - - Input video file
audio file Yes - - - - Input audio file. Maximum duration is 15 seconds.
emotion string No neutral - - happy, angry, sad, neutral, disgusted, surprised Emotion prompt for the generation.
modelMode string No face - - lips, face, head Controls the edit region and movement scope for the model. Available options: “lips”: Only lipsync using react-1 (minimal facial changes). “face”: Lipsync + facial expressions without head movements. “head”: Lipsync + facial expressions + natural talking head movements.
lipsyncMode string No bounce - - loop, bounce, cut_off, silence, remap Lipsync mode when audio and video durations are out of sync.
temperature number No 0.5 0 1 - How expressive lipsync can be (0-1)

Sync Lipsync v2

Section titled “Sync Lipsync v2”

Model ID: model_sync-lipsync-v2

Capabilities: video2video

LLM Markdown: https://app.scenario.com/api/models/model_sync-lipsync-v2/markdown

Parameter Type Required Default Min Max Allowed Values Description
video file Yes - - - - Input video file
audio file Yes - - - - Input audio file
syncMode string No loop - - loop, bounce, cut_off, silence, remap Lipsync mode when audio and video durations are out of sync
temperature number No 0.5 0 1 - How expressive lipsync can be (0-1)

SYNC Lipsync v2 Pro

Section titled “SYNC Lipsync v2 Pro”

Model ID: model_sync-lipsync-v2-pro

Capabilities: video2video

LLM Markdown: https://app.scenario.com/api/models/model_sync-lipsync-v2-pro/markdown

Parameter Type Required Default Min Max Allowed Values Description
video file Yes - - - - Input video file
audio file Yes - - - - Input audio file
syncMode string No loop - - loop, bounce, cut_off, silence, remap Lipsync mode when audio and video durations are out of sync
temperature number No 0.5 0 1 - How expressive lipsync can be (0-1)
activeSpeaker boolean No false - - - Whether to detect active speaker (i.e. whoever is speaking in the clip will be used for lipsync)

Sync-3 Avatar Image to Video

Section titled “Sync-3 Avatar Image to Video”

Animate a still image into a talking character video that lip-syncs to a provided audio track.

Model ID: model_sync-lipsync-v3-image-to-video

Capabilities: img2video

LLM Markdown: https://app.scenario.com/api/models/model_sync-lipsync-v3-image-to-video/markdown

Parameter Type Required Default Min Max Allowed Values Description
image file Yes - - - - A photo of the character or person to bring to life. Their mouth is animated to match the audio.
audio file Yes - - - - The voice or speech track to lip-sync to. The video is the same length as this audio.

Sync-3 Lipsync

Section titled “Sync-3 Lipsync”

Sync-3 lipsync model for professional-quality video lip synchronization.

Model ID: model_sync-lipsync-v3

Capabilities: video2video

LLM Markdown: https://app.scenario.com/api/models/model_sync-lipsync-v3/markdown

Parameter Type Required Default Min Max Allowed Values Description
video file Yes - - - - Input video file.
audio file Yes - - - - Input audio file.
syncMode string No cut_off - - cut_off, loop, bounce, silence, remap Lipsync mode when audio and video durations are out of sync.