OmniHuman 1.5: AI Lipsync

Create talking-head videos with Muapi OmniHuman 1.5. Animate a portrait with audio, natural expressions, and lip sync, then retrieve the result by API.

Interactive model controls

Generate realistic talking head video from portrait image and audio using OmniHuman 1.5.

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Overview

About this model

OmniHuman 1.5 is a state-of-the-art lipsync and talking head model that animates a portrait image using an input audio track. It achieves high fidelity, realistic lip-syncing, natural facial expressions, and fluid head movements to create realistic speaking or singing videos.

1Digital Avatars: Create realistic talking avatars for virtual presentations and customer engagement.

2Entertainment: Animate portrait photos and artwork to sing or speak with natural lip sync.

3Social Media: Generate engaging video clips with animated characters matching voiceovers.

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Pricing & Value

Cost analysis

Provider	Cost	Notes
muapiapp	$0.045/sec (720p) / $0.060/sec (1080p)	Dynamic per-second billing based on audio duration (5s to 60s).
Fal.ai	Not available	Not available
Replicate	Not available	Not available

muapiapp$0.045/sec (720p) / $0.060/sec (1080p)

Dynamic per-second billing based on audio duration (5s to 60s).

Fal.aiNot available

Not available

ReplicateNot available

Not available

** Competitor pricing is estimated based on similar model architectures and usage tiers.

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Technical Details

Configuration schema

Parameter	Type	Description	Default
Prompt	string	Optional prompt to guide lipsync style.	`Make her sing confidently into a microphone with natural lip sync`
Image URL	string	URL of the input portrait image.	`https://cdn.muapi.ai/assets/omnihuman-1-5.jpg`
Audio URL	string	URL of the input audio track.	`https://cdn.muapi.ai/assets/omnihuman-1-5.mp3`
Output Resolution	Enum (2 options)	Output video resolution.	`1080`
Fast Mode	boolean	Enable fast generation mode.	`false`

Promptstring

Optional prompt to guide lipsync style.

Default ValueMake her sing confidently into a microphone with natural lip sync

Image URLstring

URL of the input portrait image.

Default Valuehttps://cdn.muapi.ai/assets/omnihuman-1-5.jpg

Audio URLstring

URL of the input audio track.

Default Valuehttps://cdn.muapi.ai/assets/omnihuman-1-5.mp3

Output ResolutionEnum (2 options)

Output video resolution.

Default Value1080

Fast Modeboolean

Enable fast generation mode.

Default Valuefalse

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Implementation Guide

Developer documentation

How to Use OmniHuman 1.5

Prepare Your Inputs:
- Image URL: Select a clear, high-quality portrait image. Upload or provide its URL.
- Audio URL: Provide an audio file containing the speech or song that will drive the avatar's lip-sync.
Configure Parameters:
- Prompt: Optionally add a prompt to guide the style of the lip sync (e.g., 'Make her sing confidently with natural lip sync').
- Output Resolution: Choose between 720p or 1080p. The default is 1080p.
- Fast Mode: Enable fast generation mode (pe_fast_mode) for quicker iterations.
- Seed: Use a custom seed for reproducible results, or set to -1 for random.
Submit Your Request:
- Send your prepared inputs to the omnihuman-1-5 endpoint as defined in the technical schema.
Receive and Review the Output:
- Once processing completes, retrieve the output video URL. Review the generated animation and iterate as needed.

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Common Questions

Frequently asked

What is the maximum duration of generation?

The generation duration is determined by the input audio track length, with a minimum of 5 seconds and a maximum of 60 seconds.

What parameters are required?

Both `image_url` and `audio_url` are mandatory parameters to generate a talking head video.

How is the credit cost calculated?

Cost is calculated dynamically per second of the input audio's duration: $0.045 per second for 720p resolution and $0.06 per second for 1080p resolution.