Avatar Omni Human

Transform any portrait into a realistic talking avatar with Avatar Omni Human. Simply upload a photo and an audio clip, and watch the subject come to life with perfectly synchronized lip movements, natural expressions, and lifelike head motion — ideal for virtual presenters, digital content, and personalized video messages.

Why It Looks Great

Realistic lip sync: Advanced audio analysis ensures precise mouth movements matching every syllable.
Natural expressions: Generates authentic facial expressions and subtle head movements.
Simple workflow: Just two inputs — an image and audio — for complete avatar generation.
High fidelity: Preserves the original portrait's likeness and quality.
Versatile audio support: Works with speech, singing, and various audio types.

Parameters

Parameter	Required	Description
image	Yes	Portrait image of the person to animate (upload or public URL).
audio	Yes	Audio file for lip synchronization (upload or public URL).
enable_base64_output	No	API only: Returns base64 string instead of URL.

How to Use

Upload your image — drag and drop a clear portrait photo or paste a public URL.
Upload your audio — add the speech or audio you want the avatar to perform.
Run — click the button to generate.
Download — preview and save your talking avatar video.

Pricing

Per-second billing based on audio duration.

Metric	Cost
Per second	$0.12

Examples

Audio Length	Calculation	Total Cost
5s	5 × $0.12	$0.60
15s	15 × $0.12	$1.80
30s	30 × $0.12	$3.60
1m (60s)	60 × $0.12	$7.20
5m (300s)	300 × $0.12	$36.00

Best Use Cases

Virtual Presenters — Create AI spokespeople for videos, presentations, and training content.
Personalized Messages — Generate custom video messages from a single photo.
Content Localization — Dub content into different languages with matching lip movements.
Social Media Content — Produce engaging talking-head videos without filming.
E-learning & Training — Create instructor-led content from static presenter images.
Digital Avatars — Bring character portraits and illustrations to life with speech.

Pro Tips for Best Results

Use clear, front-facing portrait photos with good lighting for best lip sync accuracy.
Ensure the face is clearly visible and not obscured by hair, accessories, or shadows.
High-quality audio with minimal background noise produces more accurate synchronization.
Neutral or slightly open mouth expressions in the source image work best.
The subject's face should be a reasonable size in the frame — not too small or cropped.
Test with shorter audio clips first before processing longer content.

Notes

If using URLs for image or audio, ensure they are publicly accessible.
The enable_base64_output option is only available through the API.
Processing time scales with audio duration.
Best results come from portrait-style images with clear facial features.
Works with various audio formats — speech, narration, singing, and more.

Avatar Omni Human API — Quick start

Grab a WaveSpeedAI API key, then call POST https://api.wavespeed.ai/api/v3/bytedance/avatar-omni-human with your input as JSON. The endpoint returns a prediction id; poll the prediction endpoint until status flips to completed, then read the output URL from data.outputs[0]. Examples for Avatar Omni Human below.

HTTP example

# Submit the prediction
curl -X POST "https://api.wavespeed.ai/api/v3/bytedance/avatar-omni-human" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $WAVESPEED_API_KEY" \
  -d '{
    "image": "https://example.com/your-input.jpg",
    "audio": "https://example.com/your-audio.mp3",
    "enable_base64_output": false
}'

# Response includes a prediction id. Poll for the result:
curl -X GET "https://api.wavespeed.ai/api/v3/predictions/{request_id}/result" \
  -H "Authorization: Bearer $WAVESPEED_API_KEY"

# When status is "completed", read the output from data.outputs[0].

Node.js example

// npm install wavespeed
const WaveSpeed = require('wavespeed');

const client = new WaveSpeed(); // reads WAVESPEED_API_KEY from env

const result = await client.run("bytedance/avatar-omni-human", {
        "image": "https://example.com/your-input.jpg",
        "audio": "https://example.com/your-audio.mp3",
        "enable_base64_output": false
});

console.log(result.outputs[0]); // → URL of the generated output

Python example

# pip install wavespeed
import wavespeed

output = wavespeed.run(
    "bytedance/avatar-omni-human",
    {
    "image": "https://example.com/your-input.jpg",
    "audio": "https://example.com/your-audio.mp3",
    "enable_base64_output": false
}
)

print(output["outputs"][0])  # → URL of the generated output

Avatar Omni Human API — Frequently asked questions

What is the Avatar Omni Human API?

Avatar Omni Human is a ByteDance model for talking-avatar generation, exposed as a REST API on WaveSpeedAI. OmniHuman turns a single portrait photo into avatar video with lifelike motion and expressions ($0.12/sec). Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing. You can call it programmatically or try it from the playground above.

How do I call the Avatar Omni Human API?

POST your input parameters to the model's REST endpoint (shown in the API tab of this playground) with your WaveSpeedAI API key in the Authorization header. Submission returns a prediction ID; poll the prediction endpoint until status flips to "completed", then read the output URL from the result. The playground generates a ready-to-paste code sample in Python, JavaScript, or cURL for whatever inputs you've set. Full request/response shape is documented at https://wavespeed.ai/docs/docs-api/bytedance/bytedance-avatar-omni-human.

How much does Avatar Omni Human cost per run?

Avatar Omni Human starts at $0.12 per run. That figure is the base price — the final charge scales with the parameters you set in the form (output size, length, count, references, or whatever knobs this model exposes), so a higher-quality or larger output costs more than a minimal one. The exact cost for your current input is shown live next to the Generate button before you submit, and the actual per-call charge is recorded on the prediction afterwards.

What inputs does Avatar Omni Human accept?

Key inputs: `image`, `audio`, `enable_base64_output`. The full JSON schema (types, defaults, allowed values) is rendered above the Generate button and mirrored in the API reference at https://wavespeed.ai/docs/docs-api/bytedance/bytedance-avatar-omni-human.

How long does Avatar Omni Human take to generate?

Average end-to-end generation time on WaveSpeedAI is around 64 seconds per request — measured across recent runs. Queue time scales with global demand; live status is visible in the prediction record.

Can I use Avatar Omni Human outputs commercially?

Commercial usage rights depend on the model's license, set by its provider (ByteDance). The license summary appears on the model card above; see WaveSpeedAI's Terms of Service for platform-level conditions.

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