Wan 2.2 Speech to Video | AI Digital Human API

Wan-2.2-S2V

What is Wan-2.2-S2V?

Wan-2.2-S2V is a video model that generates high-quality videos from static images and audio, with realistic facial expressions, body movements, and professional camera work for film and television applications.

Pricing

Our endpoint starts with $0.15 per 5 seconds (480p) or $0.3 per 5 seconds (720p) video generation and supports a maximum generation length of 10 minutes.

How Wan-2.2-S2V Works

Wan-2.2-S2V leverages advanced AI technology to understand both audio signals and visual information.

Audio Analysis: Wan-2.2-S2V uses a powerful audio encoder (Wav2Vec) to understand the nuances of speech, including rhythm, tone, and pronunciation patterns.

Visual Understanding: Built on the robust Wan2.2 video diffusion model (you can visit our Wan2.2 workflow for t2v/i2v eneration), Wan-2.2-S2V understands human anatomy, facial expressions, and body movements.

Perfect Synchronization: Through sophisticated attention mechanisms, Wan-2.2-S2V learns to perfectly align lip movements with audio while maintaining natural facial expressions and body language.

Instruction Following: Unlike simpler methods, Wan-2.2-S2V can follow text prompts to control the scene, pose, and overall behavior while maintaining audio synchronization.

Wan 2.2 Speech To Video API — Quick start

Grab a WaveSpeedAI API key, then call POST https://api.wavespeed.ai/api/v3/wavespeed-ai/wan-2.2/speech-to-video 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 Wan 2.2 Speech To Video below.

HTTP example

# Submit the prediction
curl -X POST "https://api.wavespeed.ai/api/v3/wavespeed-ai/wan-2.2/speech-to-video" \
  -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",
    "prompt": "A cinematic shot of a city at sunset, soft golden light",
    "resolution": "480p",
    "seed": -1
}'

# 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("wavespeed-ai/wan-2.2/speech-to-video", {
        "image": "https://example.com/your-input.jpg",
        "audio": "https://example.com/your-audio.mp3",
        "prompt": "A cinematic shot of a city at sunset, soft golden light",
        "resolution": "480p",
        "seed": -1
});

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

Python example

# pip install wavespeed
import wavespeed

output = wavespeed.run(
    "wavespeed-ai/wan-2.2/speech-to-video",
    {
    "image": "https://example.com/your-input.jpg",
    "audio": "https://example.com/your-audio.mp3",
    "prompt": "A cinematic shot of a city at sunset, soft golden light",
    "resolution": "480p",
    "seed": -1
}
)

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

Wan 2.2 Speech To Video API — Frequently asked questions

What is the Wan 2.2 Speech To Video API?

Wan 2.2 Speech To Video is a WaveSpeedAI model for talking-avatar generation, exposed as a REST API on WaveSpeedAI. Wan-2.2-S2V turns images and speech into high-fidelity videos with realistic face and body motion; supports up to 10-minute clips in 480p, from $0.15/5s. Ready-to-use REST API, no coldstarts, affordable pricing. You can call it programmatically or try it from the playground above.

How do I call the Wan 2.2 Speech To Video 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/wavespeed-ai/wan-2.2-speech-to-video.

How much does Wan 2.2 Speech To Video cost per run?

Wan 2.2 Speech To Video starts at $0.15 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 Wan 2.2 Speech To Video accept?

Key inputs: `prompt`, `image`, `audio`, `resolution`, `seed`. 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/wavespeed-ai/wan-2.2-speech-to-video.

How long does Wan 2.2 Speech To Video take to generate?

Average end-to-end generation time on WaveSpeedAI is around 416 seconds per request — measured across recent runs. Queue time scales with global demand; live status is visible in the prediction record.

Can I use Wan 2.2 Speech To Video outputs commercially?

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

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