OmniHuman 1.5 API - Superb AI Avatar Generation API!
Developed by Bytedance, OmniHuman-1.5 is the ultimate audio-driven AI human avatar and talking-head video generation model. Start creating with our OmniHuman 1.5 API today!
OmniHuman 1.5 API Pricing
Pay-as-you-go access through PiAPI.
OmniHuman 1.5 API
$0.13/s
- Audio-driven avatar generation
- Full-body and talking-head videos
OmniHuman 1.5 API Features
Capabilities from the production model page.
Audio Semantics-Driven Expressive Motion
OmniHuman 1.5 excels in interpreting speech content, timing, and prosody to generate natural gestures, pauses, and body movement beyond basic lip synchronization.
Text-Guided Scene & Action Control
Our OmniHuman API allows users to explicitly direct camera motion, character actions, timing and scene elements through text instructions for AI avatar generation.
Multi-Character & Multi-Audio Scene Generation
OmniHuman 1.5 AI API animates multiple characters within a single scene, each driven by independent audio tracks and coordinated interactions.
Long-Horizon Avatar Generation
OmniHuman 1.5 AI maintains motion coherence, expressiveness, and temporal consistency in video sequences exceeding one minute.
Diverse Character Styles & Appearance
OmniHuman supports a wide range of character styles and visual identities while preserving realism and expressiveness.
Temporal Identity Preservation
With pseudo last frame identity preservation technique, OmniHuman 1.5 prevents appearance drift across frames.
Multimodal Fusion Pipeline
Our OmniHuman 1.5 API jointly processes text, audio and visual inputs through shared attention mechanisms so each modality contributes optimally to the avatar generation.
Context-Aware Emotional Performance
OmniHuman API delivers emotionally rich animation by aligning motion, expression, and timing with semantic and contextual cues from audio and text.
SOTA Performance
OmniHuman-1.5 achieves superior results over leading academic baselines by leveraging a cognitive dual-system architecture.
Get started
Create your API key
Sign up and grab an API key from the PiAPI workspace — free credits are included on sign-up.
Top up credits
Add credits on the billing page when you are ready to scale beyond the free tier.
Call the API
POST your first task following the API docs, then poll the task until the result is ready.
Iterate in the playground
Prototype prompts and settings in the the playground above before wiring them into your product.
curl -X POST 'https://api.piapi.ai/api/v1/task' \
-H 'X-API-Key: YOUR_API_KEY' \
-H 'Content-Type: application/json' \
-d '{
"model": "omni-human",
"task_type": "omni-human-1.5",
"input": {
"prompt": "A presenter speaking naturally to camera",
"image_url": "YOUR_IMAGE_URL",
"audio_url": "YOUR_AUDIO_URL",
"fast_mode": false
}
}'
# → { "task_id": "9d5a…", "status": "pending" }curl 'https://api.piapi.ai/api/v1/task/{task_id}' \
-H 'X-API-Key: YOUR_API_KEY'
# poll until status = completed
{
"data": {
"status": "completed",
"output": {
"video_url": "https://img.theapi.app/ephemeral/…"
}
}
}$ npm install -g piapi-cli $ piapi run omnihuman-1-5 \ prompt="A presenter speaking naturally to camera" \ image_url=YOUR_IMAGE_URL \ audio_url=YOUR_AUDIO_URL \ fast_mode=false ✓ Task completed! https://img.theapi.app/ephemeral/…
Want To Know More About our OmniHuman 1.5 API?
What is OmniHuman 1.5?
OmniHuman-1.5 is a powerful avatar generation model from the OmniHuman framework from BytedanceAs an upgrade from OmniHuman-1, Bytedance OmniHuman 1.5 achieves better avatar quality for your imagination. Try OmniHuman 1.5 API with PiAPI today!
What is the OmniHuman 1.5 API?
OmniHuman 1.5 API provides advanced AI-driven avatar generation capabilities, supporting high-fidelity photorealistic and stylized outputs for virtual identity and creative production pipelines.
How can I use OmniHuman?
PiAPI offers API endpoints for avatar generation. Documentation includes full API references, request examples, and usage guides.
How does OmniHuman compare to other AI video generation tools?
OmniHuman is an avatar generation model that specializes in AI avatar generation, as compared to other general-purpose video generation tools. Check out our blog comparison between OmniHuman 1.5 vs Kling AI Avatarto find out more!
Does OmniHuman 1.5 support NSFW or restricted content?
Please refer to our NSFW policyfor more information and follow the guidelines.
Is OmniHuman available?
Yes, PiAPI provides OmniHuman 1.5 API and an Omni Human 1.5 playground. Go to our OmniHuman AI video generatorto experiment with audio-driven virtual human AI avatar.
Can I control scenes or emotions via prompts?
Yes, OmniHuman 1.5 AI API allows fine control through prompts, ideal for image to lipsync tasks, while also modifying background scenes and specifying emotional tone, giving you full control over your generation. Try OmniHuman now!
More questions? See the API docs.
Our blog
OmniHuman 1.5 API
OmniHuman 1.5 API
OmniHuman 1.5 vs Kling AI Avatar: Which AI Avatar Model Performs Better in 2026?
Deep-dive comparison between OmniHuman 1.5 and Kling AI Avatar across lip-sync, expression, stability and overall avatar quality using PiAPI.
OmniHuman 1.5 API
OmniHuman 1.5 vs Kling AI Avatar: Which AI Avatar Model Performs Better in 2026?
Compare OmniHuman 1.5 and Kling AI Avatar across lip-sync accuracy, facial realism, motion stability, and avatar quality through controlled testing.