omnihuman-2-0
Commercial usePart of the ByteDance API family — compare all ByteDance models →

BytePlus OmniHuman 2.0 is an audio-driven AI video generation model that transforms images and audio into lifelike talking avatar videos. It supports natural lip sync, expressive facial movements, body gestures, and video generation up to 5 minutes long.

Pricing: 14 credits per second ($0.07/s), billed on the output video duration. 720P output, length follows the input audio (4–300 s). High-tier top-ups include +10% bonus credits. Effective pricing is approximately 10% lower than the above rates.
Input

Text prompt (Character Tendency). used for precise control of the scene,movements.camera movements,etc. Supported Languages: Only Chinese, English, Japanese, Korean, Spanish (Mexican), Indonesian.

0/300

Click to upload or drag and drop

Supported formats: MPEG, WAV, X-WAV Maximum file size: 15MB

Audio url. The duration [4,300] s

Click to upload or drag and drop

Supported formats: JPEG, PNG, WEBP, BMP, TIFF, GIF Maximum file size: 30MB; Maximum files: 1

Image URL. Only one image is supported. Aspect Ratio (Width/Height): [0.4,2.5]. Dimension (px): [300,6000]

Whether to enable the watermark. Default: true.

Output
output typevideo

README

Complete guide to using omnihuman-2-0

OmniHuman 2.0 API for AI Talking Avatar Videos

Integrate ByteDance OmniHuman 2.0 API to turn images and audio into lifelike talking avatar videos with natural lip sync, expressive facial movements, and realistic body gestures.

Original image

Explore OmniHuman 2.0 API Features on Kie AI

Audio-Driven Talking Avatar Generation with OmniHuman 2.0 API

Turn a single image and audio file into a realistic talking avatar video with OmniHuman 2.0 API. The model brings characters to life with natural speech, facial expressions, and body movements driven by audio. Integrate the API into your applications to create AI presenters, virtual characters, and interactive digital avatars.

Natural Lip Sync with Omni Human 2.0 Talking Avatar API

Generate talking avatar videos with lip movements that closely follow spoken words and singing. The OmniHuman 2.0 API synchronizes mouth movements with audio while maintaining natural facial motion. Build AI video tools for virtual presenters, singing avatars, and voice-driven character animations.

Expressive Facial Expressions and Body Gestures

Create lifelike performances that go beyond basic lip sync with OmniHuman 2.0 API. The model generates facial expressions, head movements, hand gestures, and body motion that respond to the rhythm and emotion of the audio. Bring more personality to AI avatars and create engaging videos for storytelling, entertainment, and digital content.

Generate Up to 5-Minute Videos with OmniHuman v2.0 API

Create longer talking avatar videos with OmniHuman 2.0 API, supporting video generation up to 300 seconds. Produce extended speeches, presentations, tutorials, and character performances without limiting every scene to a short clip. Integrate long-form AI avatar generation into your video creation workflows.

Multi-Person Animation with ByteDance OmniHuman 2.0

Animate multiple characters in a single scene using ByteDance OmniHuman 2.0. Generate conversations, interviews, and group performances with audio-driven facial expressions and natural body movements. The OmniHuman 2.0 API helps developers build AI podcast tools, virtual conversations, and interactive character experiences.

Prompt-Guided Character Animation with OmniHuman AI API

Guide character performances with text prompts alongside image and audio inputs. The OmniHuman 2.0 API lets developers describe desired actions, gestures, and scene behavior to shape the generated video. Combine audio-driven animation with prompt guidance to create more controlled talking avatar experiences for creative apps and SaaS platforms.

OmniHuman 2.0 API vs. OmniHuman 1.5 API

OmniHuman 2.0 API extends audio-driven avatar generation to videos up to 5 minutes long, making it suitable for extended presentations, singing performances, and digital human applications. OmniHuman 1.5 API supports shorter videos with up to 1080p resolution, making it a practical option for high-resolution avatar clips. Both models support lip sync, expressive gestures, and prompt-guided animation.

FeatureOmniHuman 1.5 APIOmniHuman 2.0 API
InputImage + Audio + Optional PromptImage + Audio + Optional Prompt
Audio-Driven AnimationSupportedSupported
Lip SyncSupportedSupported
Facial ExpressionsSupportedSupported
Body GesturesSupportedSupported
Multi-Person AnimationSupportedSupported
Text Prompt ControlSupportedSupported
Maximum Video DurationUnder 60 SecondsUp to 300 Seconds*
Output Resolution720p / 1080p720p*
Best ForShort, High-Resolution Avatar VideosLonger Talking Avatar Videos
OmniHuman 2.0 specifications may vary by API provider and endpoint.

How to Use OmniHuman 2.0 API on Kie AI

  • Step 1: Get Your OmniHuman 2.0 API Key

    Sign up or log in to Kie AI and generate your API key from the dashboard. Use this key to authenticate your OmniHuman 2.0 API requests and access the model through Kie AI.

  • Step 2: Prepare Your Avatar Image and Audio

    Choose a clear reference image of your character and prepare the audio you want to animate. Make sure your image and audio meet the OmniHuman 2.0 API input requirements for the best results.

  • Step 3: Send an OmniHuman v2.0 API Request

    Submit your image and audio through the OmniHuman 2.0 API, along with an optional text prompt to guide character movements. The API processes your inputs and creates a video generation task.

  • Step 4: Retrieve Your AI Talking Avatar Video

    Check your OmniHuman 2.0 API task status and retrieve the generated video when it's ready. Download the result or integrate it directly into your application, website, or AI video workflow.

Why Choose Kie AI for OmniHuman 2.0 API Integration

Simple OmniHuman 2 API Integration

Integrate OmniHuman 2.0 API into your applications with a straightforward API workflow. Kie AI simplifies access to AI video generation, allowing developers to submit requests, track generation tasks, and retrieve results. Spend less time on integration and more time building AI-powered products.

Cost-Effective OmniHuman 2.0 API Access

Access OmniHuman 2.0 API on Kie AI with transparent, usage-based pricing. Pay for the resources you use without managing complex infrastructure. Monitor generation costs and plan your API usage more easily, whether you're testing a new feature or running an AI video application.

Multiple Talking Avatar APIs in One Place

Access multiple talking avatar APIs through a single platform on Kie AI. Explore different AI avatar models, compare their capabilities, and choose the right option for your application. Manage your AI video workflows in one place without switching between multiple providers.

Reliable API Infrastructure for AI Avatar Applications

Build AI avatar applications with Kie AI's centralized API infrastructure. Submit generation requests, monitor task progress, and retrieve video results through a consistent workflow. Simplify backend development and manage AI video generation more efficiently as your application grows.

Scalable OmniHuman AI API for SaaS Products

Bring OmniHuman 2.0 API into SaaS platforms, AI video editors, and automated content creation tools. Kie AI provides API access that fits different development needs, from early prototypes to production applications. Expand your AI avatar features as user demand grows.

Clear OmniHuman 2.0 API Documentation

Get started with OmniHuman 2.0 API using Kie AI's developer documentation. Find integration instructions, request parameters, response formats, and API examples to guide your development process. Reduce setup time, troubleshoot integration issues, and bring AI talking avatar features into your products faster.

What Can You Build with OmniHuman 2.0 API

OmniHuman 2.0 API for AI Talking Avatar Apps

Integrate OmniHuman 2.0 API into talking avatar generators, virtual presenter platforms, and digital human applications. Create speaking avatars from character images and voice recordings for personalized messages, virtual assistants, and interactive experiences. Help users produce natural talking videos without filming real people.

Create AI Singing Avatar Videos

Build AI singing avatar generators using OmniHuman AI API for music creators and entertainment platforms. Turn character images and songs into animated performances for virtual singers, digital idols, and music videos. Add audio-driven singing animation to your application and help users bring their favorite characters to life.

AI UGC Video Generation for Marketing

Use OmniHuman 2.0 API to develop AI UGC video generators for advertising and marketing platforms. Create virtual spokesperson videos, product promotions, and social media ads from images and recorded scripts. Help brands produce engaging video content for different campaigns without traditional filming or production teams.

ByteDance OmniHuman 2.0 for AI Podcast Videos

Integrate ByteDance OmniHuman 2.0 into AI podcast generators, virtual interview platforms, and conversation video tools. Animate multiple characters in a single scene to create visual podcasts, interviews, and discussions. Turn audio conversations into engaging videos for social media, content platforms, and entertainment applications.

Animate Virtual Characters for Creative Apps

Use OmniHuman v2.0 API to build character animation tools for creative apps, storytelling platforms, and digital entertainment. Transform illustrations, stylized portraits, and virtual characters into animated videos with natural expressions and movements. Give creators a simple way to bring static characters into motion.

Automate Educational and Training Videos

Add OmniHuman 2 API to e-learning platforms, corporate training tools, and educational video generators. Create virtual instructors and digital presenters from character images and narrated lessons. Help educators and businesses produce course videos, onboarding materials, and instructional content without recording every presentation.

Frequently Asked Questions

OmniHuman 2.0 API is an audio-driven AI video generation API developed from ByteDance's OmniHuman 2.0 model. It turns character images and audio into talking avatar videos with synchronized lip movements, facial expressions, and body gestures. Developers can integrate OmniHuman 2.0 API through Kie AI to build AI avatar and video creation applications.

ByteDance OmniHuman 2.0 uses a reference image and an audio file to generate animated character videos. The model analyzes speech, rhythm, and audio cues to create matching lip movements, facial expressions, and body gestures. Developers can also use optional text prompts to guide character actions and performances.

OmniHuman 2.0 API supports JPEG, PNG, WebP, BMP, TIFF, GIF, and HEIC images up to 30 MB, with dimensions between 300 and 6,000 pixels per side. Audio inputs support MP3 and WAV files up to 15 MB, with durations from 4 to 300 seconds. For complete input requirements, check the Kie AI API documentation.

OmniHuman 2.0 API supports videos from 4 to 300 seconds (5 minutes), with the generated video matching the input audio duration. The model outputs videos at 720p resolution, making it suitable for extended talking avatar videos, presentations, and singing performances. For endpoint-specific limits, refer to the Kie AI API documentation.

Yes, OmniHuman 2 API supports multi-person animation, allowing developers to create videos featuring multiple characters in one scene. This makes it useful for virtual interviews, AI podcasts, and group performances. Results may depend on the reference image, audio input, and scene complexity.

OmniHuman 2.0 API supports longer videos of up to 300 seconds at 720p, making it ideal for extended talking avatar videos and character performances. OmniHuman 1.5 API focuses on shorter videos of up to 60 seconds, with support for 1080p resolution. Both models offer audio-driven animation, lip sync, facial expressions, and body gestures. Kie AI provides access to both OmniHuman 1.5 API and OmniHuman 2.0 API, allowing developers to choose the right model for their projects.

Yes. OmniHuman AI API supports optional text prompts that help guide character actions, gestures, and performance styles. Developers can combine prompts with images and audio to influence the generated animation. The final movements also depend on the audio and model interpretation.

Kie AI offers free credits to new users to get started with OmniHuman 2.0 API. Whether these credits cover your video generation depends on your input settings and the estimated credit cost. You can check the required credits before submitting a generation request.