Infinitetalk
An audio-driven avatar generation model that transforms a single photo or silent video into a lifelike talking or singing video with precise lip sync, natural body movement, and support for videos up to 10 minutes long.
MeiGen WaveSpeed Audio-driven lip sync for long talking videos
InfiniteTalk is an audio-driven avatar generation model developed by MeiGen-AI and hosted on WaveSpeedAI. It takes a single portrait photo or silent video paired with an audio track and produces an animated talking or singing video with synchronized lip movements, head poses, facial expressions, and body posture. Built on the Wan 2.1 video diffusion foundation, it uses a sparse-frame processing approach and a rolling 81-frame context window to maintain visual consistency across extended sequences. The model supports output videos up to 10 minutes long and offers both 480p and 720p resolution options.
InfiniteTalk is designed for content creators, marketers, educators, and developers who need to produce realistic talking-head videos at scale. It supports any language for lip synchronization and includes a two-person dialogue mode for animating back-and-forth conversations between two speakers. Common use cases include multilingual dubbing and localization, corporate training videos, virtual presenters, podcast visualization, and music video production. Its extended duration support makes it particularly suited for long-form educational content and digital human applications.
What Infinitetalk supports
Lip Sync Generation
Synchronizes lip movements to an audio track across any language, preserving natural rhythm and pronunciation throughout the video.
Portrait Animation
Animates a single portrait photo or silent video into a fully moving talking-head video, including head pose, gaze shifts, eyebrow raises, and subtle posture changes.
Long-Form Video Output
Generates continuous talking videos up to 10 minutes in length using a rolling 81-frame context window to maintain visual consistency.
Two-Person Dialogue
Animates two speakers in a realistic back-and-forth conversation within a single generated video.
Text Prompt Guidance
Accepts a text prompt input to steer style, pose, or expression while maintaining audio synchronization.
Dual Resolution Output
Supports 480p for faster processing or 720p for higher quality output, selectable via a configuration input.
Mask Region Control
Allows users to define specific regions of the image or video that should animate, leaving other areas static.
Seed Control
Accepts a seed value to enable reproducible generation outputs for consistent results across runs.
Ready to build with Infinitetalk?
Get Started FreeCommon questions about Infinitetalk
What inputs does InfiniteTalk require?
InfiniteTalk requires an image URL (portrait photo) or a silent video URL paired with an audio URL. Optional inputs include a text prompt for style guidance, a resolution selector (480p or 720p), and a seed value for reproducibility.
How long can the generated videos be?
InfiniteTalk supports video generation up to 10 minutes in length, enabled by its sparse-frame processing approach and rolling 81-frame context window.
What is the context window for this model?
InfiniteTalk has a context window of 50,000 tokens as listed in the model metadata.
Does InfiniteTalk support multiple languages for lip sync?
Yes, InfiniteTalk supports lip synchronization across any language, preserving natural rhythm and pronunciation regardless of the audio language.
When was InfiniteTalk trained?
According to the model metadata, InfiniteTalk has a training date of May 2025.
Is the source code for InfiniteTalk publicly available?
Yes, MeiGen-AI has published the InfiniteTalk source code on GitHub at github.com/MeiGen-AI/InfiniteTalk.
What people think about Infinitetalk
Community members on r/StableDiffusion responded positively to InfiniteTalk, with the thread receiving 24 upvotes and 18 comments, noting its connection to the MultiTalk team as a point of interest.
Discussion touched on its extended video length support and audio-driven animation capabilities, with users exploring it as a tool for talking-head and dialogue video generation.
Parameters & options
Image to be lip synced.
Audio to be lip synced.
Optional prompt to guide the lip sync.
The resolution of the output video.
Explore similar models
Kling AI Avatar Standard
Kling AI Avatar transforms a single portrait photo into a natural talking-head video driven by any audio track, with precise lip-sync and stable identity preservation.
ByteDance Omni Human 1.5
ByteDance's OmniHuman 1.5 transforms static images into emotionally expressive, audio-driven digital humans using cognitive simulation and multimodal AI.
HeyGen HeyGen Video Translate
HeyGen Video Translate is an AI-powered tool that automatically translates and lip-syncs videos into multiple languages with a user-friendly interface.
Google Gemini 3.1 Pro
Google's frontier reasoning model delivering enhanced software engineering, agentic reliability, and multimodal intelligence across a 1M-token context window.
OpenAI GPT‑5.2 Pro
The most capable model series yet for professional knowledge work.
Nvidia Nemotron 3 Nano 30B
NVIDIA's compact open-weight hybrid MoE model with 30B total / 3.5B active parameters, delivering strong reasoning and coding performance up to 1M context.
Start building with Infinitetalk
No API keys required. Create AI-powered workflows with Infinitetalk in minutes — free.