Introducing WaveSpeedAI InfiniteTalk Multi on WaveSpeedAI

Introducing InfiniteTalk Multi: Create Multi-Character Talking Videos from a Single Image

The future of AI-driven video content has taken a major leap forward. We’re excited to announce that InfiniteTalk Multi is now available on WaveSpeedAI—a groundbreaking model that transforms a single image and two audio inputs into realistic multi-character talking or singing videos at up to 720p resolution.

Whether you’re creating podcast visuals, e-learning content, marketing campaigns, or digital storytelling experiences, InfiniteTalk Multi opens up possibilities that were previously impossible without expensive video production. Now you can bring two-person conversations to life from just a photograph.

What is InfiniteTalk Multi?

InfiniteTalk Multi is an advanced audio-driven video generation model developed by MeiGen-AI. Built on the robust Wan 2.1 video diffusion model, it benefits from deep visual understanding of human anatomy, facial expressions, and body movements—resulting in remarkably realistic and consistent talking avatars.

Unlike traditional lip-sync tools that focus only on mouth movements, InfiniteTalk Multi employs a novel sparse-frame video dubbing framework. This approach strategically preserves reference keyframes to maintain identity, iconic gestures, and camera trajectories while enabling holistic, audio-synchronized full-body motion editing.

The model supports unlimited video duration—up to 10 minutes per generation—with consistent identity preservation throughout. This means your characters maintain their appearance and style across the entire video, no matter how long the conversation.

Key Features

• Accurate Lip Synchronization: Aligns lip motion precisely with audio input, preserving natural rhythm and pronunciation for both characters

• Full-Body Coherence: Captures head movements, facial expressions, and posture changes beyond just the lips—creating natural, lifelike motion

• Dual-Character Support: Process two separate audio tracks for two distinct speakers in a single image

• Identity Preservation: Maintains consistent facial identity and visual style across all frames for both characters

• Flexible Speaking Order: Choose from left-to-right, right-to-left, or simultaneous speaking patterns

• Resolution Options: Generate videos in 480p or 720p resolution

• Prompt Guidance: Accept text prompts to control scene, pose, or behavior while syncing to audio

• Extended Duration: Support for videos up to 10 minutes long with stable output quality

Real-World Use Cases

Marketing and Advertising

Transform static promotional images into dynamic conversational ads. Imagine a photo of two brand ambassadors coming to life to discuss your latest product launch. AI lip-sync technology is already reshaping marketing by making content more interactive and memorable—InfiniteTalk Multi takes this further by enabling two-person dialogues.

E-Learning and Training

Create engaging educational content where instructors or characters discuss concepts naturally. Multilingual training becomes straightforward: translate your audio tracks and regenerate the video with synchronized lip movements in any language. Studies show that learners retain information better when content features natural, conversational delivery.

Podcast Visualization

Give your audio-only podcast a visual component without the complexity of video production. Upload a photo of your co-hosts and their audio tracks, and InfiniteTalk Multi generates a synchronized video perfect for YouTube or social media clips.

Digital Storytelling

Bring illustrated storyboards to life. Authors, animators, and content creators can transform character illustrations into speaking videos—ideal for book trailers, web series pilots, or interactive narratives.

Customer Communication

Create personalized video messages featuring digital representatives. Scale your customer success and sales outreach with videos that feel personal and authentic, without requiring your team to record individually for each prospect.

Social Media Content

Generate engaging short-form content for platforms like TikTok, Instagram Reels, or YouTube Shorts. Create character dialogues, reaction videos, or comedy sketches starting from a single image.

Getting Started on WaveSpeedAI

Getting started with InfiniteTalk Multi on WaveSpeedAI is straightforward:

1. Prepare Your Assets: Upload a single image clearly showing two people, plus two separate audio files (one for each character)

2. Configure Your Generation: Select the speaking order (left-to-right, right-to-left, or meanwhile) and choose your resolution (480p or 720p)

3. Add Prompts (Optional): Include text prompts to guide scene behavior, poses, or expressions

4. Generate: Submit your job and download the results once processing completes

Processing typically takes 10–30 seconds of wall time per 1 second of video, depending on resolution and queue load.

Pricing That Scales With You

WaveSpeedAI offers transparent, predictable pricing:

Resolution	Cost per 5 Seconds	Maximum Length
480p	$0.15	10 minutes
720p	$0.30	10 minutes

All videos are billed for a minimum of 5 seconds, with billing capped at 600 seconds (10 minutes) to keep costs predictable.

Why WaveSpeedAI?

• No Cold Starts: Your generations begin immediately—no waiting for infrastructure to spin up
• Optimized Performance: Our infrastructure is tuned for maximum throughput and minimal latency
• Simple REST API: Easy integration into your existing workflows and applications
• Affordable Pricing: Pay only for what you generate, with no hidden fees or subscriptions required

More InfiniteTalk Versions

InfiniteTalk Multi is part of a family of models available on WaveSpeedAI:

• InfiniteTalk (Single Character): For single-speaker image-to-video generation
• InfiniteTalk Video-to-Video: Transform existing videos with new audio dubbing

Choose the version that fits your specific use case.

Start Creating Today

InfiniteTalk Multi represents a significant advancement in AI video generation, making multi-character conversational videos accessible to creators, marketers, and developers of all sizes. What once required professional video production, actors, and expensive post-production can now be accomplished with a single image and two audio files.

Ready to bring your conversations to life? Visit InfiniteTalk Multi on WaveSpeedAI to start generating multi-character talking videos today. Whether you’re building the next viral marketing campaign, scaling your e-learning platform, or creating compelling digital narratives—InfiniteTalk Multi gives you the tools to make it happen.