ComfyUI Wan2.1 InfiniteTalk Workflow Example

• Audio-Driven Lip Sync: Generate natural mouth movements that match the input audio
• Full-Body Motion: Preserves identity, background, and camera movement while adding synchronized body motion
• Dual Mode: Supports both single-character and multi-character scenarios
• ComfyUI Native: Built-in WanInfiniteTalkToVideo node, no custom nodes required

• InfiniteTalk GitHub Repository
• Wan2.1 Code Repository
• Wan2.1 Model Repository

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InfiniteTalk image-to-video workflow

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Model Installation

• Wan2_1-I2V-14B-480p_fp8_e4m3fn_scaled_KJ.safetensors

• umt5_xxl_fp8_e4m3fn_scaled.safetensors

• wan2.1_infiniteTalk_single_fp16.safetensors: For single-character scenarios
• wan2.1_infiniteTalk_multi_fp16.safetensors: For multi-character scenarios

• wav2vec2-chinese-base_fp16.safetensors

• Wan2_1_VAE_bf16.safetensors

• lightx2v_I2V_14B_480p_cfg_step_distill_rank64_bf16.safetensors

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Model Storage Location

📂 ComfyUI/
├── 📂 models/
│   ├── 📂 diffusion_models/
│   │   └── Wan2_1-I2V-14B-480p_fp8_e4m3fn_scaled_KJ.safetensors
│   ├── 📂 text_encoders/
│   │   └── umt5_xxl_fp8_e4m3fn_scaled.safetensors
│   ├── 📂 model_patches/
│   │   ├── wan2.1_infiniteTalk_single_fp16.safetensors
│   │   └── wan2.1_infiniteTalk_multi_fp16.safetensors
│   ├── 📂 audio_encoders/
│   │   └── wav2vec2-chinese-base_fp16.safetensors
│   ├── 📂 vae/
│   │   └── Wan2_1_VAE_bf16.safetensors
│   └── 📂 loras/
│       └── lightx2v_I2V_14B_480p_cfg_step_distill_rank64_bf16.safetensors

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Sample Input Files

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Workflow Steps

1. Load the input image: Drag the character reference image to the Load Image node. For multi-character scenarios, use the Mask Editor to draw masks for each character.
2. Load audio tracks: Connect audio files to the Load Audio nodes (one per character).
3. Load diffusion model: Ensure the Load Diffusion Model node is using Wan2_1-I2V-14B-480p_fp8_e4m3fn_scaled_KJ.safetensors.
4. Load model patches: Load the appropriate InfiniteTalk patch (single or multi variant) via the ModelPatchLoader node.
5. Configure InfiniteTalk: Adjust the WanInfiniteTalkToVideo node parameters, such as length (video length in frames), motion_frame_count (previous frames used as motion context), and audio_scale.
6. Generate: Run the workflow. The model will produce a full-body talking video synchronized with the input audio.

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Extending Video Length

1. Box-select the “Video Extend” group
2. Press Ctrl-C (copy), then Ctrl-Shift-V (paste with connections)
3. Connect the previous InfiniteTalk (Base Generation) node’s IMAGE output to the new WanInfiniteTalkToVideo node’s previous_frames input
4. Connect the Batch Images node’s IMAGE output to the new Batch Images node’s image input