fal-ai/flashhead

SoulX-FlashHead is a unified 1.3B-parameter framework designed for high-fidelity, infinite-length, and real-time streaming portrait video generation.

Inference

Commercial use

Streaming

Schema

LLMs

Playground API Examples

Input

Image URL*

Hint: Drag and drop image files from your computer, images from web pages, paste from clipboard (Ctrl/Cmd+V), or provide a URL. Accepted file types: jpg, jpeg, png, webp, gif, avif

Text*

Additional Settings

Customize your input with more control.

Streaming

Result

Idle

What would you like to do next?

Download

{
  "video": {
    "url": "https://v3b.fal.media/files/b/0a91eb2a/b94FcOb0kmfpMCTgMLWaY_0c5def0a63a3413f8221fdb2a9bba6f3_final.mp4",
    "content_type": "application/octet-stream",
    "file_name": "0c5def0a63a3413f8221fdb2a9bba6f3_final.mp4",
    "file_size": 3296360
  },
  "seed": 629770517,
  "duration": 6.72,
  "timings": {
    "download_seconds": 0.619,
    "inference_seconds": 4.744,
    "prepare_seconds": 0.128,
    "generation_seconds": 3.167,
    "encode_seconds": 0.884,
    "num_chunks": 7,
    "total_frames": 168,
    "total_seconds": 4.837
  }
}

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fal-ai/flashhead

Input

Result

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Logs