Upload a single character image and a driving video — the model transfers facial expressions and head movements from the video onto your image, bringing it to life. It works with photos, illustrations, or stylized portraits, making them speak, blink, and move naturally. Ideal for avatars, AI presenters, digital actors, and story scenes.
About this model
Runway-Act-Two-i2v is an innovative AI-powered solution that transforms a static character image into a dynamic video performance by transferring facial expressions and head movements from a reference video. Leveraging advanced machine learning techniques, this model seamlessly integrates the essence of your chosen performance with the visual aesthetics of your submitted image, whether it's a photograph, illustration, or stylized portrait. The technology behind this system ensures that every nuance—from a subtle blink to a lively head nod—is captured with remarkable precision, thus breathing life into digital avatars and characters.
Designed for both technical experts and creative professionals, the model offers a robust and user-friendly interface with precise input parameters and flexible aspect ratios. Its competitive cost of only $0.07 per generation makes it an ideal choice for applications ranging from AI presenters and digital actors to engaging story scenes and interactive avatars, ensuring superior quality animation at a cost-effective price point.
Cost analysis
| Provider | Cost | Notes |
|---|---|---|
| muapiapp | $0.07 per generation | muapiapp is 20-50% more affordable than its competitors while delivering comparable or superior quality. |
| Fal.ai | $0.09 per generation | muapiapp offers a cost advantage of 20-50% over Fal.ai, making it a more budget-friendly option without compromising on quality. |
| Replicate | $0.09 per generation | With muapiapp, you benefit from a 20-50% lower cost compared to Replicate, ensuring excellent value for high-quality video generation. |
muapiapp is 20-50% more affordable than its competitors while delivering comparable or superior quality.
muapiapp offers a cost advantage of 20-50% over Fal.ai, making it a more budget-friendly option without compromising on quality.
With muapiapp, you benefit from a 20-50% lower cost compared to Replicate, ensuring excellent value for high-quality video generation.
* Competitor pricing is estimated based on similar model architectures and usage tiers.
Configuration schema
| Parameter | Type | Description | Default |
|---|---|---|---|
| Image URL | string | URL of the input image. An image of your character. In the output, the character will use the reference video performance in its original static environment. | https://d3adwkbyhxyrtq.cloudfront.net/ai-images/186/370295463570/85f21c1c-69cc-4786-92b3-1a2c95a6737e.jpg |
| Reference Video URL | string | A video URL pointing to a video of a person performing in the manner that you would like your character to perform. | https://d3adwkbyhxyrtq.cloudfront.net/videos/186/703170005884/a024ec71-10b5-4d41-ab84-2055fb3f14b3.mp4 |
| Aspect Ratio | Enum (6 options) | Aspect ratio of the output video. | 16:9 |
URL of the input image. An image of your character. In the output, the character will use the reference video performance in its original static environment.
https://d3adwkbyhxyrtq.cloudfront.net/ai-images/186/370295463570/85f21c1c-69cc-4786-92b3-1a2c95a6737e.jpgA video URL pointing to a video of a person performing in the manner that you would like your character to perform.
https://d3adwkbyhxyrtq.cloudfront.net/videos/186/703170005884/a024ec71-10b5-4d41-ab84-2055fb3f14b3.mp4Aspect ratio of the output video.
16:9Developer documentation
Prepare Your Image and Video:
Input Your Data:
Generate the Video:
runway-act-two-i2v).Review and Refine:
Utilize the Output:
Enjoy bringing your characters to life with Runway-Act-Two-i2v!
Frequently asked
The model is optimized for images featuring a single character. It works exceptionally well with photos, illustrations, and stylized portraits. For best results, use a clear and high-resolution image where the subject’s face is prominently visible.
The reference video serves as a performance guide by providing facial expressions and head movements. These dynamics are transferred onto the input image, resulting in a natural and lifelike animated video that mirrors the original performance.
Yes, you can select from multiple aspect ratios including 16:9, 9:16, 1:1, 4:3, 3:4, and 21:9. The default setting is 16:9, but the flexibility allows you to tailor the output to your specific display requirements.