V6 long duration (10-50 seconds) One-click replacement of characters in the video Role replacement animate E-commerce Short video

When importing videos, the duration must be greater than or equal to 10 seconds (an error will occur if it is less than 10 seconds). For videos shorter than 10 seconds, please use this program: https://www.runninghub.cn/ai detail/1969616760196526081

This program maintains high quality even for longer durations (unlike other AI programs where quality gradually deteriorates for long videos) and is less prone to GPU errors (out of memory).

Fan benefits: Click on the avatar in the upper right corner, enter the invitation code under the "Invitation Code" section, and receive 1000 RH coins. Logging in daily will also grant 100 coins, which can be used to generate many images and videos for free!

Invitation code: s0cwskom
For any issues, you can add on WeChat: ai_88183

2025.12.22 Fixed occasional frame-skipping issues. Now the generated videos run smoothly.

This algorithm does not require setting the video duration. The duration of the generated video will match the duration of the uploaded video.

If your video has watermarks or subtitles, you can first use this program to remove watermarks or subtitles (https://www.runninghub.cn/ai detail/2002757601127460866)

This program does not include a lip-syncing function. If you need lip-syncing, please refer to this: (using the original audio for lip-syncing): https://www.runninghub.cn/ai detail/1977634608437174274

                                                                                        (upload new audio for lip-syncing): https://www.runninghub.cn/ai detail/1985594157488123905

For long videos such as e-commerce promotional videos, you can first use this character replacement program to replace the characters, and then use the audio replacement lip-syncing program to adjust the lip movements (https://www.runninghub.cn/ai detail/1990665758193704961)

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(comfyui integrated package) Quark Cloud Disk shared file: https://pan.quark.cn/s/b84394c36c8d

This algorithm requires a 48G GPU (PLUS). With a 48G GPU, it usually takes 1 minute to generate 1 second of video. If your membership's single task duration is 40 or 60 minutes, you can generate 750 seconds of video at once. (This is because the first run leaves cache data, making subsequent runs much faster.)

(If you have purchased exclusive GPU membership (3-hour task duration), you can generate 180 seconds of video at once.)

The initial resolution of this application is 576*1024. Do not compare the speed with those applications that start with lower resolutions like 480*848.

If you want the generated video to have the same movements and expressions as the original video, the frame rate needs to match the original video's frame rate (Douyin videos usually have a frame rate of 30). However, a higher frame rate will slow down the generation speed. The video frame rate can be set between 20 and 30.

The proportion of characters in the video and in the images should be similar to achieve better video effects.

Default vertical aspect ratio: 576*1024, default horizontal aspect ratio for 16:9 is 1024*576 (values must be multiples of 16, otherwise errors may occur, e.g., 576*1024, 720*1280).

Members can set videos to be watermark-free by going to the Member Center — scroll down to find Watermark Management — Watermark Settings — No Watermark.

How to use: Upload videos or images (sometimes you need to set video duration or provide brief prompts), and you can start using it.