Image to Video · Text to Video — H3 Max Extend Video adds a text-guided continuation to an existing video. It supports prompt expansion, adjustable duration and aspect ratio, and output resolutions from 480p to 2K, returning either the full extended video or only the new footage.

≈ 44.811 kredi/sn

Ayarlar

Video Urlzorunlu

URL of the video to extend. Must be 1.625 s to 60 s long, up to 50 MB, aspect ratio between 0.4 and 2.5.

Reference Audio URLsisteğe bağlı

Optional audio references for the continuation (2–15 seconds each, 15 seconds combined). The full extended video retains its original source soundtrack, and its ending still conditions the transition. These clips guide the newly generated audio instead of using that soundtrack as an audio reference. Assign each clip a role in the prompt, such as 'Audio 1 for the voice' and 'Audio 2 for background music'.

Enable Prompt Expansionisteğe bağlı

Automatically enhance the prompt using the source video to help keep the continuation consistent. May increase processing time.

Durationisteğe bağlı

Seconds of new footage to add. The continuation clip also includes 1.625 seconds from the source's ending and may be longer because of frame rounding.

Resolutionisteğe bağlı

Output video resolution.

Aspect Ratioisteğe bağlı

Output aspect ratio. 'auto' follows the source video. Other values crop the video to fit the selected ratio.

Seedisteğe bağlı

Seed for the continuation. Random when omitted.

Outputisteğe bağlı

'extended' returns the source and new footage as one video. 'continuation' returns a clip that starts with a 1.625-second repeat of the source's ending, then shows the new footage.

Enable Safety Checkeristeğe bağlı

Moderate the source video and the prompt.

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