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H3 Video Extend is part of the MiniMax H3 family.

MiniMax

H3 Video Extend: AI video extension

Continue a video from its last frame with a new segment and native audio. 480p or 768p, 3 to 15 seconds.

$0.25 for a 5 second clip at 480p. Video is paid per clip from your wallet, no subscription. The studio shows the price before you pay, and top ups start at $5.

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Key features

H3 Video Extend turns a video you already have into video inside Enhance AI. It produces clips from 3 to 15 seconds at a resolution you choose, 480p by default. H3 Video Extend is built by MiniMax. On Enhance AI it runs on the same account as every other model, with no separate subscription.

Clip length

H3 Video Extend renders clips from 3 to 15 seconds, and you pick the length before you render. Longer clips cost more because video is billed by length, so rough out an idea short and only render the full length once the shot works.

Resolution

Choose 480p or 768p before you render. A lower resolution costs less, so test a prompt low and rerender the keeper at the top setting. The studio shows the price for the setting you picked before anything is charged.

Input modes

Upload a video you already have and H3 Video Extend continues it from the last frame, so the new segment matches the light, the framing and the motion of the original. Describe what should happen next and the model carries the shot forward without a visible join.

Audio

H3 Video Extend can generate sound with the picture, so the clip arrives with audio that matches what is on screen rather than silence you have to fill later. You can still mute it and lay your own voice or music track over the top in any editor.

Specifications

Provider: MiniMax
Price: $0.25 for a 5 second clip at 480p
Type: Video
Resolution: 480p by default
Duration: 3 to 15 seconds

How to use H3 Video Extend on Enhance AI

1
Sign in and pick H3 Video Extend
Press Try on this page to open the Video Studio with H3 Video Extend selected. Video is paid per clip from your wallet, which starts empty, so top it up first.
2
Upload the clip and say what happens next
Upload the video you want to continue and describe the next beat in plain words, using the same terms as the original prompt so the extension stays consistent. Then pick a length from 3 to 15 seconds and a resolution.
3
Generate, then download
Press Generate. You see the price before you confirm, and the clip lands in your history, ready to download.

Common questions

What is H3 Video Extend?: H3 Video Extend is a video extension model from MiniMax. It turns a video you already have into video: 15 second clips at 768p with native audio.
What do I need to upload to use H3 Video Extend?: A video and a written prompt. Add them in the studio on Enhance AI, check the preview and render. The output lands in your history, ready to download or to pass to another model on the same account.
How long can a H3 Video Extend clip be?: H3 Video Extend produces clips from 3 to 15 seconds. Longer runs cost more, because video is billed by length rather than by generation.
What resolution does H3 Video Extend output?: H3 Video Extend renders at 480p or 768p. You pick the resolution before you render, and a lower one costs less.
Does H3 Video Extend generate audio?: Yes. H3 Video Extend can generate sound with the picture, so the clip arrives with audio rather than silence. Mute it and lay your own track over the top if you prefer.
Is H3 Video Extend free to try?: No. Video on Enhance AI is paid per clip from your wallet, and a new account starts with an empty wallet, so there are no free H3 Video Extend clips. The free tokens you get on signup, with no card needed, pay for image and audio tools, not video. Wallet top ups start at $5.
What does it cost to run H3 Video Extend?: It costs $0.25 for a 5 second clip at 480p. H3 Video Extend renders are billed from your wallet by clip length and resolution, so a short clip at a lower resolution costs less than a long one at full quality. You see the price for your settings before you render.