Long AI Video Generator
Write one sentence or paste a whole script. The AI director splits it into shots, MiniMax H3 films each shot from where the last one ended, and you get one continuous long AI video of up to 4 minutes, with sound and spoken lines.
Describe your long video
One sentence is enough. A full script with scenes and dialogue works too; the director keeps every spoken line word for word.
Long AI video examples, made shot by shot
Each example is one continuous MiniMax H3 video built the way this long AI video generator builds yours: shot after shot, every shot opening on the end of the one before.
Anime drama · 53 seconds
Several scenes in one long AI video, rendered as continuous segments with the open-source ComfyUI method this tool follows.
Source: Songssx/ComfyUI-MiniMaxH3-TimelineDirectorVertical short · 36 seconds
Three H3 clips of 10, 12 and 15 seconds, each continuing the last, joined into one vertical shot for Shorts and Reels.
Source: @hotforteecha on XThese examples are public MiniMax H3 long videos, shown with credit to their makers. Videos you make with this long AI video generator render with H3 Max Turbo at 480P.
What's the longest video AI can generate?
One MiniMax H3 request returns at most 15 seconds, and most AI video models stop somewhere between 5 and 15. This long AI video generator gets past that limit by filming shot after shot and joining them, so one video runs up to 4 minutes: 20 shots of up to 12 seconds each.
You choose a target length from 15 seconds to 4 minutes before the director writes anything, and each shot can be set from 5 to 12 seconds afterwards. The long video is still one piece: no slideshow of separate clips, no voiceover laid over still images.
What is a long AI video generator?
A long AI video generator makes videos longer than a single AI clip by planning several shots and generating them in order, each one continuing the last. You describe the video once; the AI director writes the shot list, MiniMax H3 renders every shot with its sound, and the shots are joined into one long video you can still edit.
That is different from building a long video by stitching unrelated clips together. Every shot here starts on the final frame of the shot before it, so the camera, the characters and the light carry on instead of jumping to a new picture at each cut.
Making a narrated faceless video from still scenes instead? Try the YouTube automation tool
How to make a long video with AI
Describe the video, let the AI director split it into shots, check or edit each shot, then generate. The long AI video generator films the shots in order, joins them, adds subtitles if you want them, and saves the result as clips you can trim on a timeline.
- Step 011
Describe the video
Type one sentence or paste a script with scenes and dialogue, in your own language, and pick a length from 15 seconds to 4 minutes.
- Step 022
Review the shot list
The director breaks the idea into shots of 5 to 12 seconds. Rewrite any shot, add or remove shots, or begin one with “Cut to:” to move to a new scene.
- Step 033
Generate shot by shot
The long AI video generator films the first shot with H3, then opens each next shot on the last frame of the one before. The price is on the Generate button before anything is charged.
- Step 044
Trim and export
The shots are joined into one long AI video, subtitled if you asked, and saved as clips on a timeline where you trim each shot, set its volume and export.
What the long AI video generator does for you
The parts of a long AI video that usually take a node graph, an editor and an afternoon, done in one place.
An idea or a full script
Start from one line, or paste a script with scenes, narration and dialogue. Spoken lines are kept word for word.
Every shot continues the last
Each new shot starts on the final frame of the previous one, so characters and setting carry on through the long video.
Sound and spoken lines
MiniMax H3 generates the audio with the picture: ambience, effects and the lines your characters say.
Subtitles timed to speech
Turn subtitles on and the finished video is transcribed and captioned against what was actually said.
An editable shot list
Before anything renders, every shot is plain text you can rewrite, lengthen, shorten, add or delete. Up to 20 shots in one long video.
Vertical, wide or square
Make long videos in 9:16 for Shorts, Reels and TikTok, 16:9 for YouTube, or 1:1 for feeds.
Pay for delivered shots only
A video that fails is refunded in full. Stop one halfway and you pay only for the shots already saved.
Three videos at once
Start a second or third long video while the first one is still rendering.
Long AI video generator vs doing it yourself
You can build long AI video by hand or with the ComfyUI H3 Director nodes. Here is what each route asks of you.
| What you need | Clips stitched by hand | ComfyUI H3 Director nodes | This long AI video generator |
|---|---|---|---|
| How long a video can be | As long as you keep editing | Limited by your GPU, RAM and disk | Up to 4 minutes per video |
| Setup | An AI video tool plus an editor | Your own GPU, ComfyUI, models and custom nodes | A browser |
| Shot planning | You write every prompt | You write a prompt per timeline segment | The AI director writes the shot list from your idea |
| Joins between shots | Hard cuts; the picture jumps | Latent continuation with the overlap removed | Each shot opens on the previous last frame |
| Sound | Added separately | H3 audio, carried across segments | H3 audio and dialogue in every shot |
| Subtitles | Another tool | Extra nodes | Optional, timed to speech |
| Resolution | Whatever your clips are | Whatever your GPU can render | 480P |
What people make with long AI video
Long videos that need more than one shot to tell, and less than five minutes to watch.
Short drama scenes
Two or three characters, a few locations, spoken lines.
Story videos with real motion
A story told in moving shots rather than still images.
Music visuals
One long, continuous visual that runs through a song section.
Product and brand stories
A product moving through several scenes in one take.
Trailers and teasers
A minute-long teaser for your own film, game or channel.
B-roll sequences
Long, connected footage to cut into a bigger edit.
Is there a free long AI video generator?
Not completely. New accounts get 100 free credits that expire after 30 days, but the long AI video generator charges by the second, so free credits cover a short test rather than a full long video. The exact price for your shot list is on the Generate button before anything is charged.
A video that fails gives every credit back. If you stop a long video halfway, the shots already saved are kept as a shorter timeline and you pay for those alone.
See credit packs and plansLong AI video generator FAQ
Length, joins, sound and cost of the long AI video generator, answered plainly.
How long can a video be?
A long AI video here runs up to 4 minutes. One video holds up to 20 shots, and each shot runs 5 to 12 seconds. You pick a target length from 15 seconds to 4 minutes, the director plans the shots to fit, and you can still lengthen or shorten any shot before generating.
What is the maximum video length MiniMax H3 can generate?
A single MiniMax H3 request is capped at 15 seconds, and most clips people generate are 5 to 10. The long AI video generator chains one request per shot, opening each on the end of the last, which is how one video reaches 4 minutes.
Are the joins between shots seamless?
The picture continues exactly from the previous shot’s last frame, so the image does not jump. Motion and sound start fresh at each join, so a fast action can change pace at a cut; beginning each shot calmly hides it.
Can it make a 10-minute video?
Not in one go: one long video here tops out at 4 minutes. Make longer pieces in parts and join them in your editor. For narrated faceless videos up to 15 minutes, the YouTube automation tool is the better fit.
Do I need ComfyUI or a GPU?
No. You work in the browser and the long video renders in the cloud, so any laptop or phone will do. The method follows the open-source ComfyUI MiniMax H3 Timeline Director, without the install, the models, the node graph or the VRAM it needs.
Can I keep the same character across shots?
A character on screen at the end of one shot is there at the start of the next, because each shot opens on that frame. For a long video with one hero, describe the character the same way in every shot. This tool does not take reference images.
Can the characters speak?
Yes. Put the lines in your idea or in a shot and H3 speaks them in the video, in the language you wrote them. The director never rewrites a spoken line, and it leaves room in each shot for the words to be said at a natural pace.
What resolution and formats do I get?
Long videos render at 480P with H3 Max Turbo, in 9:16 for Shorts, Reels and TikTok, 16:9 for YouTube, or 1:1 for feeds, always with sound. Subtitles are optional; when on, they are burned into the video and timed to the words actually spoken.
Can I edit the long video after it is made?
Yes. The shots are saved as separate clips on a timeline on the video’s page, where you trim the start and end of each one, set its volume and choose how clips join before you export, without paying to generate the shots of your long AI video again.
More ways to make AI video
The same workbench for MiniMax H3 users, and other tools for long stories and scripts.
Make your first long AI video
Describe it once. The AI director plans the shots, MiniMax H3 films them in order, and you get one continuous video of up to 4 minutes.