AI Shorts Generator
Give ClipSonic a long video and get back finished vertical Shorts — each one a self-contained moment with a hook, a face-tracked crop and burned-in captions, ready to post.
An AI Shorts generator is judged on the output, not the process: does the clip open with a hook, is it framed for a phone, are the captions readable, and is it a complete thought? ClipSonic is built around those four things. It doesn't generate video from a prompt — it finds the strongest real moments in footage you already have and finishes them as Shorts.
Each Short comes out as a 9:16 clip with the speaker kept in frame, animated captions burned in from the transcript, and — in AI Viral Clips mode — a written title and a one-line reason the moment works. You review, tweak, and export as many as you want, all rendered locally.
How a Short gets generated
Import
Paste a YouTube URL or drop a file.
Transcribe
Cloud (Groq / OpenAI) or local Whisper on your GPU.
Generate clips
AI ranks self-contained moments; each becomes a candidate Short with a score and reason.
Finish
Face-tracked reframe + animated captions applied automatically.
Export
Review, retrim if needed, and render the batch locally.
What makes a good Short — and how ClipSonic gets there
Opens on a hook
Highlight detection favours a strong opening line and snaps the clip start to it, not to an arbitrary timestamp.
Framed for a phone
A face-aware 9:16 crop that follows the speaker — plus 4:5 and 1:1 if you cross-post.
Captions by default
Word-by-word animated captions, burned in, so the Short works on silent autoplay.
A complete thought
Clips are scored for whether they stand alone, and cuts land on sentence ends, not mid-sentence.
A title you can paste
AI Viral Clips returns a written title and hook reason for each Short, ready for the upload form.
A whole batch at once
Generate five to fifteen Shorts from one video and render them together.
Common questions
Does ClipSonic generate videos from text?
No. It is an AI Shorts generator in the repurposing sense — it turns a long video you already have into finished short-form clips. It does not create footage or avatars from a prompt.
What does a generated Short include?
A 9:16 (or 4:5 / 1:1) crop with face tracking, burned-in animated captions from the transcript, and in AI mode a written title and hook reason.
How many Shorts can I generate from one video?
Typically five to fifteen ranked suggestions per video, and there is no export limit — batch-render all the ones you approve.
Can I generate Shorts without a cloud AI subscription?
Yes. Smart Viral Clips scores moments on-device with no API key, and local Whisper handles transcription offline.
What length are the Shorts?
Highlight detection targets roughly 20–90 second self-contained moments; you can adjust the in/out points per clip before export.
Where is the video rendered?
On your computer, via ffmpeg — there is no cloud render queue.
Related pages
Generate your first batch of Shorts
Download ClipSonic free, import a long video, and export finished 9:16 Shorts rendered on your own machine.