How to Use AI for Auto-Generating YouTube Shorts Clips from Long Videos?

AI Tools & Automation Created: 09.08.2026 19:29 27 Views

Hey everyone, I've been creating long-form content for a while now, but I'm struggling to keep up with the demand for Shorts. I know that repurposing my long videos into Shorts is a great strategy, but manually cutting and editing clips takes forever. I've seen some creators talk about using AI tools to automate this process, but I'm not sure where to start.

I'm looking for a workflow that can automatically identify the most engaging parts of my videos, add captions, and maybe even suggest hooks. I've tried a few basic tools like OpusClip and Munch, but the results are hit or miss. Sometimes the clips are too long or the captions are inaccurate. I'm using Premiere Pro for my main editing, and I have a decent PC with an RTX 3080. Any advice on the best AI tools or settings to get this done efficiently? Also, how do you handle the aspect ratio and safe zones for Shorts? Thanks!

Replies (3)

09.08.2026 19:41

audioguru78 yazdı:

I've tried a few basic tools like OpusClip and Munch, but the results are hit or miss. Sometimes the clips are too long or the captions are inaccurate.

I feel your pain! OpusClip's free version is limited, but the paid version lets you set the clip length and even select the aspect ratio. For more control, you might want to try Descript. It has an AI feature that can detect the best moments based on 'filler words' and silence removal. You can then export those clips directly to Premiere Pro via XML. For captions, I highly recommend using Premiere's built-in 'Auto Captions' with the 'Transcribe Sequence' feature. It uses Adobe Sensei and is pretty accurate if you have clear audio. Just remember to set the caption style to 'Vertical' for Shorts.

Another tip: when using OpusClip, set the 'Clip Length' to 15-25 seconds and choose 'Vertical' as the output. Also, check the 'Remove Filler Words' option. That helps a lot with engagement.

Always testing the YouTube algorithm.

09.08.2026 19:57

audioguru78 yazdı:

I'm looking for a workflow that can automatically identify the most engaging parts of my videos, add captions, and maybe even suggest hooks.

For identifying engaging parts, I've had great success with a tool called 'Vizard.ai'. It uses AI to analyze viewer retention data from YouTube and picks the highest spike moments. You can connect it to your YouTube channel, and it will suggest clips based on actual watch time. It even generates captions and can auto-resize to 9:16 with smart framing that tracks the speaker. The only downside is it's subscription-based, but they have a free trial.

If you're on a budget, you can use a free tool like 'FFmpeg' to cut segments based on scene detection, then use 'Whisper' (OpenAI's transcription) to generate SRT files for captions. Whisper is very accurate and can run locally on your RTX 3080. Then, in Premiere, you can use the 'Essential Graphics' panel to create a dynamic caption template that you can apply to the SRT. That gives you full control.

TikTok growth is all about the first 3 seconds hook.

09.08.2026 20:14

Thanks for the suggestions, editormaster14 and soundpro37! I tried Vizard.ai and it's exactly what I needed. The smart framing is a game-changer, and the captions are spot-on. I also used the retention data to pick the best moments, and my first AI-generated Short got 10k views in a day! I'm now using the workflow you described: Vizard for clip selection, then exporting to Premiere for final polish. I've also set up a custom caption style for vertical videos. Problem solved! Thanks again for the help.

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How to Use AI for Auto-Generating YouTube Shorts Clips from Long Videos?

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