Edit video without the busywork.

AI video editing is best at the tedious parts of an edit: transcribing, cutting pauses and filler words, captioning, cleaning up audio and reframing for vertical video. You still decide what the story is. Descript, Adobe Premiere, DaVinci Resolve and CapCut each automate several of these jobs, and OpusClip specializes in turning long videos into short clips.

This guide covers each job, the features that do it as of September 2026, and where a human still has to check the work.

01What AI video editing does well in 2026

Most of an edit is not creative. It is finding the good take, trimming the gaps and fixing the sound. That is exactly the work AI now does well.

Generating new footage is a different job. For that, see our comparison of AI video generators.

02Edit by transcript: text-based editing

This changes how a rough cut feels. Instead of scrubbing through an hour of footage, you read it. Interviews, tutorials, podcasts and talking-head videos gain the most, because the words carry the story.

Two editors put this front and center. Descript was built around the idea, and adds one-click tools to remove filler words and retakes, plus an AI co-editor called Underlord. Adobe Premiere, which Adobe renamed from Premiere Pro, transcribes video on import so you can build a rough cut by copying and pasting text.

1. 01

   Transcribe everything first

   Import all your footage and let the editor transcribe it. Skim the text and mark the good takes, the way you would highlight a document.

2. 02

   Build the story in text

   Delete false starts and tangents, and move the best answers into order. Do not polish yet.

3. 03

   Watch it once, start to finish

   Text hides problems: a cut in the middle of a gesture, a jump in the background, a laugh that lost its setup. Fix those on the timeline.

4. 04

   Finish last

   Add captions, sound fixes and graphics only when the edit stops changing.

03Captions people can read

Captions help people who watch with the sound off, and they are essential for viewers who are deaf or hard of hearing. Descript, Premiere, CapCut and OpusClip all write them for you. Premiere can translate captions into 18 languages, and CapCut offers automatic captions in several languages on desktop, web and mobile.

Treat automatic captions as a first draft. Proofread names, brand names, numbers and technical terms, which are easy for speech recognition to miss. Then check the layout:

• One or two short lines at a time, broken at natural pauses.

• High contrast, such as white text with a dark outline or a dark box behind it.

• Clear of platform buttons and of any text in the video, especially on vertical video.

Captions can be burned into the picture or kept as a separate track that viewers switch on and off. The free FFmpeg tool can add a caption file to an MP4 as a switchable track:

ffmpeg -i vertical.mp4 -i captions.srt -map 0 -map 1 \
  -c copy -c:s mov_text -metadata:s:s:0 language=eng captioned.mp4

Burning captions into the picture with FFmpeg needs a build that includes the libass library, and not every install has it. Most editors do it in one click.

04Cut silences and filler words without sounding robotic

Removing dead air is where AI saves the most time. In Descript, removing filler words such as “um” and “uh”, or every retake, is one click.

The risk is overdoing it. Speech with every pause removed sounds breathless and is hard to follow. Keep short pauses between thoughts, keep a filler word when it carries meaning, and always listen to the result.

To see where the pauses are before you cut, FFmpeg’s silence detector lists them:

ffmpeg -i talk.mp4 -af silencedetect=noise=-35dB:d=0.5 -f null -

On a 12-second test clip with three pauses, the first lines of its output were:

[Parsed_silencedetect_0 @ 0x873405800] silence_start: 2.500917
[Parsed_silencedetect_0 @ 0x873405800] silence_end: 4.000042 | silence_duration: 1.499125
[Parsed_silencedetect_0 @ 0x873405800] silence_start: 6.499979
[Parsed_silencedetect_0 @ 0x873405800] silence_end: 8.000042 | silence_duration: 1.500062

noise sets how quiet counts as silence, and d sets the shortest pause to report, in seconds. In a noisy room, raise the threshold, for example to -30dB.

05Clean up audio with AI

Fix the sound before the picture. A clear voice matters more than a perfect color grade. Speech enhancement separates a voice from background noise, and these are the main options as of September 2026:

• Descript Studio Sound removes background noise with AI.

• Adobe Premiere Enhance Speech improves dialogue and removes background noise. Adobe also runs Adobe Podcast Enhance Speech, a free web tool for cleaning up spoken audio.

• DaVinci Resolve Voice Isolation separates voices from noise. It is part of the paid Studio version, which costs $295.

• CapCut has AI tools to reduce noise and improve voice clarity.

Use the lightest setting that works. Heavy processing can make voices sound thin or robotic, and it strips out the breaths and room tone that make speech feel natural. Record as cleanly as you can anyway, because cleanup works best on a decent recording.

06Reframe for vertical video

Shorts, Reels and TikTok are vertical, at 9:16, while most cameras shoot 16:9. Reframing crops the wide shot to a tall one and moves the crop to follow the subject.

• DaVinci Resolve Smart Reframe tracks the subject automatically. It is a Studio feature.

• OpusClip finds highlights in a long video, cuts them into clips and reframes them with object tracking. It takes YouTube links and other sources as well as uploads.

• Descript creates social clips from long recordings.

For a static center crop, FFmpeg needs one line:

ffmpeg -i talk.mp4 -vf "crop=ih*9/16:ih,scale=1080:1920" -c:a copy vertical.mp4

We tested all three commands with FFmpeg 9.0 on a generated 1920 x 1080 clip, and the crop came out at 1080 x 1920. A center crop only works while the subject stays in the middle. If they move, use a tracking reframe, then check every shot for cut-off faces and text.

07Which AI video editor should you use?

As of September 2026, this is how the main tools line up. Prices change, so check each vendor’s page before you buy.

Adding a narrator? Our guide to AI voiceovers that sound human covers scripts, delivery and consent. For animated titles and explainers, see motion graphics with AI.

08FAQ

Read next: how to make YouTube thumbnails with AI that people click.