ChatGPT answers, unedited

If your goal is specifically “I have a library of finished 16:9 videos; give me 9:16 versions automatically, with the crop following the important person/action”, I’d narrow it to these:

1. opus.pro — best overall for easiest workflow

• Its AI Reframe detects faces/action and dynamically adjusts the crop for 9:16. Opus Opus
• Particularly good for interviews, podcasts, talking heads, sports, and other footage where the subject moves.
• It also supports batch/API workflows if you eventually want to automate a larger library. Opus
• My pick if you don't want to live inside a professional NLE.
• loopdesk.ai — best if “batch” is the priority

• Built around reframing whole batches of existing videos, including prompt-driven instructions like keeping the speaker centered.
• A recent comparison specifically identifies it as a strong choice for reformatting entire libraries. Loopdesk Pijush Saha
• I'd investigate this first if you're talking dozens/hundreds of existing videos, rather than generating individual social clips.
• adobe.com — best quality/control

• Auto Reframe can turn a sequence into Vertical 9:16 and track the subject automatically. Adobe
• You can then manually fix the occasional bad crop with keyframes.
• The downside is that it's much less “throw 200 videos at it and walk away” than dedicated AI batch tools.
• vmaker.com — worth considering for large libraries

• Tracks speakers and motion and supports 9:16, 1:1 and 16:9.
• It explicitly supports reframing videos regardless of length/speaker count and runs in the browser. Vmaker AI
• Recent comparisons also identify Vmaker as one of the tools capable of batch-processing libraries. Pijush Saha

What I'd choose

One important distinction: don't optimize for “resize video.” You want AI auto-reframing / subject tracking. A simple 16:9 → 9:16 crop will eventually chop off somebody's face or important on-screen content; smart reframing moves the crop window as the subject moves. capcut.com Loopdesk

If you tell me roughly how many videos you have, their typical length, and whether they're talking-head/interviews, presentations, sports, products, etc., I can recommend the best one specifically for your batch workflow and estimate the cost.

If your main goal is “take a folder of existing 16:9 videos → automatically make good 9:16 versions with the subject intelligently tracked”, I’d rank them:

🏆 My pick: OpusClip

If you're starting with finished horizontal videos rather than editing projects, I'd use OpusClip. Its workflow is designed around turning existing footage into vertical social content, and its reframing system tracks the relevant subject rather than simply taking the center 9:16 crop. It also now exposes auto-resizing through its API, which is useful if you eventually want to automate a whole library. www.opus.pro

Especially good for: interviews, talking heads, podcasts, presentations, and videos where faces/speakers are the important thing.

🥈 CapCut if you want straightforward batch-ish production

CapCut has a very capable Auto Reframe feature: you choose 9:16 and it dynamically adjusts the crop based on the content, including movement. www.capcut.com

The big advantage is that it's a real editor, so you can quickly correct the occasional bad AI decision. The downside is that Auto Reframe is currently a Pro feature, despite CapCut's general editor having free options. www.capcut.com

🥉 Premiere Pro if quality/control matters more than automation

Adobe Premiere Pro has Auto Reframe, which analyzes the focal point and keeps it visible while converting 16:9 → 9:16. www.adobe.com

I'd choose it if these are valuable client/brand videos where you want an editor to inspect and tweak the AI result. It's less attractive if your requirement is “throw 500 videos at it overnight.”

One important distinction

If by “batch-generating” you mean:

I have 200 finished horizontal videos and want 200 corresponding vertical versions with essentially zero human intervention

I'd specifically investigate OpusClip and Loopdesk, rather than traditional editors. Recent comparisons specifically identify Loopdesk and OpusClip as options geared toward batch/library-scale reframing, whereas Premiere is more oriented toward professional timeline workflows. pijushsaha.com

If you tell me roughly how many videos you have (10 / 100 / 10,000), their typical length, and whether they're talking-head, sports, products, or cinematic footage, I can narrow this down to the best 2–3 options and the cheapest workflow.

If your main requirement is “take a folder of existing 16:9 videos and automatically make good-looking 9:16 versions with the subject intelligently followed,” I’d rank them:

🥇 My pick: OpusClip

OpusClip

For a large library of horizontal videos, OpusClip is probably the closest match. Its AI Reframe automatically detects subjects and maintains the framing while converting to 9:16, and its current API supports batch-style generation of multiple aspect ratios from one source. www.opus.pro

It's particularly good if your videos contain people talking, interviews, podcasts, presentations, or moving subjects. It can use face/motion detection and speaker-aware reframing rather than simply taking the center crop. www.opus.pro

🥈 CapCut if you want simple + cheap

CapCut

CapCut's Auto Reframe is very good for straightforward 16:9 → 9:16 conversion and can track the important subject as the shot moves. www.capcut.com

The catch: Auto Reframe is currently a Pro feature, so don't choose it expecting the old free workflow. www.capcut.com

🥉 Premiere Pro if quality/control matters most

Adobe Premiere Pro

Premiere's Auto Reframe analyzes motion and creates a 9:16 sequence while keeping the focal action visible. You can then manually fix any shots where the AI chose poorly. www.adobe.com

I'd choose this if you're making client work or polished branded content, rather than trying to process hundreds of videos as automatically as possible.

One important distinction

If by “batch-generating” you mean:

“I have 200 finished horizontal videos. Drop them into something, automatically make 200 vertical versions, and export them without me touching each timeline.”

I'd specifically favor OpusClip or an API-driven workflow, rather than Premiere/CapCut. OpusClip's current API is explicitly designed around automated aspect-ratio conversion and can output 9:16, 1:1 and 16:9 from the same source. www.opus.pro

If you tell me roughly how many videos you have, their typical length, and whether they're talking heads / podcasts / sports / product videos / mixed footage, I can narrow this down to the best specific tool + workflow for your library.

If your goal is “I have a folder of finished 16:9 videos and want good-looking 9:16 versions with minimal manual work,” my pick is OpusClip.

My ranking

Why OpusClip: its AI Reframe specifically tracks subjects/speakers and converts footage to 9:16, rather than simply taking the center crop. It also supports batch-oriented content workflows and brand templates. www.opus.pro

For example, if your horizontal video has someone walking from left → right, the crop can follow them. For two-person interviews, active-speaker tracking is particularly important; independent testing in 2026 found OpusClip particularly strong in that scenario, though I'd treat that test as directional rather than definitive. quickreel.io

When I'd choose Premiere instead

If you already use Adobe Premiere Pro, I'd probably stay there. Its Auto Reframe can generate a 9:16 sequence automatically, analyze motion, and then let you manually fix the occasional bad crop with keyframes. www.adobe.com

That's the better choice when your videos contain graphics, products, multiple people, screen recordings, or deliberately composed shots where you need more than “follow the face.”

One important distinction

If by batch-generating you mean:

50 existing horizontal videos → automatically make 50 corresponding 9:16 files, preserving the entire edit

I'd lean OpusClip or Premiere, rather than tools whose main purpose is finding viral clips from long videos. Opus has an explicit AI-reframe/resize workflow for this use case. www.opus.pro

If you tell me what kind of videos these are (podcasts, talking-head YouTube, interviews, courses, product demos, gameplay, etc.) and roughly how many you need to process, I can narrow this down to the best 1–2 options and the cheapest workflow.

If your main goal is “I have a folder of finished 16:9 videos; give me good-looking 9:16 versions automatically”, I’d rank them:

1. OpusClip — best overall for batch repurposing
   • Very strong subject/speaker tracking and automatic reframing.
   • Handles 9:16, 1:1, and 16:9 and can automatically detect the important subject rather than doing a dumb center crop. www.opus.pro
   • Particularly good for talking-heads, interviews, podcasts, webinars, and marketing videos.
   • Also has clipping/captions/repurposing if you eventually want more than just reframing.
   • My pick if you're processing a library of videos.

2. CapCut — best inexpensive/simple option
   • Its Auto Reframe tracks the main subject and converts horizontal footage to 9:16. www.capcut.com
   • Good if you want to batch-process videos but still do occasional manual cleanup.
   • Particularly attractive if you're already using CapCut for captions, effects, etc.
   • I'd put it behind OpusClip for large-scale automated repurposing.

3. Adobe Premiere Pro — best if you need professional control
   • Auto Reframe can generate a vertical 9:16 version of an existing sequence and use motion-adaptive tracking. community.adobe.com
   • Much better when your source edits contain complicated graphics, transitions, keyframes, or brand elements that need precise control.
   • The downside is that it's more of an editor's workflow than a “throw 100 videos into it and let AI handle them” workflow.

For your specific use case

I'd choose OpusClip if the videos are already finished and you basically want:

folder of 16:9 → automatically track faces/subjects → generate 9:16 → export

It's particularly compelling because its reframe system explicitly tracks subjects and other important visual elements rather than simply applying a fixed crop. www.opus.pro

If you're talking about hundreds or thousands of existing videos, there's an even more interesting option: OpusClip has an API for automated resizing/reframing, so you can build a pipeline that processes an entire video library without manually uploading each one. www.opus.pro

If you tell me roughly how many videos you have, their typical length, and whether they're talking-head / product / sports / gameplay / cinematic, I can narrow it down to the best tool and workflow for your specific footage.

If your main goal is “I have a folder of finished 16:9 videos; turn all of them into good-looking 9:16 versions with as little manual keyframing as possible,” I’d shortlist these:

🥇 My pick: OpusClip

OpusClip AI Reframe

Its ReframeAnything system is specifically designed to track the important subject/object and automatically produce 9:16, 16:9, or 1:1 versions. It can handle uploaded files as well as various video sources. www.opus.pro

For batch repurposing an existing library, this is the one I'd test first. It's particularly compelling if your footage is interviews, podcasts, talking heads, presentations, or other content where the “important thing” moves around the horizontal frame.

🥈 Premiere Pro if you're already an Adobe shop

Adobe Premiere Pro Auto Reframe

Premiere's Auto Reframe can operate on an entire sequence rather than just individual clips, automatically creating a new sequence at the target aspect ratio. The current version also lets you specify the target resolution directly. helpx.adobe.comhelpx.adobe.com

That's probably the better choice if you need editable timelines and precise cleanup afterward. You can choose different tracking behavior for slow vs. fast-moving footage. helpx.adobe.comhelpx.adobe.com

🥉 CapCut if speed and simplicity matter

CapCut Auto Reframe

CapCut's Auto Reframe automatically adjusts the crop and follows the subject, with 9:16 among its supported formats. www.capcut.com

The catch: Auto Reframe is currently a Pro feature, despite CapCut's general Auto Reframe page describing a free trial/use in some contexts. www.capcut.com

One important distinction

If by “batch-generating” you mean hundreds of existing videos → hundreds of 9:16 files automatically, rather than “find the best short clips from my long videos,” I'd favor OpusClip or a dedicated API/automation workflow over a traditional NLE.

If you tell me what kind of horizontal videos these are (talking heads, podcasts, sports, product demos, gameplay, weddings, ads, etc.) and roughly how many videos you need to process, I can narrow this down to the best 1–2 options and explain the batch workflow.

If your main goal is “take a folder of existing 16:9 videos → automatically make good 9:16 versions → batch export”, I’d shortlist these:

My recommendation

1. OpusClip — if you want the least manual work.
It is particularly good when the videos are interviews, podcasts, webinars, talking-head content, etc. Its automatic reframing is designed to follow the active speaker, and a recent hands-on comparison found it strongest among the tested tools for multi-speaker tracking. quickreel.iowww.capcut.comreclipstudio.com

2. Ssemble — if “batch” is literally the most important requirement.
Its vertical-video workflow specifically advertises batch processing, dynamic reframing, text-safe cropping, and 1080×1920 output. www.ssemble.com This is the one I'd investigate first if you have, say, 100 existing horizontal videos and want a vertical copy of each rather than turning them into automatically selected Shorts.

3. CapCut Desktop — best cheap/easy option.
CapCut's Auto Reframe handles 16:9 → 9:16 and tracks subjects rather than simply taking a center crop. www.capcut.com It's a particularly good choice if you want to inspect/correct the occasional bad crop without learning a heavyweight editor.

4. Premiere Pro — best if you're already in Adobe.
Premiere's Auto Reframe can operate on an entire sequence, create a duplicate vertical sequence, and lets you specify the target resolution. It also has different tracking modes for slow vs. fast movement. helpx.adobe.com The downside is that it's more of an editor's workflow than a “throw 500 files at it” automation tool.

5. ReClipStudio — worth a look if you don't want uploads.
It runs locally, supports 9:16 reframing, and explicitly supports batch queues/folder watching. reclipstudio.com That's compelling for a big archive or sensitive footage.

One important distinction

If you mean:

“Convert every entire horizontal video to a vertical version while intelligently following whoever/whatever is on screen.”

I'd choose Ssemble or ReClipStudio.

If you mean:

“Analyze my long horizontal videos, find the best moments, make multiple Shorts, and automatically frame them vertically.”

I'd choose OpusClip.

If you tell me roughly how many videos you have, their typical length, and whether they're talking heads/podcasts, sports, product demos, etc., I can narrow it down to the best 1–2 options for your exact workflow.

If your goal is specifically “take a folder of existing 16:9 videos and automatically make good-looking 9:16 versions”, I’d rank them:

🥇 My pick: OpusClip

For your exact use case, OpusClip is probably the best starting point. Its AI Reframe automatically detects and tracks important subjects, including moving speakers/objects, and can output 9:16 without you manually keyframing every shot. www.opus.prohelp.opus.pro

It also supports 9:16, 1:1 and 16:9, dynamic layouts, moving-object tracking, and genre-specific reframing on its higher tiers. www.opus.pro

The important distinction: OpusClip can also find short clips inside long videos, so if you want every existing video converted in its entirety, rather than having AI select highlights, make sure you're using its AI Reframe/layout workflow, not primarily its clip-generation workflow.

🥈 Premiere Pro if you want maximum control

If these are valuable master videos and you care about the output looking exactly right, I'd use Premiere.

Its current Auto Reframe can reframe an entire sequence, automatically create a duplicate sequence at the new dimensions, and let you specify the target resolution. helpx.adobe.com

That's particularly attractive if your workflow is:

16:9 masters → duplicate sequence → 9:16 Auto Reframe → quick human QC → export

You get much better control when the AI makes a bad decision, at the cost of more setup.

🥉 CapCut if speed/cost matters

CapCut's Auto Reframe is surprisingly capable and specifically handles converting 16:9 → 9:16 with AI tracking. www.capcut.com

I'd choose it over Premiere if you're producing lots of social content and don't need a traditional professional editing environment. One caveat: Auto Reframe is currently a Pro feature, despite CapCut's general free tier. www.capcut.com

One important caveat

No AI reframer is perfect for two people, groups, presentations with graphics, or subjects moving across a wide frame. A vertical crop throws away a huge amount of the original horizontal image, so those are the cases where you'll want a QC pass. OpusClip, for example, offers manual reframing specifically for correcting its automatic crop. www.opus.prohelp.opus.pro

If you tell me roughly how many videos you're processing (e.g. 20/month vs. 1,000/month), their typical length, and whether they're talking-head/interviews, podcasts, events, gameplay, etc., I can recommend the best workflow—including the most efficient way to batch it rather than doing them one at a time.

If your main goal is “take a folder of finished 16:9 videos and automatically make good-looking 9:16 versions”, I’d pick OpusClip first.

My ranking

Why OpusClip: its ReframeAnything system specifically tracks moving speakers/objects and keeps the important subject in frame, rather than simply doing a center crop. It supports 9:16 output and is designed around repurposing existing videos. www.opus.pro

If you already live in Premiere: use Premiere's Auto Reframe. It can reframe an entire sequence and lets you specify the target resolution, and its motion-tracking modes can be tuned for slow vs. fast-moving footage. helpx.adobe.com It's probably the better choice if you want an editor to quickly fix the 5–10% of shots where AI gets the crop wrong.

CapCut is a strong option if you're primarily making TikToks/Reels/Shorts. Its auto-reframe workflow tracks faces/key objects and can generate 9:16 versions, but I'd expect more manual checking on complicated multi-person footage. www.capcut.com

Bottom line:

• Hundreds of existing videos → OpusClip
• Already edited in Premiere → Premiere Auto Reframe
• Simple social content + low cost → CapCut
• Marketing team/collaboration → Kapwing

If you tell me roughly how many videos you need to process (e.g. 20, 500, 10,000) and whether they're interviews, podcasts, ads, webinars, or general footage, I can narrow it down to the best workflow and pricing tier.

If your main goal is “I have a folder of horizontal videos; turn them into good-looking 9:16 versions automatically”, my pick is OpusClip.

My ranking

1. OpusClip — best overall for your use case
Its AI Reframe specifically tracks moving speakers/objects and automatically creates 9:16 versions; you can also manually correct the framing afterward. It supports different video genres and has an API, which makes it particularly attractive if “batch” means lots of videos rather than just a few. www.opus.prowww.opus.pro

OpusClip

2. CapCut — best value / easiest
CapCut's Auto Reframe converts 16:9 → 9:16 and tracks the main subject. It's a good choice if you want to do reframing plus captions, effects, music, etc. in the same editor. Auto Reframe is currently a Pro feature, despite CapCut also advertising the broader tool as available for free in some contexts/regions. www.capcut.com

CapCut

3. Premiere Pro — best if you're already an Adobe user
Auto Reframe intelligently changes the aspect ratio and keeps the subject centered, with keyframes available for correcting shots that the automation gets wrong. It's much more of a traditional professional editing workflow than OpusClip. www.adobe.com

Adobe Premiere Pro

The important distinction

If you're just resizing existing finished videos, I'd choose OpusClip.

If you're editing the videos anyway, I'd choose CapCut or Premiere.

If you have something like 500 horizontal videos and want to automatically produce 500 vertical versions, I'd specifically investigate OpusClip's API/batch workflow rather than a conventional editor. Its API supports automatic resizing to 9:16, 16:9 and 1:1. www.opus.prowww.opus.pro

If you tell me roughly how many videos you need to process, their typical length, and whether they're talking-head / podcast / product / sports / gameplay, I can narrow this down to the best option and workflow.

If your main goal is “take a folder of existing 16:9 videos and intelligently turn them into 9:16 without manually keyframing every shot,” I’d shortlist these:

🥇 I'd pick OpusClip

For your specific use case, OpusClip is probably the strongest fit. Its AI Reframe automatically converts footage to 9:16 and tracks speakers, moving objects, and important visual elements rather than simply taking the center crop. It also supports 9:16/1:1/16:9 outputs and has workflow features aimed at processing lots of content. www.opus.pro

An independent 2026 comparison also found OpusClip strongest among the tested tools for active-speaker tracking and face framing, though that was a single test rather than a universal benchmark. quickreel.io

Especially good if your videos are:

• interviews/podcasts
• talking-head videos
• webinars
• presentations
• product demos
• videos where the subject moves around the horizontal frame

Try OpusClip's AI Reframe

🥈 CapCut if you're optimizing for volume + simplicity

CapCut's auto-reframing is designed specifically for converting 16:9 footage to 9:16, and its broader long-video workflow can generate multiple vertical clips in a batch. www.capcut.com

I'd choose CapCut over OpusClip if you're already using CapCut and want a cheap, relatively straightforward production pipeline rather than a dedicated repurposing platform.

🥉 Premiere if you need the AI and professional control

Premiere's Auto Reframe can automatically reframe an entire sequence, not just individual clips, and you can specify the target resolution. helpx.adobe.com

The advantage is what happens when the AI gets something wrong: you can directly adjust the generated position/scale/keyframes. Adobe even provides different tracking modes for slow versus fast-moving footage. helpx.adobe.com

So:

100+ videos → OpusClip
Social-first editing → CapCut
You already live in Premiere → Premiere Auto Reframe
Need maximum automation with minimal editing → OpusClip

One important distinction: if by “batch-generating” you mean “I have 500 finished horizontal MP4s in a folder and want software to automatically produce 500 corresponding 9:16 MP4s, preserving each video's entire duration”, rather than “find clips/highlights from my long videos,” tell me that. That changes my recommendation, because I'd prioritize a batch-processing/API workflow rather than a video-to-shorts platform.

If your main job is “take a folder of 16:9 videos and automatically make good-looking 9:16 versions”, my pick is OpusClip.

My ranking

1. OpusClip — best overall

Its AI Reframe automatically detects important subjects, tracks speakers/moving objects, and converts horizontal footage to 9:16. More importantly for your use case, it supports batch processing, so you're not manually setting up every video. www.opus.pro

OpusClip AI Reframe

For interviews/podcasts with people moving around or multiple speakers, this is the one I'd test first. A recent independent comparison also found OpusClip particularly strong at active-speaker tracking. www.opus.proquickreel.iohelp.descript.com

2. Adobe Premiere Pro — best if you're already in Adobe

Premiere's Auto Reframe is designed specifically to turn 16:9 footage into vertical formats while tracking subjects, and you retain much more ability to manually fix bad crops afterward. www.adobe.com

Adobe Premiere Pro

I'd choose this over OpusClip if you have a professional editing pipeline and need precise, repeatable control rather than maximum automation.

3. Descript — best if you're doing content repurposing

Descript can create multiple clips, apply portrait 9:16 layouts, and publish multiple compositions together. It also lets you build reusable custom layout packs, which is useful if every vertical needs the same branding, captions, logo placement, etc. help.descript.com

Descript

What I'd use

If you mean hundreds of existing horizontal videos → automatically framed vertical files with minimal human intervention, I'd go:

OpusClip → batch upload → AI Reframe → 9:16 → review exceptions → export.

If you tell me roughly how many videos you're converting, their typical content (talking heads / podcasts / sports / product demos / cinematic), and whether you need to preserve the entire video or also automatically make shorter clips, I can narrow it down to the best workflow and plan.

If your goal is specifically “take a folder of existing 16:9 videos and efficiently make good 9:16 versions with AI deciding what stays in frame,” I’d narrow it to three:

🥇 Best overall: CapCut

CapCut

Best if you want speed and volume. Its Auto Reframe analyzes the footage, chooses the important subject, and dynamically adjusts the crop for 9:16. It also has stabilization and camera-movement controls. www.capcut.com

The big advantage is that it feels designed around social repurposing, rather than traditional editing. The catch: Auto Reframe is currently a Pro feature. www.capcut.com

🥈 Best professional option: Adobe Premiere Pro

Adobe Premiere Pro

If you're already editing in Premiere, I'd use Auto Reframe rather than moving your workflow elsewhere. Adobe's system identifies the focal point and keeps it visible as you change from 16:9 to 9:16. www.adobe.com

Best for: professional footage, complex timelines, brand consistency, and situations where you want to manually fix AI decisions afterward.

🥉 Best if you also want AI to find the clips: OpusClip

OpusClip

This is different from simply batch-reframing. OpusClip is built around taking longer videos and finding potentially useful short clips, then reframing them vertically. www.opus.pro

So if your workflow is:

1-hour horizontal video → automatically find 10 good moments → turn them into 10 vertical shorts

I'd pick OpusClip.

If it's:

50 finished horizontal videos → make a 9:16 version of each one

I'd pick CapCut or Premiere.

My recommendation

One important caveat: “smart framing” isn't equally good on every type of footage. A single presenter is easy; two people talking, subjects crossing the frame, products moving around, or wide shots with important information at the edges can fool the tracker. Even CapCut recommends reviewing the crop when there are multiple focal points or fast movement. www.opus.prowww.capcut.com

If you tell me what kind of videos you're converting (podcasts, interviews, talking-head YouTube, real estate, sports, product videos, etc.) and roughly how many videos/minutes per month, I can tell you which one I'd actually buy and what the fastest batch workflow would be.

If your main goal is “take a folder of existing 16:9 videos → automatically make good 9:16 versions → export them in bulk,” my top pick right now is OpusClip.

My ranking

1. OpusClip — best for your use case.
Its AI Reframe automatically tracks speakers and moving subjects, supports 9:16, and—importantly for your question—OpusClip explicitly supports batch processing. www.opus.prowww.opus.pro It also has an API if you're talking about hundreds/thousands of videos and want to automate the pipeline. www.opus.pro

I'd choose this if you want something like:

videos/ → upload a batch → AI finds the important subject → generates 9:16 versions → download/export

2. Adobe Premiere Pro — best quality/control.
Premiere's Auto Reframe analyzes motion and creates a vertical 9:16 sequence, while still letting you manually fix the framing afterward. www.adobe.com This is the one I'd use if the videos are professionally produced and you care about preserving exact cuts, graphics, color, audio, etc.

3. CapCut — best inexpensive/easy choice.
Its Auto Reframe handles 16:9 → 9:16 and can track the main subject, with stabilization and camera-movement controls. www.capcut.com The catch is that Auto Reframe is currently a Pro feature. www.opus.prowww.capcut.comwww.opus.pro

What I'd actually pick

• 10–100+ existing videos: OpusClip
• You already edit in Premiere: Premiere Pro
• Social-first content and lowest learning curve: CapCut
• Hundreds/thousands + fully automated pipeline: OpusClip API

One important distinction: if you mean “make a vertical copy of every entire video”, rather than “find the best clips from my long videos,” I'd specifically configure OpusClip for AI Reframe rather than its clip-generation workflow. Its Reframe tool is designed for exactly that aspect-ratio conversion and supports batch processing. www.opus.prowww.opus.pro

If you tell me roughly how many videos you have, their typical length, and whether they're talking heads / interviews / sports / products / etc., I can narrow this down to the best workflow and cheapest option.