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How to Quickly Create Social Media Video Clips Using AI

Turn a source video into several short social clips by specifying the audience, moments, pacing, and export format.

How to Quickly Create Social Media Video Clips Using AI

32:03 to 33:46: Claire drops a video into the model, asks for five social clips with sharp funny moments, and refines the edit for pacing and tone.

Before you start

What you need

  • A local source video and transcript
  • Target platform, audience, and duration
  • Tone, caption, and framing requirements

What you’ll make

A set of distinct social-ready clips with accurate cuts, readable captions, and clean exports.

Tools used

  • Codex

    OpenAI's cloud-based AI software engineering agent that can execute code, run tests, and handle complex multi-file tasks autonomously.

    VisitCodex

Step by step

The workflow

Follow the sequence once, then adapt the prompts, checks, and handoffs to your own setup.

5 steps

Step01

Upload Your Video File

Open a multimodal AI tool like Codex that accepts video files. Drag and drop your long form video, such as a talk or webinar recording, into the interface.

Example prompt
Upload the source video and transcript without recompressing the original.
Step02

Provide an Initial Prompt

Provide a simple, direct instruction in the chat interface. Specify the number of clips you want and their intended use, such as for social media, to guide the initial edit.

Example prompt
Create five clips for [platform], each [duration], aimed at [audience], using sharp, funny, high-energy moments with a complete payoff.
Step03

Refine the AI's Output

Review the clips the AI generates and provide follow up feedback in the chat to refine them. For example, ask for changes to the orientation, pacing, or editing, such as making the clips "horizontal, faster, and tighter."

Example prompt
Tighten this clip around [moment], keep the necessary setup, remove pauses, and preserve the speaker’s exact meaning.
Step04

Finalize and Export

Once the AI generates clips that meet your needs, download the video files from the tool.

Example prompt
Export approved clips in [aspect ratio, resolution, codec] with normalized audio and burned or sidecar captions.
Step05

Add Finishing Touches

For a more polished look, import the clips into a video editor like CapCut to add music, captions, or other branding elements before publishing.

Example prompt
Add the approved title card, caption styling, safe margins, and final audio check.

What good looks like

  • Each clip has a complete idea or payoff
  • Cuts preserve the speaker’s meaning
  • Aspect ratio, captions, audio, and duration match the platform

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After the steps

Runbook notes

How to recover when the loop fails and where human judgment helps.

Recover

If it goes sideways

The model chooses low-value moments
Provide the audience and the emotion or insight each clip should deliver.
Cuts change the meaning
Compare every edit with the transcript and include enough setup.
Exports are technically wrong
Specify resolution, aspect ratio, codec, loudness, and captions.

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