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Make Your First AI Video in 3 Hours: 5 Steps with Codex (No Experience Needed)

How to Make an AI Video in 3 Hours (Zero Experience Required) – Full Walkthrough

This guide breaks down the exact process used to create the first AI video in just 3 hours, without writing a single line of code or editing by hand. Whether you're a complete beginner or a curious creator, these five steps will save you time and frustration.

Step 1: Install the Right Tools

  • Use Codex or Cloud Code (cloud version helps if you hit usage limits).
  • Install skills – these are instruction manuals that tell Codex what to do for each job.
  • Don't install entire large packages (e.g., the social media package has 106 skills). Instead, tell Codex what you're making and let it choose only the skills you need.
  • For this project, only 7 skills were required (list shown in video). For more on AI creation basics, check out Unlocking Creation: How to Make Videos with Nvidia AI for Beginners.

Step 2: Write Your Script – The Foundation

Key insight: Most AI video tutorials jump straight to tools. Wait until you have something to say, then build.

  • The script went through 16 versions before it felt right.
  • Use different skills to review each other's drafts, then read everything yourself.
  • Common pitfalls to avoid:
    • Too corporate
    • Point gets buried
    • Doesn't sound like you
  • Keep cutting until it feels authentic.

Step 3: Clone Your Voice (Tricky but Worth It)

  • Fish Audio created the voice from just 2 minutes of personal recording.
  • The process wasn't instant – version 2 almost failed, version 3 finally worked.
  • How it worked: Codex used the Fish Audio API to generate each sentence as a separate MP3 file, named by sentence ID. This allowed:
    • Perfect control over pauses
    • Easy editing (change one sentence, only that file rebuilds)

Step 4: Create a Storyboard (Even If You've Never Done One)

  • Ask Codex to generate a sketch for each scene first, using Hyperframes for general video.
  • Tips for working with AI visually:
    1. Say what's wrong
    2. Say how you want it changed
    3. If you don't know, ask for options
  • The final color palette matched the logo – achieved by asking for multiple options and choosing one.

Step 5: Build the Video – One Segment at a Time

  • Critical mistake avoided: Codex once built in vertical (portrait) instead of landscape. Build one segment, review it, give feedback, then move to the next.
  • Build sequence:
    • Build segment 1 → play it → give concrete, small feedback → repeat
    • Add captions
    • Export
    • Watch the entire video from start to finish
  • Final checks before calling it done:
    • Captions appearing too early
    • Scenes not fully cleared
    • Narration endings clipped off

For a more cost-effective approach to AI video, you might also consider How to Create Unlimited Free AI Videos and Midjourney-Quality Images with Meta AI.

Key Takeaways for AI Video Beginners

  • Work incrementally: One segment at a time, with immediate feedback.
  • Be specific with AI: Say what's wrong, how to fix it, or ask for options.
  • Check orientation before building everything.
  • Watch the full export – small problems are invisible during editing.

If you're looking for a broader learning path, see A Step-by-Step Roadmap to Mastering AI: From Beginner to Confident User.

Final Result

This 3-hour process produced the first finished AI video using zero code and zero manual editing. If you'd like a deeper dive into any single step, or want to see another AI project, drop a comment below.

Like and subscribe to Jellyhop Labs for more experiments in AI-powered creation. Let's learn together.

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