How to Create Long AI Story Videos with One Prompt (Free Method)

Creating long, engaging story videos is now possible with just a single prompt and a free AI video generator. You don’t need to edit clips, design scenes, or even record a voiceover. All you really need is a script—and AI will handle the rest.

Below is a full walkthrough of how to go from story idea to finished AI video using ChatGPT and a powerful text-to-video tool.

Step 1: Generate Your Story Script with ChatGPT

The first thing you need is a solid script. Instead of writing everything from scratch, you can use ChatGPT to generate a complete story for you.

Open ChatGPT and give it a clear prompt describing the kind of video you want. For example:

“Write a full 2-minute video script for an emotional African folktale about a man who leaves his wife to marry another woman because his first wife cannot give birth to a son after many years of marriage.”

ChatGPT will then generate a full script with narration and dialogue. If the script is too long or too short, you can refine your prompt by saying something like:

“Make it a 2-minute video script in a complete narration format.”

Once you’re happy with the script, copy the entire text from start to finish. This is what you’ll feed into the AI video generator.

If you enjoy this workflow, you may also like using similar methods in tools like Zopia AI, as shown in this guide on turning one prompt into a full AI story video.

Step 2: Open the AI Video Generator (Fcool / Fcar)

The next step is to use a text-to-video AI tool (referred to in the transcript as “Fcool” or “Fcar”). This platform takes your script and automatically generates a full video—scenes, visuals, and narration—without you needing to create images or edit clips manually.

In your browser, search for the tool by name and open the website. Create an account or log in if you already have one. New users may receive free credits when signing up, which you can use to generate videos at no cost.

Step 3: Paste Your Script and Configure the Video

Once you’re logged in, you’ll see an option to create or generate a new video.

Paste Your Script

• Find the main text box where the tool asks for your script or story.

• Paste the entire script you copied from ChatGPT into this box.

• Make sure nothing is cut off—include the full narration from beginning to end.

Select Language and Model

• Choose the AI model suggested by the platform (the default is usually fine).

• Set the language to English (or your preferred language).

• Click the “Generate” or similar button to let the AI analyze your script.

The tool will then read your script, estimate the total duration, and prepare a breakdown of scenes and narration.

Step 4: Choose Duration, Style, and Aspect Ratio

After analyzing your script, the AI will show you an estimated runtime. For example, it might say the script runs around 426 seconds (about 7 minutes) and suggest shortening it.

Adjust the Duration

• You may see options like:

  – Shorten to 60 seconds

  – Keep closer to 2 minutes (may require a paid trial for full length)

• If you’re using free credits or a free trial, you can choose a shorter version (e.g., around 60 seconds) or keep it near 2 minutes if that’s available in your plan.

Pick the Visual Style

The tool will ask what visual style fits your story best. Common options include:

• Realistic cinematic (natural lighting, dramatic tone)

• Documentary-style

• Feel-good or neutral styles

For emotional stories and folktales, a “realistic cinematic” style with rich colors often works very well.

Set the Aspect Ratio

Next, choose where you plan to publish your video:

• 9:16 (vertical) – Best for TikTok, Instagram Reels, YouTube Shorts, and Facebook Reels.

• 16:9 (horizontal) – Best for standard YouTube videos and widescreen formats.

If you’re focusing on short-form platforms like TikTok or Reels, select 9:16. For YouTube long-form, choose 16:9.

After selecting duration, style, and aspect ratio, the AI will analyze your choices and start building the full video structure.

Step 5: Let the AI Build and Refine Your Video

The platform will now:

• Break your script into scenes.

• Plan visuals for each part of the narration.

• Estimate the final runtime (for example, a condensed 60-second version).

You may see questions like:

“Does this 60-second breakdown capture the emotional arc you wanted?”

If it looks good, confirm by choosing the option to proceed (e.g., “Yes, generate”). The AI will then start fully building your video.

During this stage, the tool will:

• Think through character names and scene transitions.

• Generate visual scenes for each part of the script.

• Sync narration with the visuals.

You’ll see a timeline or list of scenes at the bottom of the interface. Each block represents a part of your story. If needed, you can click on individual scenes later to tweak visuals or text.

For more ideas on scaling this kind of workflow into longer or multiple videos, you can also check out this guide on creating unlimited AI videos for free.

Step 6: Preview, Export, and Download Your Video

Once generation is almost complete, you’ll see a preview area with your video and a list of scenes below.

Wait for Full Generation

• If some scenes are still “generating,” wait until all of them are finished.

• You can hover or click on scenes to see details, zoom in, or adjust if the tool allows it.

Export Your Video

When everything is ready:

• Click the “Export” button.

• Choose your resolution—commonly 720p (medium) or 1080p (full HD).

• For most social platforms, 720p is enough and exports faster.

• Confirm the export and wait while the tool renders your video.

After the export completes, open the menu (often three dots next to the video) and select “Download.” The video file will be saved to your phone or laptop, ready to upload to YouTube, Facebook, TikTok, or any other platform.

Final Thoughts

With this workflow, you can create complete AI story videos using just a script and a browser—no editing skills, no cameras, and no complex software required. ChatGPT handles the storytelling, and the AI video generator turns that story into a polished video with scenes and narration.

Once you get comfortable with the process, you can produce multiple videos quickly, experiment with different stories, and grow your presence on platforms like YouTube, Facebook, and TikTok—all powered by AI.