If you’ve spent any time on YouTube lately, you’ve probably come across channels like Business Casual. With only 91 videos, they’ve already crossed 1 million subscribers and pulled in more than 100 million views. Their secret? Eye-catching 3D documentary-style videos that mix history, business, and cinematic storytelling.
And with an RPM (revenue per thousand views) between $10–$15 in the finance/documentary niche, you can imagine how much money channels like this are making from ads alone.
But here’s the surprising part—creating this style of content doesn’t actually require years of 3D animation or professional editing experience. Thanks to AI tools, you can recreate the same cinematic style on your own, even with zero design background.
Let’s break down exactly how it’s done.
Step 1: Crafting the Script with ChatGPT
Every great video starts with a powerful script. Business Casual doesn’t just throw random facts on screen—they tell a story.
Take this example:
“Imagine a man so powerful that when the United States government faced collapse, he didn’t just help. He took control. No public office, no army, no throne—just an iron will and a bank vault deeper than the nation’s own treasury. This is the story of J.P. Morgan…”
That level of drama and narrative is what hooks viewers. You can replicate it by using ChatGPT. Simply write a prompt that instructs the AI to generate a documentary-style script:
- Natural, conversational tone
- No narrator labels or timestamps
- Full development of each idea
You just provide the topic—say, “the rise of Rockefeller” or “the fall of Kodak”—and ChatGPT handles the rest.
Step 2: Generating Voiceovers with 11 Labs
Once you’ve got your script, the next step is giving it a voice. 11 Labs makes this seamless with high-quality AI voices.
Here’s how:
- Paste your script into the text-to-speech box.
- Use filters like English → Narrative/Story → Male → Middle-aged.
- Test voices until you find one that matches your style.
For best results, increase stability and similarity above 70% to keep the voice consistent across long scripts. After generating, trim any silences in Audacity using the “Truncate Silence” effect. Export, and you now have a professional-sounding voiceover.
Step 3: Creating Images with AI
This is where the “3D documentary look” comes alive. You don’t need to design every scene manually—AI can generate historically accurate, cinematic visuals for you.
The trick is in the prompts. For example, you can tell ChatGPT:
“Based on this script, generate 20 prompts for image creation in a cinematic documentary style—muted vintage colors, sepia tones, dramatic lighting.”
Copy those prompts into your favorite AI image generator, and you’ll have dozens of visuals ready to use. With the right tool, you can even automate thousands of images per month without paying high API costs
Step 4: Adding Movement & Real Footage
A great video is more than just a slideshow. To increase realism, add subtle motion. For instance:
- A train scene where smoke naturally drifts
- A ship cutting through misty waters
- Slow zoom-ins and panning effects
These small touches turn static images into engaging visuals. Mix in some real stock footage where possible—this makes your content more trustworthy and cinematic.
Step 5: Combining Everything in CapCut
Finally, it’s time to stitch it all together. Tools like CapCut make editing simple:
- Import your images and video clips
- Add the voiceover
- Apply slow zoom-ins, captions, and smooth transitions
- Layer effects like pale noise or shadow sweep for extra polish
The result? A documentary-style video that looks like it came from a professional production team.
Final Thoughts
Channels like Business Casual prove that there’s massive opportunity in documentary-style YouTube content. And with AI, you no longer need a studio, a big team, or years of editing experience to compete.
By following these steps—scriptwriting with ChatGPT, voiceovers with 11 Labs, image generation, adding subtle motion, and editing in CapCut—you can start building your own faceless YouTube channel that tells compelling stories and attracts millions of views.
Whether you join a community with automation tools or go fully DIY, the blueprint is the same. Focus on engaging storytelling, pair it with cinematic visuals, and let AI handle the heavy lifting.
The best part? This niche is still wide open. If you start now, you could be the next Business Casual.