How much does an 8-minute AI video cost?

AI video generation looks cheap when a platform advertises a price per second. The arithmetic for a whole video is less flattering, and the arithmetic is not even the expensive part.

Here is what an eight minute video actually costs to generate, and why almost nobody should generate all of it.

480 seconds, four rates

Eight minutes is 480 seconds. If every second came from a video model:

Per-second rate	480 seconds
$0.05	$24
$0.10	$48
$0.25	$120
$0.50	$240

Those are illustrative bands rather than any particular provider’s price, because published rates move constantly and differ by resolution, length and model tier. Find your provider’s current per-second figure and multiply — the shape of the result is what matters here, not the row you land on.

And that is before a single retry, before narration, before music, before the edit.

Why the real number is two to three times that

One generation is not one usable clip. You will generate a scene and find that:

• The motion is wrong
• A character’s appearance changes between shots
• Any on-screen text comes out distorted
• The camera move is not usable
• The clip simply does not match what the narration is saying at that moment

Two to three attempts per usable clip is the realistic planning assumption. So the $48 row is really $96 to $144, and a published estimate that assumes one take per clip is the reason so many budgets feel wrong the first time somebody tries them.

Which is why generating everything is the expensive mistake

Almost no faceless format needs generated footage for all 480 seconds. A working video mixes:

• Generated video for the few scenes that genuinely need it
• Generated images, panned and zoomed
• Licensed stock footage
• Screen recordings
• Maps and charts
• Motion graphics and text animation

Take the $0.10 row. Generating all 480 seconds is $48, or roughly $144 with retries. Generating the 60 seconds that actually need a model is $6, or about $18 with retries — an eighth of the cost, for a video most viewers would rate higher, because the maps and charts and screen recordings are usually the more informative shots anyway.

The generated clips earn their place when the thing being described cannot be filmed or found. That is a small share of most scripts. Deciding which scenes those are is a job for the Script-to-Scene Splitter, before you spend anything.

The lines that are not generation

Generation is one row in the budget, and on most faceless workflows it is not the biggest:

• Scripting — a subscription, or your own hours
• Narration — a TTS plan, or a human narrator. Billed per character, so word count sets it; the Voiceover Cost Calculator prices a specific script
• Images and footage — a stock library or image generation
• Music — a licensed service
• Editing — software, plus the hours, which are real whether or not you invoice them
• Thumbnail — design software, generation, or a designer

What a faceless video really costs prices four complete production stacks end to end, including the month you publish nothing. This page is only about the generation line; that one is the whole budget.

Estimate before you buy credits

Six numbers settle it before any money moves:

1. Final video length
2. How many scenes actually need generated video
3. Average length of each of those clips
4. Your provider’s current per-second or per-generation rate
5. Expected attempts per usable clip — start at three
6. Everything else in the list above

The AI Video Cost Calculator runs that for a specific video, and the Script Length Calculator gives you the runtime to feed it if the script is not written yet.

The short version

There is no single price for an eight minute AI video. A fully generated one is expensive enough that the per-second rate stops looking cheap around the second retry, and a hybrid video using generation only where it is needed costs a fraction of it.

Calculate first, generate second. It is the one part of this workflow where the order genuinely decides the number.