AI facts video generator
The facts niche has the shortest patience curve of anything on short-form. There is no narrative to invest in, so every scene has to justify the next one on its own — which is why the successful accounts run five or six discrete payloads in thirty seconds rather than one explanation stretched across it.
It is also the niche where the hook is not a technique. You do not write a hook for a fact video; you open with your second-best fact and save the best one for the end. Everything else is pacing.
What the format actually looks like
- Length: 30 seconds, five to six factsAbout five seconds per payload. That is enough for one image, one sentence and a beat to register, and not enough for the viewer to start deciding whether to swipe.
- Open with a fact, not a promise"You won't believe number three" is a promise the viewer has been let down by a thousand times. Leading with an actual surprising statement does the same job and costs nothing in trust.
- Numbers belong in the captionSpoken numbers evaporate; written ones anchor. Put the figure on screen — the captions are cut to the measured timing of the voiceover, so it appears exactly as it is said, and you can edit the wording per scene afterwards.
- Check the facts yourselfCastmint writes the script from your prompt using a language model, and a language model will produce a confident wrong number as readily as a right one. In a niche whose entire proposition is accuracy, verifying the script before you render is not optional — and the script is right there to read before anything is generated.
How to make one in Castmint
This is the prompt-to-video flow: your prompt becomes a script, the script is split into scenes, an image is generated per scene, a voice reads the narration and the captions are cut to the measured timing of that recording. It all composites into one MP4 you download and own.
Settings to start from
A prompt you can paste
A 30-second "did you know" video about the deep ocean. Six surprising, verifiable facts, one per scene, each a single sentence with the number stated plainly. No intro, no outro, strongest fact last.
Minimalist keeps the frame uncluttered so the on-screen number is the loudest thing in it — busy illustrated styles fight the caption in a niche where the caption is the payload. Nova is the liveliest standard voice, which suits a five-second-per-fact cadence. The upbeat bed is bright synths with driving drums and keeps the tempo honest. Thirty seconds is 10 credits, 15 with music.
Accounts working in this niche
Real, live Facts & Education accounts we watch, with our own note on what makes each one recognisable. Study the structure and the pacing — then make something original. Copying another creator's video is not a strategy and it is not allowed under our Acceptable Use Policy.
- high-production 3D animated micro-shorts illustrating one surprising true fact, warm narration, tight hook-to-payoff structure
- flat 2D vector-animation explainer, bright saturated palette, calm precise narration breaking down one science topic
- countdown and trivia-reveal videos over archive photos, bold yellow caption text, confident narrator voiceover
Facts & Education video questions
Does Castmint check whether the facts are true?
No, and no AI video tool should claim to. The script is written by a language model from your prompt and you should read it before rendering. Verification is your editorial job; the product's job is turning a verified script into a finished video.
Can I write the facts myself?
Yes — paste your own script and the pipeline skips the writing step, splitting your text into scenes and generating images, voiceover and captions from it. For an accuracy-first niche, this is the path most people end up on.
How many of these can I make in a month?
On Starter, 400 credits a month at 10 credits per 30-second video is 40 videos, and the plan is capped at 40 videos a month, so the two line up. Growth's 1,200 credits and 120-video cap is roughly four a day.
Can I make them in a language other than English?
Yes — the creator generates the script and the voiceover in any of ten languages, including Polish, German, French, Spanish, Portuguese, Japanese and Chinese. The captions follow the narration.
Make your first Facts & Education video
Write the idea, pick the settings above, and the finished MP4 comes back a few minutes later. Every video is yours to download.
Try Castmint freeFree plan: 3 videos or 1 AI film clip, watermarked. No commitment.
Other niches
Every plan, credit cost and limit mentioned on this page is on the pricing page, and the pipeline itself is described in full on what Castmint does.