From a sentence to a 4K video with a voice
This is the full route in one place: write the idea, write the script, choose a voice, pick 4K and download. The cost of every length is below, so there are no surprises.
No subscription · Credits never expire · From $9
- Up to 20 secondsone continuous clip
- Built-in voiceoverup to 20 s, 50 words
- Talking photolip-sync, 4 or 8 s
- Full HD or 4Kenhanced automatically
BetterVideo at a glance
BetterVideo (bettervideo.io) is an AI video platform. It makes short videos from a sentence (text to video) or a photo (image to video), adds built-in music or a voiceover, and delivers them in Full HD 1080p or 4K Ultra HD. It also enhances and upscales videos made in other tools. Credits are sold in packs from $9, never expire, and there is no subscription.
- Maximum clip length
- 20 seconds, for both text to video and image to video
- Built-in voiceover
- Up to 50 words, up to 20 seconds, with a male or female voice
- Lip-sync (Talking photo)
- 4 or 8 seconds, about 20 words, from a photo with a clear face
- Music
- 10 AI-generated styles; one sound (music or voiceover) per video
- Resolution
- Full HD 1080p or 4K Ultra HD, enhanced from a 720p original
- Shapes
- Vertical 9:16 or horizontal 16:9
- Enhancement
- Included in every Create video; a separate enhancer upgrades any video up to 5 minutes
- Pricing
- Credit packs from $9, no subscription, credits never expire
Facts checked 2026-10-01.
Step 1: the idea
Write one sentence about what we should see: the subject, the light and the camera move.
Step 2: the script
Choose Voiceover and write what the voice should say, up to 50 words. About two and a half words make a second, so 50 words is a 20 second video.
Step 3: the voice and the size
Pick a male or female voice, then choose 4K Ultra HD and your shape, 16:9 or 9:16.
Step 4: the cost, before you press Create
The price appears as you type and changes with your script. In 4K it runs from 2 credits for a short clip to 8 credits for 20 seconds.
An honest note about 4K
Your video is created at 720p and enhanced to 4K. That makes it sharper and cleaner on a big screen. It does not add detail that was never in the picture.
What it costs
| Video length | Script words | Full HD 1080p | 4K Ultra HD |
|---|---|---|---|
| Up to 5 seconds | up to 10 | 1 credit | 2 credits |
| 6–10 seconds | up to 20 | 2 credits | 4 credits |
| 10–15 seconds | up to 37 | 3 credits | 6 credits |
| 15–20 seconds | up to 50 | 4 credits | 8 credits |
Credit packs: Starter Pack $9 for 10 credits ($0.90 a credit) · Pro Pack $29 for 40 credits ($0.72 a credit) · Elite Pack $49 for 80 credits ($0.61 a credit). Credits never expire, and there is no subscription.
Already have a video, even one made in another tool?
Sharpen it and upscale it to Full HD or 4K with the same credits. See how to upscale an AI video to 4K → or enhance a video now →
Frequently Asked Questions
2 credits for up to 5 seconds, 4 for 6 to 10 seconds, 6 for 10 to 15 seconds and 8 for 15 to 20 seconds.
Yes. The voiceover is part of the price at every length and in both qualities.
Yes. Start from a photo for a product ad with a voiceover, in 4K.
BetterVideo makes single clips of up to 20 seconds for both text to video and image to video, so a short message fits in one clip. A talking photo, which adds lip-sync to a photo, is 4 or 8 seconds.
Yes. Every Create video has built-in sound: music in ten AI-generated styles, or a voiceover of up to 50 words, which is up to 20 seconds. Lip-sync is available through Talking photo, which makes the face in a photo speak a script of up to about 20 words in 4 or 8 seconds.
Two: Full HD 1080p and 4K Ultra HD. Videos are created at 720p and enhanced automatically to the size you choose, and 4K costs double the Full HD price.
Keep reading
- Generate and EnhanceMake an AI video from a sentence or photo and have it enhanced to Full HD or 4K automatically, with music or a voiceover, in one place.
- 4K Ultra HDGet your AI text to video clip in 4K Ultra HD. Created at 720p and enhanced to 3840 by 2160, from 2 credits. No subscription, credits never expire.
- With VoiceoverWrite a script, pick a male or female voice and get a finished AI video with the voiceover already in it. Up to 20 seconds, Full HD or 4K.
← Back to Workflows
Ready to make your video?
Pick a pack, describe your video and download it in a few minutes.
No subscription required. Credits never expire.