AI Video Ad Generator: Write the Script and Render the Ad in One Place
The VdoBloom AI Video Ad Generator makes product and brand ads from a short brief. Either pick one of 22 ready-made ad templates and describe your product, or switch to the AI Script Generator: type a one- or two-line concept, add your tagline, brand name, the shots you want and any voiceover lines, and the AI writes a director-style ad script that is sent straight to the video model you choose.
Is it free? Writing the script costs no credits. You pay only for the video render, priced by model, length and resolution and shown before you generate. New accounts get 10 free credits, enough for a 5-second test ad on Runway Gen-3 at 720p (10 credits) or Seedance 2 Mini at 480p (8). Credits come in one-time packs that never expire (Lite: 300 credits for $19.50) or a monthly plan from $15.
It is aimed at small businesses, e-commerce sellers, app makers and agencies that need a steady flow of ad creatives for TikTok, Instagram, Facebook and YouTube without a shoot for each one.
How it works
- 1
Choose a mode
Choose Template to start from one of 22 ad formats with preview clips, or AI Script Generator to have the ad written from your concept.
- 2
Write the brief
Describe the ad in one or two lines. In script mode, add an optional tagline, brand name, shots to include and voiceover lines; leave the voiceover blank and the AI writes it.
- 3
Pick model, format and length
Choose the video model, 9:16 for Reels and TikTok or 16:9 for YouTube, the duration and the resolution. Add product photos as references in the settings panel if your model accepts them.
- 4
Generate and download
Review the script, render the ad and download it from My Creations. Regenerate with a changed concept or another model to get a second variant.
Why use this tool
Script and video in one tool
The AI Script Generator writes the ad for the exact model you picked, including a timed shot list for models that follow multi-shot prompts.
Free script writing
Only the video render uses credits. Rewrite the script as often as you like before you generate.
Your brand in the final shot
Tagline and brand name are worked into the closing branded shot, and your must-have shots are included in the script.
Several video models
Seedance 2 Mini, Fast, 2 and 2.5, VEO 3.1 Fast and High Quality, Runway Gen-3 and other text-to-video models from one form.
Two ways to make an ad
Templates are the fastest route when one of the formats fits: each has a preview clip and a tested structure, and you only describe your product. The AI Script Generator suits ads that need your own angle. It acts like a commercial director: from your concept it plans the shots, writes the voiceover if you did not, ends on a branded shot with your tagline, and keeps the prompt within the limits of the chosen model.
| Choose Template | AI Script Generator | |
|---|---|---|
| You provide | An ad idea + a template | Concept, plus optional tagline, brand, shots, voiceover, reference images |
| AI writes | The prompt from the template | A full ad script and shot list for your model |
| Best for | Fast, proven formats | Ads with a specific story or brand angle |
| Credits for writing | None | None |
What to put in the brief
The script generator accepts these fields. Only the concept is required.
| Field | Limit | Example |
|---|---|---|
| Concept | 3 to 600 characters | Perfume reveal in a candlelit salon, slow and romantic |
| Tagline | Up to 140 characters | Bold. Bright. Yours. |
| Brand or product name | Up to 80 characters | Your brand name |
| Shots to include | Up to 800 characters | Close-up of the cap, a silhouette walking past, violet smoke |
| Voiceover lines | Up to 1,200 characters | One line per shot, or blank for AI-written voiceover |
| Reference images | From the settings panel | Your product photos |
Which model to use for video ads
Pick by placement and budget. Prices are per clip at the settings shown; the form shows the exact figure for your settings before you generate.
| Model | Example setting | Credits | Good for |
|---|---|---|---|
| Seedance 2 Mini | 5 s, 480p / 720p | 8 / 17 | Testing many ad angles cheaply, with sound |
| Runway Gen-3 | 5 s / 10 s, 720p | 10 / 20 | Low-cost drafts |
| Seedance 2 Fast | 5 s, 720p | 50 | Quick variants for A/B tests |
| VEO 3.1 Fast | One clip | 40 | Cinematic product shots |
| Seedance 2 | 5 s / 15 s, 720p | 82 / 244 | Polished motion and audio |
| Seedance 2.5 | 15 s / 30 s, 720p | 378 / 756 | Full-length ads in one pass, multi-shot |
| VEO 3.1 High Quality | One clip | 160 | Hero creative for a launch |
Read more: Seedance 2.5 on VdoBloom · Best AI video generators for ads
What an ad campaign costs
Testing creative is a volume game. Here is how far a Lite pack (300 credits, $19.50 one-time, never expires) goes; Pro 800 ($37.70 one-time) holds 800 credits.
| Ad creative | Credits each | Ads from 300 credits |
|---|---|---|
| 5 s draft, Seedance 2 Mini, 720p | 17 | 17 |
| 5 s, Seedance 2 Fast, 720p | 50 | 6 |
| VEO 3.1 Fast clip | 40 | 7 |
| 5 s, Seedance 2, 720p | 82 | 3 |
| 15 s, Seedance 2.5, 720p | 378 | Needs a larger pack |
Read more: VdoBloom pricing and credit packs
Ad types you can make
The same form covers most short ad formats. A few that suit it well:
- Product reveals and hero shots for e-commerce listings and social ads.
- Launch teasers for a new product, drop or app release.
- Seasonal and sale promos for holidays, Black Friday or a weekend offer.
- Local business spots: a café, salon, gym or restaurant.
- Lifestyle ads that show a product in use.
- Several angles of one ad for A/B tests: change the concept line or model and regenerate.
Read more: How to make a video ad with AI · How to make a TikTok ad with AI · How to test AI video ads
Pick the right VdoBloom ad tool
This tab writes and renders cinematic ads. Other ad tabs handle formats it does not.
| Tool | What it makes | Use when |
|---|---|---|
| AI Video Ad Generator (this page) | Cinematic product or brand ad from a brief | You want a commercial-style spot |
| UGC Ad Creator | An AI creator holding your product and talking to camera | You want a testimonial-style UGC ad |
| UGC Ad Wizard | Voice-over, b-roll cuts with your product and captions from one photo | You want a finished UGC edit from one photo |
| Ad Variants | Several versions of one ad | You are A/B testing angles |
| Product Demo | A product shown in action | You need a demo, not a commercial |
Read more: UGC Ad Creator · UGC Ad Wizard · Ad Variants · Product Demo Videos
Tips for ads that perform
A short, specific brief beats a long vague one.
- Name the product, the setting and the feeling in the concept line: “matte black headphones on a rainy rooftop at night, calm and premium”.
- List two or three must-have shots; more than that crowds a 5 to 15 second ad.
- Keep the tagline short enough to read in the final second.
- Render 9:16 for Reels, TikTok and Stories; 16:9 for YouTube and web.
- Draft on Seedance 2 Mini or Runway Gen-3, then render the winning script on Seedance 2, 2.5 or VEO 3.1.
- Use product photos as references when the exact packaging matters.
Frequently asked questions
What is an AI video ad generator?
Software that produces a promotional video from a brief instead of filmed footage. On VdoBloom you start from a template or a one-line concept, the AI writes the ad script, and a video model renders the ad.
Is the AI video ad generator free?
Script writing is free. Rendering uses credits, and new accounts get 10, enough for a 5-second test ad on Runway Gen-3 (720p) or Seedance 2 Mini (480p). One-time credit packs never expire.
How much does a video ad cost to make?
It depends on the model and length: a 5-second ad is 17 credits on Seedance 2 Mini at 720p, 50 on Seedance 2 Fast and 82 on Seedance 2; a VEO 3.1 Fast clip is 40 credits; a 15-second Seedance 2.5 ad at 720p is 378. The cost shows before you generate.
Can AI write the ad script and voiceover for me?
Yes. In AI Script Generator mode, type a short concept and leave the voiceover field blank; the AI writes the shot plan and the voiceover lines. You can also type your own lines, one per shot.
Can I make an ad from my product photo?
Yes. Add product photos as reference images in the settings panel; the script generator takes them into account, and models that accept reference images use them when rendering.
Which formats and sizes can I export?
MP4 at the aspect ratio you choose: 9:16 for TikTok, Reels and Stories, 1:1 for feeds, 16:9 for YouTube. Available resolutions depend on the model.
How long can an AI ad be?
The script generator plans ads of 5 to 30 seconds. Seedance 2.5 can render up to 30 seconds in one pass; other models have shorter limits listed in the model picker.
Can I make several versions of an ad for A/B testing?
Yes. Change the concept line, tagline or model and regenerate, or use the Ad Variants tab to produce several angles of one ad in a batch.
Do I need video editing experience?
No. The form takes plain-language input and the AI handles the shot plan and prompt. For later trims or captions you can use VdoBloom’s editing tools.