AI Video Generator
The AI Video Generator on DiagnoSEO lets you generate video from a prompt or a still image. Everything runs online in your browser, with nothing to install. Instead of a single model, you get several of the best AI models. You switch between them in one click.
That lets you compare results on the same input and keep the best one. You pay only for what you generate, in clear credits. The cost is shown before you run anything.
The tool is part of DiagnoSEO's AI toolkit. It is built on an established, trusted SEO domain.
Models you can use
Compare these models on the same input.
| Model | Best for |
|---|---|
| Seedance 1.5 Pro | Seedance with strong character consistency |
| Kling 2.6 | Kling 2.6 with strong, stable motion |
| Seedance 2.0 | ByteDance Seedance 2.0 with audio-video sync |
| Seedance 2.0 Fast | a faster, cheaper Seedance for drafts |
| Kling 3.0 | Kling 3.0 with multi-shot storyboards and 4K |
| Grok Imagine | xAI’s video model |
| Google Veo 3.1 | |
| Wan 2.5 | an open Wan model with audio, cheap to iterate |
| Sora 2 | OpenAI Sora 2 with strong physics and synced audio |
| Sora 2 Pro | the highest-quality Sora 2 tier |
| Happy Horse | an open model with joint audio-and-video generation |
| Hailuo 2.3 | MiniMax Hailuo 2.3 with fluid, stylized motion |
| Hailuo 02 | MiniMax Hailuo with strong real-world physics |
| Veo 3.1 Fast | a faster, cheaper Veo 3.1 for iteration |
| Wan 2.6 | the newer open Wan with 1080p and audio |
| Wan 2.2 | a very cheap, fast open Wan for testing |
| Seedance 1.0 Pro | the original Seedance Pro for 5-10s clips |
| Kling 2.6 Pro | top-tier Kling with cinematic motion and audio |
| Kling 2.5 Turbo | a fast, cost-effective Kling tier |
| Kling 2.1 Master | a premium Kling 2.1 with superb dynamics |
What you can do
- Short clips for Reels, TikTok and Shorts
- Ad creatives and product teasers
- B-roll and looping background motion
- Animated concepts and explainers
- Image-to-video from a single still
- Talking-style and narrative shots
- Promo, launch and event videos
- Fast prompt testing before a final render
- Social-first vertical and square formats
- Mood and style tests for a campaign
Common tasks
- Animated concepts and explainers
- Image-to-video from a single still
- Talking-style and narrative shots
- Promo, launch and event videos
- Fast prompt testing before a final render
- Social-first vertical and square formats
- Mood and style tests for a campaign
- Short clips for Reels, TikTok and Shorts
Who it is for
- Marketers and content teams
- E-commerce and product listings
- Agencies and freelancers doing client work
- Social-media creators and influencers
- Developers prototyping features
- Designers exploring concepts quickly
How to use it
- Choose a model that fits the task.
- Set your prompt, any input and the options.
- Click generate and wait a few moments.
- Download the result, or run another model.
Tips for better results
- Describe motion explicitly: camera moves, speed and what changes over time.
- Start short and at lower resolution to iterate cheaply.
- Re-run the best prompt at higher quality for the final clip.
- For image-to-video, use a clean, high-resolution first frame.
- Keep scenes simple. Complex multi-object motion is harder.
- Add audio cues in the prompt where the model supports it.
- Lock the look first, then increase duration.
- Note that longer clips and higher resolution cost more credits.
Choosing the right model
There is no single best model. Different models win at different tasks. Premium models give the highest quality. They can cost more.
Fast and open models are cheap. They are great for iterating and high volume. A simple approach works well. Test on a cheaper model, then run the final on the best one.
Outputs and formats
Results are standard image or video files. You can download and use them right away. They fit designs, product listings, ads and posts.
Image models output high-resolution files. Video models produce short clips for social and editing. You can generate many variations and download each one. It is easy to pick the best.
Why DiagnoSEO
You get many models in one place. You switch between them in one click. There are no separate accounts and nothing to install.
You pay per use in credits and see the cost up front. There are no hidden fees and no mandatory subscription.
Pricing
Billing is in credits. The cost of each generation is shown before you run it. It depends on the model and the options. For video, it also depends on length and resolution.
Getting started
Pick a model below. Write a clear prompt or upload your input. Set the options and click generate. Compare a couple of models and download the best version.
The best results come with practice. Try different prompts and models until you find your approach. Save the settings that work well so you can repeat results faster.
Prompt examples
Not sure where to start? Try the prompts below and adapt them to your subject.
- "slow camera push-in on a coffee cup with steam rising"
- "a drone shot flying over a misty forest at dawn"
- "a product turntable (slow 360° spin) of a sneaker on a seamless background"
- "a person waving at the camera, natural daylight, 5 seconds"
- "a city street at night, neon reflections, gentle parallax (camera drift)"
- "a paper plane gliding across a sunny office, smooth motion"
A strong prompt names the subject, the setting, the lighting or style, and the format. Keep one idea per generation. Refine in small steps instead of rewriting everything.
This is faster and cheaper while you experiment. It also gives you more control. Save the prompts that work. Keep a couple of variations of each result.
It depends on the task. Compare a few models and keep the best result.
Usually yes. Licensing depends on the specific model. Check each model's terms.
You can see how the tool works. Generating uses credits.
No. Everything runs in your browser, on desktop and mobile.
Yes, in one click. The form updates in place.
Yes. It runs in any modern browser on phone and desktop. There is nothing to install.
Yes. Every finished result can be downloaded right away.
Where the tool accepts input, yes. Upload a file or paste a public URL.
You can try again or pick another model. You only pay for completed generations.