Tools
The best AI video generators in 2026, compared by what you need
By the ManyMotion team · · 11 min read
Dozens of tools now promise to "create a video with AI". In reality, they do very different things: some generate cinematic shots, some make an avatar talk, some assemble stock footage over a script, others edit your own footage. The best AI video generator depends on what you want to publish. Here are 8 tools compared honestly, including ours, with what each one is best at.
The comparison at a glance
| Tool | What it does best | Indicative starting price* |
|---|---|---|
| ManyMotion | Complete, ready-to-post videos (ads, UGC, Reels, editing) by chatting | First video $3, then credits from $7 or $15/month |
| Runway | AI-generated cinematic shots, creative effects | About $15/month |
| HeyGen | Talking AI avatars, video translation | About $29/month |
| Synthesia | Training and internal comms videos with avatars | About $18–29/month |
| InVideo AI | Stock-footage videos from a script | About $17–25/month |
| Pictory | Turning articles or long videos into clips | About $25–29/month |
| Canva | Simple visuals and videos from templates | Free plan, paid plans |
| CapCut | Full manual editing, free and hugely popular | Very complete free version |
*Public prices checked in October 2026 and subject to change: always check each tool's website.
How to choose: 4 questions to ask yourself
- Do you want a finished video or shots to assemble? Shot generators (Runway, and models like Veo or Kling) produce stunning images, but you still need editing, voice, music and text.
- Do you need a person on screen? For a talking presenter, look at avatar tools (HeyGen, Synthesia) or AI UGC video.
- Are you starting from your own footage? If you filmed it, an AI editor saves more time than a generator.
- How many videos per month? A $30/month tool for one video a quarter is expensive: prefer credits with no subscription.
1. ManyMotion: best for publishing a complete video with no skills
ManyMotion works like a video team in a chat. You describe your video ("a 20-second TikTok ad for my pizzeria") or drop your footage: the AI writes the script, creates realistic scenes, a person talking to camera if needed, the voice-over, original music and captions, and edits everything together. You make changes by typing ("shorter hook", "make it vertical").
- Strengths: finished video in minutes, AI UGC and avatars, editing of your filmed videos, 5 languages, 9:16, 1:1 and 16:9.
- Limits: no frame-by-frame control like an editing app; less suited to highly artistic films.
- Price: first video $3 instead of $5, then credits from $7 with no subscription, or plans from $15/month.
- Best for: small businesses, creators, marketers and agencies who post often.
2. Runway: best for creative, cinematic shots
Runway is a reference for generating video shots from text or an image, and for creative effects. It creates footage, not finished videos: you then assemble your shots in an editor.
- Best for: filmmakers, editors and creatives who want original shots.
- Limit: credits cap the seconds you can generate; voice, music and editing are done elsewhere.
3. HeyGen: best for avatars and video translation
HeyGen specializes in talking avatars and video translation with lip sync. Very effective for sales, onboarding or personalized messages.
- Best for: marketing, sales and training teams who want a face on screen.
- Limit: mostly a talking-presenter format, less designed for fast-paced multi-scene ads.
4. Synthesia: best for corporate training
Synthesia is widely used by HR and L&D teams: e-learning modules, procedures and internal comms, with avatars and many languages.
- Best for: large companies, trainers, tutorials.
- Limit: corporate style; less suited to social media and ads.
5. InVideo AI: best for stock-footage videos from a script
InVideo AI turns an idea or script into a video illustrated with stock footage and a voice-over. Handy for informational YouTube videos.
- Best for: YouTube creators and quick explainers.
- Limit: generic stock footage that doesn't show your product.
6. Pictory: best for repurposing content
Pictory starts from a blog post, script or long webinar and turns it into short captioned clips.
- Best for: content marketing, repurposing podcasts and webinars.
- Limit: fairly standard output, little original creation.
7. Canva: best if you already make all your visuals there
Canva offers video and AI features in a tool many already use for visuals. Good for a simple on-brand video from a template.
- Best for: small teams centralizing all their visuals.
- Limit: video is a side feature; you assemble everything yourself.
8. CapCut: best free editor, if you like editing
CapCut isn't a generator in the strict sense: it's a very complete free editor with some AI features (captions, effects). Great if you like controlling every detail.
- Best for: creators who enjoy editing.
- Limit: every video takes editing time.
Our recommendation by profile
| Your need | Recommended tool |
|---|---|
| Posting ads, Reels and TikToks every week without skills | ManyMotion |
| Original shots for a film or music video | Runway |
| An AI presenter for internal training | Synthesia or HeyGen |
| Translating an existing video with lip sync | HeyGen |
| Repurposing articles and webinars | Pictory |
| Editing yourself for free | CapCut |
Frequently asked questions
What is the best AI video generator?
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It depends on your need. For a complete ready-to-post video (ad, UGC, Reel), ManyMotion. For cinematic shots, Runway. For a training avatar, Synthesia or HeyGen. To edit yourself for free, CapCut.
Is there a free AI video generator?
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Several tools have a limited free plan, often with a watermark. CapCut is free but you edit yourself. With ManyMotion, your first complete video costs $5, with no watermark.
Can an AI video show my real product?
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Yes with some tools: with ManyMotion, you upload your product photo and it's reproduced exactly in the scenes. Stock-footage generators don't show your product.
Can I use AI videos in ads?
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Yes, as long as music and visuals are royalty-free (they are with ManyMotion) and you don't make false claims or fake testimonials.