Whether you’re an entrepreneur looking to boost your communications, a trainer keen to create interactive e-learning modules, or a content creator looking to boost productivity, these solutions offer a new way to quickly produce engaging videos. In this comparison, discover the 7 best AI tools for generating videos in 2025, their strengths, their limitations and the use cases where they particularly shine.
What is an AI video generator?
A AI video generator video generator is software that uses artificial intelligence to automatically produce a video from text, images or simple instructions. It combines several technologies: natural language processing, speech synthesis, digital avatars and visual generation.
In concrete terms, these tools are capable of doing in a matter of minutes what previously required several trades: scriptwriter, videographer, editor and actor. Some focus on corporate uses (presentations, training, HR videos), others on artistic creation (clips, short films, social content). The benefits are obvious: a virtual production studio, permanently available and accessible even to non-experts.
The 7 best AI video generators in 2025
Vexub is a particularly popular tool for creating marketing and educational videos. Designed to quickly transform an idea or script into professional content, it’s easy to use and offers a wide range of templates. Whether you want to present a product, animate an advertising campaign or illustrate a tutorial, Vexub simplifies the process.
One of its great strengths is its ability to produce videos adapted to digital formats: social networks, sales presentations, interactive newsletters. This makes it possible to create high-impact content without the need for an editor or external agency, making it a valuable ally for small structures and freelancers.
Benefits
- Ready-to-use videos in minutes
- Ideal for Youtube, tiktok and instagram videos
- Square video, portrait, landscape
Disadvantages
- Unsuitable for videos longer than 15 minutes
- Customization sometimes limited
Synthesia is one of the pioneers of AI video, and remains a benchmark today. Its specialty? Realistic avatars capable of expressing themselves in over 120 languages with precise lip-synchronization. This realism makes them the preferred tool of major corporations for their official communications.
It is particularly used in the training and human resources sectors, as it enables the production of coherent, professional instructional videos without the need for studio shooting. For an international company, Synthesia represents a considerable saving: translate and broadcast a message anywhere in the world in just a few hours.
Key features
- Photorealistic AI avatars
- Synchronized voice-over generation
- Support for 120+ languages
Benefits
- Ultra-professional rendering
- Multilingual for an international audience
- Perfect for training and corporate
Disadvantages
- Less suitable for creative videos
- Higher rates
Heygen is all about versatility and accessibility. You write a text, select an avatar and get an engaging video in minutes. Its strength lies in offering a simple user experience, while leaving more room for personalization than some of its competitors.
The tool is ideal for SMEs, freelancers and independent creators who want attractive videos for their social networks, business presentations or online courses. Thanks to a diverse library of avatars and options, Heygen lets you create content that retains a human touch.
Key features
- A variety of customizable avatars
- High-definition export
- Fast video generation
Benefits
- Easy to handle
- Good value for money
- Ideal for SMEs and the self-employed
Disadvantages
- Limitations on free plans
- Not suitable for highly creative videos
Vidnoz primarily targets marketing and sales teams. Unlike other AI video generators, it integrates performance tracking and CRM integration functions, making it a strategic tool for B2B.
With Vidnoz, a company can create personalized videos for each prospect, distribute them directly via email and measure the impact of the campaign. It’s a truly automated video-marketing solution, optimizing conversion while enhancing the customer experience.
Key features
- Customizable AI avatars
- Ready-to-use marketing templates
- CRM and emailing integration
Benefits
- Personalized and engaging videos
- Sales and prospecting-oriented models
- Ideal for B2B campaigns
Disadvantages
- Unsuitable for artistic projects
- Premium subscriptions
Veo 3developed by Google DeepMind, represents a major technological leap forward in AI-based video generation. Unlike other tools, which mainly create presentations, Veo 3 generates ultra-realistic cinematographic sequences from simple text descriptions.
The results are impressive in terms of fluidity of movement, richness of detail and coherence of long scenes. This tool has not yet been democratized, but it promises to transform audiovisual creation for filmmakers, studios and artistic creators in search of realism.
Benefits
- The most advanced realism on the market
- Ideal for artistic and visual projects
- Backed by the power of Google
Disadvantages
- Not yet accessible to all
- Premium subscriptions
Runway is a hybrid platform combining generative AI and video editing tools. You can generate sequences from a prompt, edit existing videos, delete elements, or add sophisticated visual effects.
It’s a popular tool for visual artists and videographers who want to push back the boundaries of traditional editing. Runway democratizes techniques previously reserved for the big studios and makes them available to freelancers.
Key features
- Video sequence generation
- Integrated assembly tools
- Advanced visual effects
Benefits
- Modern, intuitive interface
- Unlimited creativity
- Perfect for designers and videographers
Disadvantages
- Less suitable for corporate use
- High rates
Fliki is a tool designed to transform text into video with AI voiceover. It is widely used by content creators who want to convert their blog posts or scripts into YouTube, TikTok or LinkedIn-ready videos.
Fliki’s great strength lies in its realistic voice-overs and automatic subtitling system. This makes written content much more attractive and accessible, especially on social networks where video is dominant.
Key features
- Converting text to video
- Realistic and varied AI voices
- Formats for social networks
Benefits
- Ideal for content creators
- Fast, simple and efficient
- High-quality voice-over
Disadvantages
- Pretty basic videos
- Few creative possibilities
FAQ
Yes, tools like Synthesia or Heygen produce high-quality corporate videos without cameras or studios.
Vidnoz is designed for B2B sales, while Fliki is ideal for social networks.
Veo 3 and Runway offer the most photorealistic and creative rendering.
Yes, Fliki and Runway offer limited free versions for testing purposes.
Synthesia targets large corporations with highly realistic avatars, while Heygen focuses on accessibility and simplicity for SMEs and freelancers.
