Synthesia vs HeyGen
A comprehensive comparison to help you choose the best AI video maker for your needs in 2025.
Synthesia
Synthesia is the leading AI avatar video platform for corporate training and internal communications. It generates realistic AI presenters that speak over 140 languages, perfect for global enterprise content at scale.
HeyGen
HeyGen creates AI avatar videos for personalized sales outreach and marketing campaigns. The platform focuses on realistic human-like avatars that can be customized for brand representation.
Who Should Choose Each Tool?
Choose Synthesia if...
- You need corporate training, hr videos
- You can invest $29-$99/month
- You prefer template-based workflows
- Desktop workflow is preferred
Choose HeyGen if...
- You need sales videos, personalized outreach
- API integration is required
- Team collaboration is essential
- Built-in voiceover is important
Key Differences
Pricing Approach
Synthesia starts at $29-$99/month, while HeyGen offers $29-$89/month. Consider your budget and required features when choosing.
Target Audience
Synthesia is optimized for corporate training, hr videos. HeyGen excels with sales videos, personalized outreach. Choose based on your primary use case.
Free Tier Quality
Both tools add watermarks on free exports. For truly free, watermark-free videos, Vivideo is the better choice.
Technical Capabilities
Synthesia offers Proprietary avatars with 30 min video length. HeyGen provides Proprietary avatars with 5 min per video video length.
Detailed Comparison
| Feature | Synthesia | HeyGen | Vivideo ⭐ |
|---|---|---|---|
| Pricing | $29-$99/month | $29-$89/month | Free / Premium |
| Free Option | |||
| Watermark on Free | |||
| AI Models | Proprietary avatars | Proprietary avatars | Kling, Runway, Luma, Veo |
| Export Formats | MP4 | MP4 | MP4, MOV, GIF |
| Max Video Length | 30 min | 5 min per video | Up to 2 min free |
| AI Voiceover | |||
| Templates | |||
| Mobile App | |||
| Chrome Extension | |||
| API Access | |||
| Team Collaboration | |||
| Best For | Corporate training, HR videos | Sales videos, personalized outreach | Social media creators, marketers, beginners |
Limitations to Consider
Synthesia Limitations
- No free tier available
- Watermark on free exports
- No mobile app available
- No browser extension
HeyGen Limitations
- Watermark on free exports
- No mobile app available
Our Verdict
Both Synthesia and HeyGen are solid choices, but each has its strengths and weaknesses. Your choice depends on your specific needs, budget, and the type of content you want to create.
Why settle for limitations? Vivideo offers the best of both worlds.
Why Choose Vivideo Instead?
- 100% Free with no watermarks - create unlimited videos without paying
- AI-powered text-to-video and image-to-video generation
- Professional quality output ready for TikTok, YouTube, Instagram
- No credit card required - start creating immediately
- Available on web, iOS, Android, and Chrome extension
Frequently Asked Questions
Which is better, Synthesia or HeyGen?
Both tools have their strengths. Synthesia excels in certain areas while HeyGen has advantages in others. For a free alternative that combines the best features, consider trying Vivideo.
Is there a free alternative to Synthesia and HeyGen?
Yes! Vivideo is a completely free AI video generator with no watermarks. It offers features comparable to both Synthesia and HeyGen without the monthly subscription costs.
Can I switch from Synthesia or HeyGen to Vivideo?
Absolutely! Vivideo is designed to be easy to use for everyone. You can start creating videos immediately with no learning curve. Simply visit app.vivideo.ai to get started.
What makes Vivideo different from other AI video tools?
Vivideo stands out by being truly free without watermarks, offering unlimited video creation, and providing a seamless experience across web, mobile, and browser extension. It is the only AI video generator that combines professional quality with zero cost.