HeyGen and Synthesia are the two heavyweights of AI avatar video, and they're the shortlist for almost anyone building faceless or localized content. They're more alike than different, so the decision comes down to nuances: HeyGen leans toward realism and creator flexibility, Synthesia toward polished, structured educational video. Here's the head-to-head.
HeyGen
More natural avatars, faster custom avatar and voice cloning, and a more creator-friendly feel. Choose Synthesia if you need its huge avatar library for structured training content.
| Tool | Best for | Starting price | Free option | Our rating |
|---|---|---|---|---|
| HeyGen | Lifelike avatars and voice clones | Free | Yes | 4.5 / 5 |
| Synthesia | Training, courses and explainers | Free | Yes | 4.4 / 5 |
SaaS pricing changes frequently. The figures below were accurate on the date we last verified them — always confirm the current price and plan limits on the tool's official website before subscribing.
HeyGen
HeyGen produces the more convincing talking-head, with excellent lip-sync and quick personal avatar and voice creation. It feels built for individual creators who want realism without a steep setup.
| Plan | Price | Includes |
|---|---|---|
| Free | Free | Limited credits, Watermarked, Stock avatars |
| Creator | $29/mo | No watermark, Personal avatar, Longer videos |
| Team / Business | From $30/seat/mo (billed annually) | More seats, Higher credits, Brand controls |
Key features
- Highly realistic avatars
- Fast custom avatar and voice cloning
- Video translation
Pros
- Best realism
- Easy custom avatars
- Great translation
Cons
- Credit-based limits
- Costs climb with volume
The better pick for creators who want the most lifelike presenter with minimal fuss.
Synthesia
Synthesia is the more established, enterprise-friendly platform, with a large avatar library, many languages and a slide-like editor that suits structured, repeatable content such as courses and training.
| Plan | Price | Includes |
|---|---|---|
| Free | Free | Limited minutes, Stock avatars |
| Starter | $18/mo (billed annually) | 10 minutes/mo, Standard avatars |
| Creator | $64/mo (billed annually) | 30 minutes/mo, 180+ avatars, 5 personal avatars |
Key features
- 180+ avatars, 140+ languages
- Structured slide editor
- Team and brand tools
Pros
- Huge avatar library
- Great for structured video
- Reliable and polished
Cons
- Minute caps on lower tiers
- Feels more corporate than creator-first
The stronger choice for education, training and corporate-style content.
Frequently asked questions
Which is more realistic, HeyGen or Synthesia?
Which is cheaper?
Can both clone my voice and face?
The bottom line
Pick HeyGen for the most realistic avatars, easy voice cloning and a creator-friendly feel; pick Synthesia for its large avatar library and polished workflow for courses and training. Both have free plans, so test avatar quality with your own script before committing — and confirm current pricing on each official site, as credit limits change often.