Synthesia
Enterprise video avatar platform — EU-hosted, async generation
TTFR Latency
Async
real-time
Cost / minute
~$2+/min
real-time
Visual Quality
9/10
estimated score
Protocols
REST, HTTPS
Avatar Customisation
RAG / Knowledge Base
Copilot feature (rolling out) connects avatars to custom knowledge bases. Script-driven responses for structured content.
Behavior & Personality
Behavior via script text and tone. Expressive avatars auto-adapt gestures to sentiment. Gesture tags in script (e.g., nod).
Body Language & Gestures
Expressive Avatars auto-generate gestures and body language from text sentiment. No manual per-gesture API control.
Facial Expressions
Automatic micro-expressions from text sentiment. New generation Expressive Avatars significantly more natural.
Voice & Voice Cloning
Voice cloning in 30+ languages preserving accent and dialect. High-quality clone requires paid plan.
Persona Fine-Tuning
Personal Avatars capture unique visual and vocal identity. Script-driven persona consistency.
Avatar Training
Best Practices
- 01.Face camera throughout, uniform lighting
- 02.Neutral stable background
- 03.Avoid excessive head movements
- 04.Natural expression, no exaggerated gestures
- 05.Explicit consent phrase recorded
API Analysis
Protocols
SDKs
Concurrent Sessions
N/A — async generation
Rate Limits
API access only on Creator and Enterprise plans
Key Features
- Create videos from scripts or templates
- Webhook notifications for video status
- Asset management API
- Video Agents (Synthesia 3.0 — real-time, in preview)
API Constraints
- No native WebRTC real-time streaming (async only for now)
- API access locked to Creator+ plans
- Generation latency: minutes, not milliseconds
- Video Agents (real-time) still in preview
Pricing Model
| Plan | Price | Included minutes | Overage |
|---|---|---|---|
| Starter | $18/mo | 10 min/mo video | N/A |
| Creator | $64/mo | 30 min/mo video | ~$2.13/min |
| Enterprise | Custom | Custom | Negotiated |
Hidden costs / watch out
- Voice cloning requires paid plan
- API access only on Creator+
Sovereignty & Hosting
Sovereignty Score
Hosting
AWS eu-west-1 (Ireland)
GDPR
YesOn-premise
NoSovereignty detail
AWS eu-west-1 (Ireland). ISO 27001, ISO 27701, SOC2 Type II. GDPR compliant. No on-premise.
Constraints & Limits
- No real-time WebRTC streaming (async only — Video Agents in preview)
- No on-premise option
- Manual micro-expression control limited
- Strict content moderation (no deepfakes without consent)
- API locked to Creator+ plans
DigiDouble Relevance
Score
6/10
Best EU sovereignty option. Excellent visual quality. Currently limited for real-time DigiDouble use case (async only), but Synthesia 3.0 Video Agents (in preview) may change this. Ideal for pre-recorded educational content.