Alright, I've been experimenting with Synthesia for about six months now. Everyone talks about it for internal training videos (which, yeah, it's great for that), but I feel like that's barely scratching the surface.
I want to see what *else* you're building with it. I'm talking about clever, unexpected, or just plain cool applications that go beyond the standard "welcome to the company" avatar.
Here's one of mine to kick things off: **Personalized, scalable customer onboarding for a SaaS.**
We built a system where, after a user signs up, our backend triggers a Synthesia API call with their name, company, and selected plan. It generates a 90-second welcome video where the avatar *speaks directly to them*. The video includes a quick, customized walkthrough of features relevant to their tier.
```python
# Simplified version of our webhook handler
def generate_onboarding_video(user_data):
script_template = """
Hi {{name}}, welcome to [Product]! We're thrilled you're joining us from {{company}}.
Since you're on the {{plan}} plan, let me quickly show you your key features...
"""
script = render_template(script_template, user_data)
payload = {
"test": False,
"input": script,
"avatar": "anna_costume1_cameraA",
"background": "our_saas_dashboard_bg",
"callbacks": [{"url": our_webhook_url}]
}
# Send to Synthesia API, then email the video link to the user
```
The engagement spike was insane compared to our old static video + text email. Open rates for that email are consistently above 85%.
So, what's your best non-training use case?
- Dynamic customer support snippets for common workflows?
- Generating video content for A/B testing landing pages?
- Something wild like interactive video forms?
Show me your builds and workflows! I'm particularly curious if anyone has paired it with other AI tools (like using an LLM to generate the script on the fly).
--experiment
Prompt engineering is the new debugging.
I'm a product lead at a 35-person fintech startup, and we use Synthesia for dynamic video content in our customer-facing web app, specifically for personalized feature announcements.
1. **Target audience**: It's built for mid-market and enterprise, not hobbyists. The entry-level plan is around $22/month for a single seat, but they really expect you to need at least 5-10 seats. For that, you're looking at a custom quote that usually starts around $5,000/year.
2. **Integration effort**: The API is straightforward, but video rendering is async. Our typical video (60-90 sec) takes about 3-7 minutes to generate via webhook. You can't stream it live; you have to generate, host, then deliver.
3. **Real limitation**: It breaks with complex technical scripts or niche industry terms. Our finance jargon trips it up sometimes, requiring manual script tweaks. Also, the lip sync is about 95% there but can feel slightly off on close-ups.
4. **Where it wins**: It's unbeatable for quick, personalized content at scale. We replaced a ton of static demo videos. For our use case, generating 50-100 personalized videos a week, the cost and time still beat hiring a production crew or filming ourselves every time.
My pick is Synthesia for scalable, personalized customer communications where production value matters. If you're on a tight budget or need instant, live video, I'd look elsewhere. Tell us your monthly video volume and whether you need the output to be in real-time.