What is Assistant?
Assistant is a chat-based AI agent built directly into Synthesia that helps you create and refine videos from start to finish. Because it’s agentic, Assistant doesn’t just suggest improvements — it can take action inside your video, updating scripts and visuals for you in real time.
It can:
Turn a prompt (and supporting files) into a complete first draft
Write and improve your script
Create and update visuals
Suggest ways to make your video more engaging
Instead of generating a video in one attempt, Assistant works with you through iteration — so you can refine your video step by step inside the Editor.
How to create a video with Assistant
Click Start with Assistant.
Select how you would like to start:
Generate video - Create from prompts, files, and URLs
Import script - Use an existing script verbatim
Use template - Continue with our legacy AI Video Assistant
Generate video:
In the prompt field, clearly describe the video you want to create. Include:
The topic
The target audience
The objectives
Set the video duration.
Pick a Style.
(Optional) Upload supporting materials:
PDFs
PowerPoint files
Word documents
URLs
Multiple files at once
Click Create video.
Import script:
If you already have a finalized script and want Assistant to use it without rewriting:
In the prompt field, paste or type your script.
(Optional) Upload a script file.
Pick a Style.
Click Create video.
Use template:
Template support is coming to Assistant soon. In the meantime, continue with our legacy AI video assistant to create a video from any source with the ability to select custom templates and brand kits. Check out, How do I create content with the AI Video Assistant?, to learn more.
💡 Example of a strong prompt:
"Create an onboarding video for new product managers at a fintech company. The goal is to explain our product development lifecycle and key collaboration tools. Keep the tone professional but friendly."
The more relevant context you provide, the stronger your first draft will be.
Reviewing and refining your video with Assistant
After clicking Create video, you’ll enter the Storyboard layout.
✍️ Storyboard is a macro-level view of your video where you can see:
Script on the left
Scene visuals in the center
The Assistant chat panel on the right
This layout allows you to review and refine your entire video in one place.
Use the Assistant chat panel to iterate on your video. You can ask it to:
Make the video shorter
Adjust the tone (e.g., “Make this more executive”)
Improve engagement
Rewrite specific scenes
Change visuals
Suggest improvements
Assistant can:
Create and revise scripts
Update visuals
Generate relevant images
Provide feedback on how to improve your video
💡 If you prefer scene-level editing, click Collapse in Storyboard to return to the traditional canvas view. You can switch between Storyboard and canvas at any time.
💬FAQs
Is Assistant a replacement for the AI Video Assistant?
Is Assistant a replacement for the AI Video Assistant?
Not yet. Assistant will eventually replaces the legacy AI Video Assistant as it can provide a more powerful, iterative, chat-based experience.
Does Assistant consume credits?
Does Assistant consume credits?
No. Assistant is free to use and does not consume credits.
Will my Assistant chat history be saved if I leave or refresh the page?
Will my Assistant chat history be saved if I leave or refresh the page?
Yes. Your Assistant conversation persists and is private to you, so you won’t lose progress if you leave and return later.
What does “agentic” mean?
What does “agentic” mean?
“Agentic” means Assistant can take actions on your behalf, such as writing a script or creating visuals. These actions are limited to the capabilities we’ve enabled inside Synthesia.