How do I create a video using Assistant? | Synthesia Knowledge Base

How do I create a video using Assistant?

Learn how to create and refine a video using Assistant — a chat-based AI that helps you write scripts, select templates, choose a delivery style, and improve your video directly inside the Editor.

Written by Meg Farley
June 5, 2026

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:

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

  1. Select Start with Assistant.

  2. Select how you would like to start:

Prompt to video

  1. In the prompt field, clearly describe the video you want to create. Include:

    • The topic
    • The target audience
    • The objectives

  2. (Optional) Upload supporting materials:

    • PDFs
    • PowerPoint files
    • Word documents
    • URLs
    • Multiple files at once

  3. Set the video duration.

  4. Choose a Delivery style:

    • Cinematic — Shorter scenes with frequent cuts. Best for dynamic, fast-paced content.
    • Presentation — Longer, denser scenes with less frequent cuts. Best for content-heavy videos.

  5. Under Design, set your template and brand kit:

    • Template — Choose a Synthesia template or a custom workspace template.
    • Brand kit — Choose a brand kit to apply your brand colors, fonts, and logos ( Enterprise only).

  6. Select Create video.

💡 Ensure of a prompt? Use one of the example prompts in Assistant to help get you started.

Import script

If you already have a finalized script and want Assistant to use it without rewriting:

  1. In the prompt field, paste or type your script.
  2. (Optional) Select Attach to upload a script file.
  3. Under Delivery style, choose how your video is paced (see options above).
  4. Under Design, select your Template and Brand kit ( Enterprise only).
  5. Select Create video.

Create with legacy AI Assistant

Check out, How do I create content with the AI Video Assistant? to learn more.

Reviewing and Refining Your Video with Assistant

After selecting Create video, you’ll enter the Storyboard layout.

✍️ Storyboard is a macro-level view of your video where you can see:

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:

Assistant can:

💡 If you prefer scene-level editing, select 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?

Not yet. Assistant will eventually replace the legacy AI Video Assistant as it can provide a more powerful, iterative, chat-based experience.

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?

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?

“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.

📚 Want to get the most out of Assistant? Work through the Work Smarter with Assistant learning path in Synthesia Academy to master the full video creation workflow.