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Video generation in Flint

Learn how to generate videos on Flint, including best practices and what types of videos Sparky can create.

Written by Sun Paik

This feature was released on February 28, 2026. This article was last updated April 23, 2026.

You can now ask Sparky to generate videos to support multimedia learning. In this article, we'll be covering:

  1. How do you generate a video?

  2. How do you edit, download, or share the generated video?

  3. How do you customize voice, language, and speaking rate?

  4. What are best practices for video generation?

  5. Are there any limitations to the video generation feature?

📌 You can generate videos alongside other content types in a single request to Sparky.

How do you generate a video?

Ask Sparky to generate a video both in chats and activities.

  1. Navigate to the Flint home screen and start a new chat or activity with Sparky by clicking on "My chats" or "My activities".

    Screenshot of Flint's home screen, where you can create a chat or activity

  2. Ask Sparky to create a video by using the chat box

    (e.g. "Generate a video on the American Revolution for my 6th grade class")

    Screenshot of chat window where user has asked Sparky, "Generate a video that gives an overview of the American Revolution to my 6th grade history students."

  3. Optionally include a document or link for additional context using the plus icon. Click on the paper clip icon to attach files from your computer, Google Drive, or Microsoft One Drive.

    Screenshot showing capability to share document, attach files, slides, or share a link with Sparky for additional context

  4. Let Sparky create the video

    It may take a minute or two for Sparky to generate the video. Do not exit out of your window while Sparky is generating!

    Screenshot of Sparky generating video, and loading screen that shows up while video is being created

How do you edit or download the generated video?

How to edit the generated video

You can make modifications to the video by simply asking Sparky. In this example, I've asked Sparky in the chat box to make my video on the American Revolution focus more on key events in a timeline format.

Screenshot showing user asking Sparky "Can you actually make it more a timeline overview with key events"

How to download the generated video

To download the video, click the download icon that appears above the generated video.

Screenshot showing how to download generated video by clicking the download icon

How do you customize voice, language, and speaking rate?

Generated videos also support custom voice, language, and speaking rate settings. There are two ways to customize these:

Customizing via build manually in activity settings

When generating videos within an activity, Sparky automatically uses the activity's configured voice, language, and speaking rate. To change these defaults:

  1. Open your "Activity settings"

    Screenshot showing a user opening "Activity settings"

  2. Click "Build Manually"

    Screenshot showing activity builder, where you can toggle between build with sparky and build manually on the top center of your screen.

  3. Click "Language"

    Screenshot of the language icon that appears in the lefthand sidebar after you click "Build Manually," which takes you to Language settings

  4. Configure your preferred voice, language, and speaking rate

    There are currently 9 available voice options, each with their own tone and style.

    Screenshot showing the Sparky primary language voice options open, showing all of the customization features

  5. Click "Update activity"

    Screenshot that shows how to save your customizations by clicking "Update activity," a blue button at the top right of your screen.

    Any videos generated in that activity will now use these settings.

Asking Sparky

You can also request specific voice, language, or speaking rate settings directly in your message to Sparky, which can occur both in chats and in "Build with Sparky" for activities.

Screenshot of a teacher asking Sparky to generate a video in Spanish using a feminine voice to explain photosynthesis.

For example:

  • "Generate a video in Spanish about photosynthesis"

  • "Create a video with a slower speaking rate for my ELL students"

  • "Make a video using the Blake voice"

Both the narration and any on-screen text will render in your selected language.

What are best practices for video generation?

We suggest that you...

Tell Sparky how to teach

Be specific about the audience, including things like grade level, background knowledge, and learning objectives. You can also provide context such as:

  • Pasting notes or curriculum text

  • Attaching documents, like a syllabus or slides

  • Including links to readings or resources

Additionally, you can ask Sparky to include examples, analogies, or step-by-step explanations in the video.

Be clear that you want a generated video

When you want Sparky to make a video, make sure to use language like:

  • "Create a video on..."

  • "Generate a video about..."

  • "Make a video that explains..."

The clearer you are about what format you want, the more helpful Sparky will be!

Combine with other content types

You can request videos along with other materials in a single message:

  • "Create a video on photosynthesis and slides that go into more detail on each step"

  • "Generate a video introducing the topic and a quiz for students to complete afterward"

Are there any limitations to the video generation feature?

Currently, there are a few limitations to the video generation feature:

  • Videos are approximately 90 seconds long

  • Currently, videos do not have the watermark feature

  • Output format is MP4

  • Video resolution is 1236 x 1024 pixels

You can always follow the what's new page to see updates, as we always are working to improves our features and aim to broaden the capabilities of tools such as video generation.

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