Synthesia

Add burned-in captions to dubbed videos in one click, so your localized content stays accessible and easy to follow, even with sound off.

Bring WebP files straight into the editor—use still or animated WebP on the canvas, keep transparency, and skip manual file conversions.

Pick 720p, 1080p, or 4K when generating B-roll, so you can iterate faster, control quality, and manage credits more predictably.

Create an on-brand Synthesia video without leaving ChatGPT or Claude. Describe what you need, pick a style, and generate a video in minutes.

Share the base person for an avatar with teammates or your whole workspace so they can create new outfits for it and use it to generate media.

Preview an avatar's animations for a single scene from the editor, so you can review and iterate on avatar performance without generating or re-generating the whole video.

Create up to 20 seconds of B-roll with natively synced audio — and drop polished clips into your video in seconds.

The Assistant now adds curated AI video b-roll featuring your Avatar—automatically matched to your scene, delivered in seconds, and free on all plans.

Purchase credits and set automatic top-ups so long-running jobs don’t fail when your balance runs low.

Get a clear breakdown of credit usage with a new Billing API endpoint, so you can reconcile spend and troubleshoot changes with confidence.

Motion Graphics now use your brand kit fonts by default, and update automatically when you switch brand kits—so every graphic stays on-brand.

Reassign, create, and rename speakers in a dubbed video with one click—available on Enterprise plans.

Design any scene with Layouts: a library of 100+ ready-made designs right in the Editor, with instant theme previews and one-click swaps in Storyboard.

Browse Featured voices, filter by language or accent, and preview instantly, all in a bigger, easier-to-scan voice picker.

Bulk download up to 20 videos as individual .mp4 files—from multi-select or from a folder—so you can skip the one-by-one workflow.

Upload and dub up to 10 videos in one go—set languages and options once, then let every file process in the background.

Translate videos without text overflow—translations adapt to each text box, and long strings scale down to keep your slides looking polished.

Set custom duration, aspect ratio, and visual references when generating B-roll videos and images.

More faithful PowerPoint imports with better text parity, table support, and automatic scripts when speaker notes are missing.