Synthesia is an AI video platform that generates presenter-led videos from a script—no camera, no studio, no on-screen talent required. You type what you want said, choose an AI avatar, and Synthesia produces a video of that avatar delivering your script. It is primarily used for training content, internal communications, and product explainers.

What it is

Synthesia is a browser-based video creation platform. You write a script, select from a library of over 230 AI avatars (or create a personal avatar that looks like you), choose a voice from 140-plus languages and accents, add slides or screen recordings behind the presenter, and render a video. The avatars are pre-recorded actors who have consented to the use of their likeness, with AI lip-sync applied to your script. There is no timeline editing—it is closer to building a presentation than editing a video.

What it’s best at

• Creating training and onboarding videos at scale without scheduling people or booking studios
• Updating existing videos by editing the script—the avatar re-renders with the new text
• Producing the same video in multiple languages without hiring multilingual narrators
• Generating internal comms or policy update videos quickly from a written brief
• Building a consistent presenter brand across a large library of instructional content

How operators use it

An HR team at a 50-person company uses Synthesia to produce all employee onboarding videos. When a policy changes, they update the script and re-render in minutes rather than rescheduling a filming session. A consultancy delivering e-learning projects to clients uses Synthesia to localize course content into Spanish and Portuguese by changing the language setting—no additional recording needed. A SaaS company builds a library of product feature explainer videos, each two to three minutes, using a consistent avatar as a visual brand anchor.

Getting started & pricing

Synthesia offers a free tier with three monthly video credits (each credit generates roughly one minute of video) and a limited avatar selection. The Starter plan ($29/month billed annually) gives ten credits per month and access to the full avatar library. The Creator plan ($89/month) removes credit limits and adds a personal avatar. Enterprise plans include custom avatar creation, team collaboration features, and integrations with LMS platforms. Pricing has changed multiple times; verify current tiers at synthesia.io before committing.

Bottom line

Synthesia is the right tool for operators who need to produce a high volume of presenter-style videos and whose content is primarily informational rather than entertainment or brand marketing. The avatars are convincing enough for internal training and structured e-learning. They are not a match for polished brand campaigns where real human warmth matters. The update workflow—change the script, re-render—is the biggest operational advantage and is genuinely useful for teams whose content changes regularly.