Synthesia

Synthesia lets you create professional-quality videos by typing a script. Instead of recording with a camera, booking talent, and editing footage, you write what you want said, choose an AI avatar to present it, and generate a finished video. The avatars look and move like real people — lip-synced, expressive, and available in 140+ languages.

What it does

Synthesia generates videos featuring AI-powered avatars that speak your script with natural lip-sync, gestures, and expressions. You choose from 230+ pre-built avatars (diverse ages, ethnicities, and styles) or create a custom avatar based on a real person (with their consent). The platform includes a video editor for adding text overlays, images, screen recordings, background music, and brand elements.

How it works in practice

The workflow is simple: write your script, choose an avatar and background, customise the visual layout, and generate. A typical 3-5 minute video generates in under 10 minutes. You can create training videos, product demos, marketing content, internal communications, and sales enablement materials without any video production skills or equipment.

The template library provides starting points for common use cases — onboarding videos, product explainers, how-to guides, and company updates. Each template is editable, so you can match your brand identity and content needs.

Synthesia's multilingual capability is particularly strong. The same script can be translated and generated in 140+ languages, with the avatar lip-syncing to each language naturally. This makes it practical for global organisations that need to produce training or communications materials for multilingual teams.

Where it excels

For corporate video production, Synthesia eliminates the entire production pipeline. No camera crew, no talent scheduling, no studio booking, no post-production editing. A single person can produce the same video that would typically require a production team and several days of work.

The consistency is also a strength. Your AI avatar delivers the same quality every time — no bad takes, no scheduling conflicts, no wardrobe changes. For organisations that need to produce large volumes of standardised video content (training libraries, product updates, compliance materials), this consistency is invaluable.

Where it falls short

AI avatars are convincing but not indistinguishable from real presenters. Careful viewers will notice subtle tells — slightly mechanical gestures, uncanny expressions in certain emotional ranges, and limited body language. For customer-facing marketing where authenticity matters, a real person on camera is still more effective.

The pricing is enterprise-oriented. The Starter plan at $22/month provides limited video minutes, while the Creator plan at $67/month offers more capacity. For high-volume video production, costs can be significant.

The business case

Synthesia's ROI calculation is straightforward: compare the cost of traditional video production (£2,000-10,000+ per video) with Synthesia's subscription cost. For organisations producing more than a few videos per quarter, the savings are dramatic. The time savings are equally compelling — days compressed into minutes.