Runway
Runway
4.0
A generative video studio with the deepest set of editing and control tools for filmmakers
VideoFreemium
Synthesia
AI avatar video for training, onboarding and internal communication at enterprise scale
3.5
by SynthesiaUpdated Overview
Synthesia turns scripts into presenter-led videos using synthetic avatars and voices across many languages. It targets corporate learning and communications teams that need to produce and update video without a studio.
Key capabilities
- Stock avatars
- Custom avatars
- Multilingual voices
- Script to video
- Slide import
- Video translation
- Brand templates
Strengths
- Updating a video means editing the script, which makes maintenance genuinely cheap
- Multilingual output removes the cost barrier to localizing training content
- Consent and identity controls around custom avatars are stronger than most competitors'
- Templates and slide import let non-video teams produce consistent output
Limitations
- Avatars still read as synthetic, which undermines anything requiring warmth or persuasion
- Gesture and expression range is narrow, so longer videos become monotonous
- Per-seat pricing is steep relative to the narrow set of formats it produces well
- Poor fit for marketing, storytelling or anything where production value signals credibility
Synthesia solves a specific corporate problem: compliance and product training videos go stale, and re-shooting them requires a presenter, a studio and a schedule. Replacing the presenter with an avatar turns a re-shoot into a text edit.
That is a real efficiency, and it is why adoption concentrates in learning and development rather than marketing. Internal audiences tolerate a synthetic presenter when the alternative is a slide deck. External audiences read the same avatar as a signal that the company did not care enough to film a person.
The quality gap is narrowing but has not closed. Lip sync and voice are good; micro-expression, gesture and timing are not, and the deficit becomes obvious past a couple of minutes. Script for short segments, use it where information transfer is the goal, and keep it away from anything that depends on trust.
Similar options
Choosing an AI stack for your team?
We help companies pick the right AI tools, wire them into existing systems and avoid the ones that quietly do not scale. Tell us what you are trying to build and we will tell you what we would use — no charge for the conversation.
The AIInsider Briefing
The AI signal without the hype — new models, tools worth your time and what actually shipped. One email, no vendor pitches.