BrandU vs Synthesia

Synthesia at a glance

Synthesia is an AI video communications platform. Enterprises use it for training, onboarding, internal comms and explainers. It turns a script, a deck, a document or a prompt into a video presented by an AI avatar. The library has 240+ stock avatars and 1,000+ voices across 160+ languages. It also has AI dubbing with lip-sync, and enterprise controls (SSO/SAML, SCORM and LMS export, SOC 2, ISO 42001).

How BrandU is different

Who should use which

Pick Synthesia to explain something clearly at enterprise scale, with compliance and localisation handled. Pick BrandU when the asset you care about is a video that already performs, and you need to keep testing versions of it.

What sends people looking for a Synthesia alternative

Synthesia is built to explain. A presenter, a slide, a script that teaches — it is optimised for clarity, and that is exactly right for onboarding and compliance. It is the wrong shape for a three-second hook that has to earn the next three seconds.

Per-minute billing rewards short videos. Synthesia prices by video minutes, so a 60-second ad and a 60-second training module cost the same. Social ads are cheap to test and expensive to iterate: the format that wins is the one you can afford to run twenty versions of.

Their avatar, not yours. Synthesia's library is the point - 230+ stock avatars in 140+ languages. But a stock presenter is a stock presenter. If your category converts on a founder talking to camera, or a creator holding the product, a library avatar does not get you there.

Nothing to reuse. Synthesia renders the video you asked for. When the product changes next month, you write a new script into a new render. The structure that worked is not saved anywhere you can re-run it.

There is also a discovery problem. Synthesia is excellent at the job it advertises, which is why it shows up first when someone searches for a video tool. The mismatch only becomes visible after you have paid: you have a polished explainer, and your ad account still has no winning creative.

That is not a failure of the product. It is a mismatch of jobs. So before you switch anything, work out which of the two problems you actually have.

Where Synthesia is the better pick

• Explaining things clearly at scale. That is the job it was built for, and it does it well — training, onboarding, SOPs, policy updates.
• Enterprise-grade controls. SSO/SAML, SCORM and LMS export, SOC 2 and ISO 42001, EU data residency. If your videos are compliance training, none of this has an equivalent here.
• Localisation. 160+ languages with one-click dubbing that keeps each speaker's voice.
• Bulk personalisation. One template plus a data table produces a version per recipient. BrandU cannot do this at all.
• A big avatar and voice library. 240+ stock avatars and 1,000+ voices to pick from.

It explains. We make things sell

Both make video. They are not solving the same problem. One turns a document into something watchable; the other takes a video that already works and puts your product inside it.

Synthesia's reference point is the document. You already know what you want to say, whether that is a policy, a procedure or a product walkthrough. It turns that into a video a person can watch. Its own comparison list puts it alongside Articulate and PowerPoint.

BrandU's reference point is the ad. You already know something works. A video is getting attention and converting. The job is to keep that structure, and to replace the product, the claims and the voice with yours.

One moves knowledge into video. The other moves a proven format onto your product. That is the split, and it decides which tool you should be using.

Why the starting point matters more than it sounds. Describe a video in words and you are drawing lots. The structure, the pacing and the hook are whatever the model happens to produce. If you want it better, you re-roll and pay again. Start from a video that already works and the structure is not a gamble. It is the thing you copied — the hook lands where the original hook landed, and the pacing is the pacing that already held people.

The script is a draft, not a commitment

In a per-minute tool, every version is a paid render. That pushes you to write carefully the first time and commit early - which is the opposite of how short-form ads get good. The winning hook is usually the fifth one you try.

Here, trying a different hook costs a segment, not a video. Change a line and only that part regenerates; change the order, the styling or an asset and the model is not called again.

You get to be wrong five times cheaply. That is the whole advantage.

Why the credits go so fast

Synthesia charges by generated minute — about 100 credits per minute of finished video — and an edit is recalculated as a new version. Its own documentation says so: "additional credits may be used depending on the changes you make."

Reviewers describe the consequence: "money is wasted because I need to regenerate the same videos, hoping that the error doesn't re-occur."

What you keep is not a finished file. It is the format itself: a video you can restyle, reorder, rewrite and re-render for the next launch. Once a video exists, changing it does not mean making it again.

So the twentieth variant costs roughly what the second one did, instead of another 100 credits per minute.

Synthesia pricing, and what ours looks like

Synthesia self-serve plans start at $29/month (Starter, 1,750 credits) and $89/month (Pro, 6,500 credits), with Basic at $0 on a 10-minute monthly allowance. Video creation runs about 100 credits per minute of finished video. Unused credits reset each billing cycle — there is no accumulation.

BrandU — from $9.90. Priced by subscription rather than by minute, so testing five hooks costs the same as testing one.

Synthesia vs HeyGen, and where BrandU fits

These two get compared constantly, and the difference is not really the feature list.

HeyGen's reference point is the creator: a talking avatar, a script, and a lot of short-form output. Synthesia's reference point is the enterprise document: a policy, a procedure, a training module, delivered in 160+ languages with the compliance paperwork to match. One is built for people who publish constantly. The other is built for organisations that have to explain something consistently.

BrandU is a third option, and it is narrower than both. You start from a video that already sells and keep the structure that made it work. Then you rebuild it with your product.

Why rendering is usually faster here

A per-minute tool renders minutes, and minutes take time. BrandU builds a video as independent segments: a 30-second piece is five 6-second segments. The segments are generated and rendered separately, so they run in parallel rather than queueing.

In practice a render typically finishes in under an hour. A restyle does not re-render the whole video from the top.

Long references or peak demand take longer. We would rather say that up front than advertise a guarantee we cannot keep.

Switching over

There is not much to migrate. What changes is what you start from.

• Nothing to re-create. BrandU starts from a link — no avatar library to rebuild, nothing to install.
• From a document to a video. If you have been starting from a deck or a policy, you can still paste a brief. But the fastest route here is a video that already performs.
• What does not transfer. Your Synthesia projects stay there; BrandU starts from the reference video itself.

When you should stay with Synthesia

Synthesia is excellent at something specific. If that is what you need, use it.

• You are explaining, not selling. Training, onboarding, policy, SOPs — that is the work it was designed for, and BrandU is not.
• You need bulk personalisation. One template plus a data table, one version per recipient. BrandU cannot do this at all.
• You need compliance and procurement sign-off. SOC 2, ISO 42001, EU data residency, SSO/SAML, SCORM and LMS export. None of that exists here.
• You are localising existing footage. One-click dubbing across 160+ languages, keeping the original speaker's voice.
• You need long-form or non-vertical output. BrandU produces short-form vertical video.

If you are producing training, onboarding or documentation, Synthesia is the better product and it will stay that way. If you are producing feed ads, you need a format you can re-run. That is a different job, and it is the one BrandU does.

What this looks like in practice