Corporate AI Video with Synthesia: Turning a Technical Brief into a Kleidos Explainer
My earlier experiments tested AI video in layers: first, I cloned my voice with ElevenLabs; then, I built a HeyGen digital twin to speak with those clones. This one is corporate video: can Synthesia turn a dense technical brief into a usable business video for training, onboarding or product explanation?
The source was real: a product brief for Kleidos, an oncology genomics platform for molecular tumor boards, written as dense documentation rather than a script. Producing a polished avatar video was not the hard part; the real question was whether Synthesia could preserve the meaning.
What Synthesia actually is
It is not a deepfake tool. It is closer to an animated PowerPoint that presents itself: slide-based explainers where a synthetic presenter reads a script over titles, visuals and transitions.
The value is not copying a person. The value is turning company knowledge into repeatable video.
That separates it from HeyGen, which is better suited to creator video and personal digital twins. In corporate video, the bottleneck is rarely the recording. It is turning dense documentation into something clear enough for sales, support or training without losing the technical substance.
The plans
Pricing changes over time, so verify before purchase. At the time of this test:
| Plan | Price | Main limits | Best fit |
|---|---|---|---|
| Basic | USD 0 | 10 minutes per month, limited avatars | Testing the platform |
| Starter | USD 29/mo, or USD 18/mo billed annually | 120 minutes per year, 125+ avatars | Individuals and occasional videos |
| Creator | USD 89/mo, or USD 64/mo billed annually | 360 minutes per year, interactive video, API and team features | Recurring corporate production |
| Enterprise | Custom | Higher limits, SCORM, SSO and brand controls | Training, LMS and larger teams |
Interactivity and team features start at Creator. SCORM, SSO and brand control are Enterprise features.
The avatar and the voice
Synthesia builds avatars in two ways: image-based, from a single image in minutes, or video-based, from a short recording using auto-alignment.
Voice cloning is available too: upload a sample, pair it with the avatar and generate speech across 30+ languages. Both avatar creation and voice cloning require consent.
For a corporate explainer, the presenter does not need to be real. A stock avatar and voice are often enough. The point is not identity, but consistency: one format that can be updated without re-filming and localized with much lower production overhead.
The two videos
Synthesia produced two cuts from the same brief. First the short vertical explainer, with optional subtitles:
Then the full landscape version: opening, problem framing, product explanation, titles, transitions and a synthetic presenter.
Embedding, courses and interactivity
Videos can be published as shareable pages or embedded into a site, so they can live inside an article, product page or internal document instead of existing as a disconnected YouTube link.
On Enterprise, SCORM connects them to an LMS.
The strongest feature is interactivity: CTAs, quizzes and branching. The viewer answers a question; a correct answer continues the flow, while a wrong one jumps to a correction scene.
That makes the experience measurable. It is no longer just a clip with an avatar. It becomes a training interface.
What still needs a human
Synthesia speeds up production, but it does not remove review.
The main risk was not video quality. It was semantic compression: a dense brief simplified too aggressively can read clearly for executives while becoming vague or misleading for specialists. That matters in biotech, healthcare, finance, legal and other precision-heavy domains.
The workflow should be:
Documentation -> script adaptation -> technical review -> video generation -> final review -> publish
Takeaway
HeyGen is stronger for personal avatars, creator video and digital twin experimentation.
Synthesia is stronger for corporate communication: structured explainers, multilingual production, embedding, SCORM and interactive learning.
It does not need to be a deepfake tool. Its value is practical: it turns reviewed company knowledge into repeatable, multilingual video.
The avatar is one component. The real system is the workflow around it.
Synthesia is not replacing technical review. It is replacing the friction of turning reviewed knowledge into repeatable corporate video.