Synthesia Review
An AI video platform that turns a script into a presenter-led video using lifelike digital avatars — no camera, studio or actor required. Built for corporate training, product explainers and internal comms, it supports 140+ languages and lets teams update a video by editing text. Synthesia is a London-headquartered company, which gives it an unusually strong UK/EU compliance story.
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- Best for
- L&D, HR and comms teams producing training, onboarding and explainer videos at scale
- Pricing
- Free / ~£23/mo Starter / ~£70/mo Creator / Enterprise custom Approx. GBP excl. VAT. Billed in USD ($29 Starter, $89 Creator) — annual billing is cheaper (~£17/~£53). Verify exact GBP price at checkout.
- Data residency
- EU (data stored in Ireland; UK-based company)
- UK English
- Yes
Our in-depth review
Type a script, get a presenter on screen
Synthesia is the category leader for one specific job: turning a written script into a polished, presenter-led video without a camera, a studio or an actor. You write the words, pick from 140-plus AI avatars (or train a custom one of yourself), and the platform generates a person delivering your script to camera with synced lip movement and a natural voice. For UK L&D, HR and internal-comms teams, it collapses what used to be a multi-day production into an afternoon — and crucially, when the content changes you edit the script rather than booking a re-shoot.
Strengths
Nothing else does talking-head corporate video as cleanly. The 140+ language support makes localising training and onboarding genuinely practical, the SCORM export and interactive-video features fit straight into an LMS, and brand kits keep output on-template. The standout for our readers, though, is the compliance posture: Synthesia is a London-headquartered firm that stores customer data in the EU, which is a rarer and stronger UK/EU story than almost any US-based rival can offer.
Limitations
Synthesia is a specialist, and its limits are the edges of that specialism. The avatars are excellent but still read as 'professional presenter' rather than cinematic performance, so it is the wrong tool for creative film, generative b-roll or emotive storytelling. The monthly video-minute allowances are easy to exhaust on a busy training calendar, and the features teams most want — custom avatars, more minutes, SSO — sit on the Creator and Enterprise tiers. Budget for the plan that matches your real output, not the entry price.
UK data and GDPR
This is where Synthesia pulls ahead for UK buyers. It is a UK-based company, customer data is stored within the EU (Ireland, with backups in Ireland and AWS Frankfurt), and it runs under GDPR and the UK Data Protection Act 2018 with a published DPA, standard contractual clauses for onward transfers and documented Transfer Impact Assessments. It also holds ISO 42001 for AI management and SOC 2. For training content featuring real staff or any personal data, that EU-residency-plus-UK-company combination is about as reassuring as the AI video market currently gets — but still check the live DPA and Trust Center for your specific use.
Key features
- 140+ AI avatars plus custom personal avatars
- Text-to-video — type a script, get a presenter-led video
- Voiceovers and captions in 140+ languages
- Edit the video by editing the script
- Templates, screen recording and brand kits
- SCORM export and interactive video for LMS use
Pros & cons
What we like
- Best-in-class for avatar-led training and explainer video
- London-based company with data stored in the EU — a rare UK/EU compliance story
- ISO 42001 (AI management), SOC 2 and GDPR aligned
- Update a video by editing text — no re-shoot, no re-record
- Strong multilingual support for localising internal comms
What to watch
- Monthly video-minute caps fill up faster than you expect
- Avatar delivery still reads as 'corporate presenter', not cinematic
- Custom avatars and higher minute allowances need the pricier tiers
- Not built for generative b-roll or creative film — it is a talking-head tool
GDPR & data residency
Where your data is processed: EU (data stored in Ireland; UK-based company)
Synthesia is unusually well-positioned for UK buyers: it is a UK-headquartered company, customer data is stored within the EU (data centres in Ireland, with backups in Ireland and AWS Frankfurt), and it operates under GDPR / the UK Data Protection Act 2018 with a published DPA, SCCs for any onward transfers and Transfer Impact Assessments. It also holds ISO 42001 (AI management) and SOC 2. Verify the current DPA and Trust Center documentation for your use case before processing personal data.
Our verdict
We rate Synthesia 4.5 out of 5. It's best suited to l&d, hr and comms teams producing training, onboarding and explainer videos at scale.
Visit Synthesia →Frequently asked questions
What is Synthesia best for?
Avatar-led corporate video — training, onboarding, explainers and internal comms. You write a script and Synthesia generates a digital presenter delivering it, with voiceovers and captions in 140+ languages. It is not built for cinematic or generative video; it is a talking-head specialist.
Is Synthesia GDPR compliant for UK companies?
It has one of the strongest stories in the category. Synthesia is a London-based company that stores customer data in the EU (Ireland), operates under GDPR and the UK Data Protection Act 2018 with a published DPA, and holds ISO 42001 and SOC 2. Always confirm the current DPA covers your use case before processing personal data.
Does Synthesia have a free plan?
Yes — a free tier lets you create short, watermarked videos to trial the platform. Paid plans start around £23/month (Starter) for logo-free downloads, with Creator (~£70/month) adding custom avatars, more minutes and API access. Annual billing is meaningfully cheaper.