Synthesia turns a script into studio-style video narrated by AI avatars in 160+ languages, aimed at corporate training, onboarding and internal communication. Every video passes content moderation, and building an avatar of yourself requires a recorded consent video verified against your footage.
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Synthesia is an AI video platform built around a simple substitution: instead of a camera, a studio and a presenter, you write a script and a synthetic presenter delivers it. The company positions itself squarely at business use rather than entertainment or social content, and the pitch is stated in terms of production economics — studio-quality video with AI avatars and voiceovers in more than 160 languages, with claims of saving up to ninety percent of the time and cost of conventional video production.
What that means in practice is that this AI video generator runs entirely as a browser-based workflow. You choose an avatar from a stock library of more than 240, type or paste your script, pick a voice from over a thousand, and the platform renders a presenter-led video. Around that core sit the pieces a company actually needs to use such video at scale: screen recording, motion graphics, dubbing and translation, a multilingual player, captions, brand kits, live collaboration, version control, analytics, single sign-on and shareable video pages. Newer additions extend into interactivity, including Roleplay Sessions for practising conversations against an AI avatar and Interactive Avatars in beta.
The reason this particular product deserves a careful read is not the video generation, which is now a crowded category. It is that the questions people rightly ask about synthetic presenters — whose face is that, who consented, what can it be made to say — have unusually concrete answers here. Those answers are documented rather than implied, and they are also, as the review evidence shows, the source of the product's most common complaint. Both sides of that are covered below.
The text to video path begins with picking a presenter: the stock library exceeds 240 avatars, each based on a real actor. Beyond that, two kinds of custom avatar exist. A Personal Avatar is recorded on a laptop or smartphone; you can stand, sit or even walk, the original background is retained, and your voice is automatically cloned. A Studio Avatar requires either a visit to a partner recording studio or your own green-screen footage, with synthesis taking up to a few days. The distinction matters for more than quality, because the moderation policy treats custom avatars differently from stock ones.
Creating a Personal Avatar is a three-step flow, and the third step is recording a consent video. Studio Avatars follow the same logic: footage and consent must both be ready before upload. This is not a checkbox buried in terms of service. The privacy policy explains what happens to that recording — facial geometry and voiceprint are treated as biometric data under GDPR's special category rules and the Illinois Biometric Privacy Act, and the platform compares biometric data extracted from your consent recording against biometric data extracted from your sample footage in order to verify they are the same person. The stated legitimate interest is safeguarding individuals from having their likeness misused. The practical effect is that uploading someone else's footage and claiming permission is designed to fail a technical check, not merely to breach a contract.
Dubbing, a video translator and a multilingual player address the case that drives much enterprise adoption: one script, many markets. Enterprise plans advertise one-click translation into more than eighty languages, while the platform overall claims support for more than 160.
Brand kits, live collaboration, version control, analytics, SAML single sign-on, SCORM export for learning management systems, and public or gated video pages. SCORM export in particular signals the intended buyer: corporate learning and development teams whose output has to land inside an existing LMS.
The company publishes a Responsible AI framework it calls the 3Rs — Review for risk-tiered assessment before launch, Report for traceability linking content to an identity and authorization context, and React for audits and incident response. It holds SOC 2 Type II, GDPR and ISO 42001 compliance, and claims to have been the first generative AI company certified to ISO 42001, alongside ISO 27001 and ISO 27701. An external AI Futures Council includes deepfake researcher Henry Ajder and Northern Ireland Assembly member Cara Hunter, who has campaigned against non-consensual deepfakes. A Talent Experience Program brings the actors behind popular stock avatars into product decisions.
Compliance and technical training. The anchor case for any corporate training video. Policy changes, safety procedures and system walkthroughs need frequent updating, and re-recording a human presenter for every revision is what makes traditional video expensive.
Onboarding and employee development. Consistent delivery across cohorts, with SCORM export putting the result inside the existing learning system.
Multi-market rollout of one message. A single script localised into many languages, which is where the dubbing and translation tooling earns its place.
Sales enablement. Product updates and pitch training distributed to a distributed team, refreshed as messaging changes.
Internal communications and change management. Leadership messages that need to reach everyone in the same form, in every region.
Standard operating procedures. Screen recording combined with avatar narration suits process documentation that would otherwise be a wall of text.
Conversation practice. Roleplay Sessions let staff rehearse difficult conversations against an interactive avatar with scored feedback, which is a genuinely different use from broadcast video.
1. Start on the free plan and test your actual content. Basic costs nothing, needs no credit card, and gives 1,200 credits per month, usable for up to ten minutes of video. Ten minutes is enough to learn whether the output quality clears your bar.
2. Test your terminology early. If your field has specialist vocabulary, product names or acronyms, script them in during the trial and listen carefully. Mispronunciation of industry terms is a documented complaint, and it is far cheaper to discover before purchase.
3. Read the moderation policy before you plan a content programme. Some topics are prohibited outright; others are restricted to custom avatars. If your subject matter falls into the restricted band, your plan must include building a custom avatar, which changes both cost and timeline.
4. Decide whether you need a custom avatar at all. Stock avatars are faster and cheaper. A custom avatar is worth it when the presenter's identity matters to the audience or when your topic is restricted.
5. Record the consent video properly. It is a required step for a custom avatar and it is checked biometrically against your footage. Follow the footage requirements carefully; Studio avatars in particular have detailed specifications.
6. Budget by minutes, not by videos. Paid plans are metered in credits that map to video minutes per year. Estimate your annual minutes before choosing between Starter and Creator, because the gap between 120 and 360 minutes is the real decision.
7. Build translation into the script. Text written for easy localisation translates better than idiom-heavy copy. This matters more than it sounds when one script becomes twenty language versions.
8. Allow time for moderation on sensitive topics. Automated moderation is instant, but flagged content goes to human review. If your content touches medical, legal or safety subjects, do not schedule a same-hour publish.
Treat moderation as a design constraint, not an obstacle. The most common serious complaint about this platform is that legitimate content gets rejected. Knowing in advance which topics are restricted, and pairing those with a custom avatar of your own likeness, avoids most of that friction.
Keep a human review step for factual content. Automated moderation has been reported to reject content that subject-matter experts had already approved. Whatever the platform does, your own sign-off process should not be replaced by it.
Test the voice before committing to an avatar. Voice cloning quality varies with source material and vocabulary. A Personal Avatar clones your voice automatically, which is convenient but means voice quality is decided at recording time.
Use annual billing only once your volume is known. Annual pricing is substantially cheaper, but credits are allocated yearly on paid plans, so under-using them is a real way to overpay.
Check whether you need enterprise before assuming you do. Unlimited minutes, SSO, SCORM export and unlimited personal avatars sit only at the enterprise tier. If none of those apply, Creator may be sufficient at a fraction of the commitment.
Document who authorised each custom avatar. The platform verifies identity at creation, but your own records of who approved what, and for how long, are your responsibility. This matters when an employee whose avatar exists in your library leaves the company.
Read the third-party model disclosure. The company states it now uses third-party models and commits to telling customers which services power which features. If your procurement process cares about subprocessors, ask for that mapping specifically.
The clearest fit is a corporate learning and development team producing training video at volume, in multiple languages, with a need for output that drops into an existing LMS. Every design decision in the product points at this buyer.
It suits organisations for which governance evidence is a purchase requirement. SOC 2 Type II, ISO 42001, documented moderation policy and biometric consent verification are the kind of artefacts a procurement review asks for and rarely receives in this category.
It suits companies localising one message across many markets, where the cost of re-recording human presenters per language is the actual problem being solved.
It is a poor fit for creative or entertainment video. Avatars deliver scripts to camera; this is not a storytelling tool.
It is a poor fit for anyone whose content sits near the restricted or prohibited boundaries and who cannot accommodate a review step. The moderation is thorough by design and applies to everything.
And for individuals wanting occasional short videos, the free tier is genuinely usable, but the paid tiers are priced for organisations rather than hobbyists.
Synthesia is a browser-based platform. There is no official desktop or mobile application; creation, editing, collaboration and publishing all happen in the web app. Custom avatar recording uses whatever camera you already have — a laptop or smartphone for Personal Avatars, or a partner studio for Studio Avatars.
Output travels through standard channels: downloadable video files on paid plans, SCORM export for learning systems at the enterprise tier, shareable public or gated video pages, and API access from the Creator plan upward for teams generating video programmatically.
A note on identification: an unrelated mobile application called "Synthesia AI: Photo to Video" exists on the app store, published by an individual developer and carrying a single rating. It is not connected to this platform. The product described on this page is the web platform at synthesia.io only.
Basic is free, requires no credit card, and includes 1,200 credits per month, usable for up to ten minutes of video and 25 AI-generated video assets per month.
Starter lists at $19 per month, or $14 per month billed yearly. It adds video downloads, an AI video assistant, AI dubbing, removal of the Synthesia logo, one editor plus three guests, and 125+ stock avatars, with 14,500 credits per year covering roughly 120 minutes of video or dubbing and 300 video assets.
Creator lists at $89 per month, or $59 per month billed yearly. It adds five Personal Avatars, branded video pages, API access, multiple avatars per scene, interactive videos, one editor plus five guests, 180+ stock avatars and priority support, with 44,000 credits per year covering roughly 360 minutes and 900 assets.
Enterprise is custom-priced and is where the organisational capabilities live: unlimited video minutes, one-click translation into 80+ languages, 240+ stock avatars, unlimited Personal Avatars, SAML single sign-on, live team collaboration, brand kits, SCORM export, tailored onboarding, implementation services, a dedicated customer success manager, and access to the academy and certifications.
The practical reading of this ladder is that the individual tiers meter output while the enterprise tier removes the meter and adds the governance and integration layer. If you need SSO or SCORM, no amount of paying for Creator will get you there.
Prices reflect the pricing page as accessed in late August 2026, quoted in US dollars, and the page carried a promotional banner at the time. Check current pages before budgeting.
The direct comparison set is HeyGen, D-ID, Colossyan and Elai, with VEED, Pictory and invideo occupying adjacent ground in AI-assisted video editing more broadly. HeyGen is the closest competitor by positioning and, per third-party reporting, reached a comparable annualised revenue milestone.
Third-party review scores on one platform, measured at the same time, put Synthesia at 3.9, HeyGen at 3.6, VEED at 4.2, Pictory at 4.2 and invideo at 3.1 — useful mainly to show that the whole category clusters in a similar band rather than to rank them.
The meaningful differentiator is not avatar realism, which competitors match. It is the governance layer: documented moderation policy, biometric consent verification, ISO 42001 certification and an actor programme. For an enterprise buyer that is often the deciding factor. For a user who simply wants a video made without a review step, it is precisely the reason to look elsewhere — and at least one reviewer publicly recommended a competitor for exactly that reason.
Content moderation applies to everything and is the top user complaint. The company moderates 100% of content, and the two-tier prohibited-and-restricted structure is thoroughly documented. That is a genuine governance strength. It is also, by a clear margin, what negative reviewers object to. One reviewer characterised the platform as controlling what you can create and blocking you. Another, producing content for a national health service, reported that material already approved by clinical experts was rejected as inaccurate, and publicly recommended a competitor instead. Anyone whose subject matter is medical, legal, safety-related or political should treat moderation friction as a foreseeable cost.
Review scores diverge substantially between platforms. The company advertises a 4.7 out of 5 rating from more than 2,000 five-star reviews on one review platform. On another, the score is 3.9 from 1,820 reviews. Both figures are reported here rather than reconciled. The 4.7 figure could not be independently verified because that platform blocked access; the 3.9 figure was verified first-hand.
The rating distribution is polarised. Of those 1,820 reviews, 72% are five-star and 13% are one-star, with only 4% combined at two and three stars. A product that people either love or reject outright is a different proposition from one that is uniformly adequate, and the average obscures that.
The review profile carries selection-bias flags. It is company-claimed since October 2021 and marked as a paid subscription profile. The platform also notes the company has not recently invited reviews and has not replied to negative reviews. These do not invalidate the score but they belong alongside it.
Voice quality on custom avatars has documented failure modes. One enterprise customer described roughly eleven thousand dollars of spend substantially wasted, citing mispronunciation of industry-specific terminology in their own avatar that support could not resolve. Test your vocabulary before committing.
Vendor metrics are self-reported. Claims of use by over 90% of Fortune 100 companies, more than 50,000 companies and over one million users come from the company and have not been independently audited.
In-site listing data was out of date. The directory description accompanying this tool stated support for 140+ languages; the official site now states 160+. Where they differ, this page follows the official site.
Enterprise features are genuinely gated. SSO, SCORM export, unlimited minutes and unlimited personal avatars require a sales conversation. Teams that need these should plan procurement time rather than expecting self-serve.
Third-party models are now in the stack. The company discloses that it uses third-party models, states it remains accountable for enterprise outcomes, and acknowledges some safety properties originate upstream. Buyers with subprocessor requirements should request the specific mapping.
The company is well capitalised, which matters for platform longevity. In October 2025 Synthesia closed a funding round that nearly doubles its valuation to $4 billion, with GV, the venture firm backed by Alphabet, leading the $200 million round. The previous round had raised $180 million at $2.1 billion valuation. For buyers evaluating a platform they intend to build training libraries on, the funding trajectory is a relevant signal about whether the vendor will still exist in three years, though it says nothing about product quality.
Generated output is labelled under the EU AI Act. The company states that content was generated using artificial intelligence and is labeled in accordance with EU AI Act Article requirements. Organisations distributing synthetic video inside the EU inherit disclosure obligations of their own, so confirm how the labelling appears on exported files rather than assuming the platform discharges your obligation for you.
Governance changes are framed as additive rather than substitutive. On the responsible AI page the company tells existing buyers that your contractual commitments, security posture, and moderation guarantees are unchanged, and that what you'll see over time is more structured evidence: audit artifacts, provenance signals, and clearer documentation of how third-party capabilities are governed on our platform. Read that as a commitment to disclosure improving, not to terms changing.
Data retention follows customer instruction rather than a fixed schedule. The privacy policy, effective January 30, 2025, states the company will retain Customer Data in accordance with Customer's instructions and as required by applicable law, and that the deletion of Customer Data and other use of the Services by the Customer may result in the deletion and/or de-identification of certain associated data. There is no published fixed retention window, so the deletion timetable is something to negotiate into your contract rather than something to read off the policy.
Actor compensation terms are not published. The Talent Experience Program is documented as existing and involving actors in decisions, but the site does not publish what actors are paid, how long licences run, or whether consent can be withdrawn. On this specific point the official material makes no statement.
Not through the documented flow. Creating a custom avatar requires recording a consent video, and the privacy policy states the platform compares biometric data from that consent recording against the sample footage to verify they are the same person. The purpose is described as safeguarding individuals from having their likeness misused.
Two tiers apply. Prohibited content is banned outright across four published policies covering harmful behaviour, disagreeable content, safety of individuals and communities, and platform integrity. Restricted content is permitted only with a custom avatar of your own likeness, on the stated basis that stock avatar actors may disagree with the views being expressed.
Yes. The company moderates 100% of content. Automated moderation is instant; flagged material goes to human review. Rejections come with an in-app notification and an email explaining the reason and any remedy. Repeatedly resubmitting rejected content may lead to account suspension.
There is a genuinely free tier. Basic requires no credit card and provides 1,200 credits monthly, good for up to ten minutes of video and 25 assets. Downloads and logo removal begin at the paid tiers.
Starter is $19 monthly or $14 per month billed yearly, with roughly 120 minutes of video per year. Creator is $89 monthly or $59 per month billed yearly, with roughly 360 minutes and five Personal Avatars. Enterprise is custom-priced with unlimited minutes.
Unlimited video minutes, one-click translation into 80+ languages, the full 240+ avatar library, unlimited Personal Avatars, SAML single sign-on, SCORM export, brand kits, live team collaboration, dedicated onboarding and a dedicated customer success manager. Single sign-on and SCORM in particular are not purchasable at lower tiers.
The official site currently states more than 160 languages for the platform overall, with one-click translation into more than 80 languages at the enterprise tier. Note that some directory listings still quote an older figure of 140+.
The compliance artefacts are real: SOC 2 Type II, GDPR, ISO 42001 alongside ISO 27001 and ISO 27701, with the company claiming to be the first generative AI company certified to ISO 42001. Biometric data handling is documented against GDPR special category rules and the Illinois Biometric Privacy Act. Whether that satisfies your regulator is your assessment to make, but the documentation exists to assess.
Moderation strictness, by a clear margin. Reviewers report legitimate content being blocked, including material approved by outside experts. Secondary complaints involve voice quality on custom avatars, particularly mispronunciation of specialist terminology. Praise concentrates on ease of use and speed of producing training video without technical skills.
No official one. Synthesia is a browser-based platform, and custom avatar recording uses your existing phone or laptop camera rather than a dedicated app. A similarly named app by an unrelated individual developer exists on the app store and is a different product entirely.
