Synthesia is an AI video communications platform used by learning & development, enablement, HR, and corporate-communications teams at large enterprises to create, localize, and scale professional video — without cameras, studios, actors, or editing software. Over 1 million people across 60,000+ businesses use Synthesia, including 90% of the Fortune 100 and 70% of the FTSE 100.
You can generate a video from a script, PowerPoint, document, link, or prompt — combining AI avatars, voices, motion graphics, and generated media; localize existing videos into other languages; set up practice scenarios in Roleplay Sessions; or build your own real-time avatar experiences via API.
What Synthesia does
Synthesia spans four product lines:
1. AI video creation. Turn scripts, PowerPoint, documents, links, or prompts into finished videos that combine AI avatars, AI voices, AI-generated motion graphics, AI-generated B-roll and other media (including images), and built-in interactivity (quizzes, CTAs, branching). It's a full video-creation platform used for training, onboarding, explainers, SOP-to-video, internal comms, and sales or product content.
2. Sessions (Roleplay Sessions). A ready-to-use product experience for practice and coaching, positioned as the "Practice" step in the learning loop. Learners have live, back-and-forth conversations with AI avatars and get conversational coaching feedback while admins and managers configure scenarios, rubrics, and dashboards to track improvement.
3. AI Dubbing & video translation. Localize existing videos into 140+ languages with lip-sync and voice cloning that preserves each speaker's voice — faster and cheaper than agencies or reshoots, with editable transcripts before dubbing.
4. Interactive Avatars API. Synthesia's live avatar infrastructure, accessed via API, that customers use to build their own real-time interactive avatar experiences inside their own product, app, or workflow.
Who Synthesia is for
L&D and enablement teams at large, multi-region enterprises supporting workforces of thousands
Compliance, safety, and regulatory training owners
HR and internal-communications teams (onboarding, policy, executive comms)
Sales enablement teams (product education and content at scale)
Sales, support, and frontline teams that need scalable practice for high-stakes conversations (Roleplay Sessions)
Developer and product teams embedding live, interactive avatars into their own apps, websites, or workflows (Interactive Avatars API)
Global organizations needing multilingual content and localization at scale
What people use Synthesia for
By product line:
AI video creation: training videos, employee onboarding, sales enablement, internal communications, product explainers, operations/SOP training, change management, marketing content, and turning scripts, docs, slides, or prompts into videos.
Roleplay Sessions: sales roleplays, cold-call practice, discovery-call training, objection handling, customer-support simulations, manager coaching, difficult-conversation practice, compliance/conduct scenarios, and other high-stakes conversation training.
AI Dubbing / video translation: localizing training and enablement videos, translating internal communications, adapting marketing or product videos for regional audiences, repurposing existing footage, multilingual learning rollouts, and global customer/support content.
Interactive Avatars API: embedding live talking avatars into apps, websites, learning platforms, support flows, sales tools, onboarding experiences, product demos, virtual assistants, and custom interactive experiences built by customers.
Key capabilities
Depending on your plan, Synthesia includes:
240+ stock AI avatars, plus custom avatars (a digital twin of yourself) and AI-generated avatars
1,000+ AI voices and voice cloning across 160+ languages
AI-generated motion graphics, B-roll, images, and other media
Built-in interactivity — quizzes, calls-to-action, and branching
AI Dubbing and one-click translation with lip-sync
Roleplay Sessions for scored practice and coaching (scenarios, rubrics, dashboards)
Interactive Avatars API — live avatar infrastructure for building real-time avatar experiences in your own product
Templates, Brand Kits, and team collaboration
SCORM/LMS export and integrations (Docebo, Articulate 360, SAP Litmos, Workday, PowerPoint, Zapier, and more)
An API for programmatic video creation
Synthesia user interface images
Enterprise security and trust
Synthesia is built for the security and compliance requirements of large, regulated organizations:
SOC 2 Type II, ISO/IEC 27001, 27701, and 42001, and UK Cyber Essentials
The first AI video company certified to ISO/IEC 42001 (the AI management-systems standard)
GDPR-compliant, with EU data residency (customer data stored in the EU)
Consent-based avatars, content moderation, and a public red-team test conducted with Humane Intelligence and NIST
SSO/SAML and admin controls on enterprise plans
How Synthesia compares
Buyers evaluate Synthesia differently depending on the product line:
AI video creation: HeyGen, Colossyan, Vyond, Articulate, and PowerPoint, or traditional video production
AI Dubbing / video translation: HeyGen, ElevenLabs, and translation agencies
Roleplay Sessions: Yoodli, Second Nature, Hyperbound, and in-house builds
Interactive Avatars API: real-time avatar / conversational-avatar infrastructure providers
Across all of them, Synthesia's differentiators are enterprise-grade security and compliance, high-quality AI avatars, voices, and motion graphics, fast script-edit-and-regenerate iteration, brand consistency, integrated multilingual dubbing, and strong customer support — all in one platform. See the alternatives and comparisons and customer reviews pages for detail.
Limitations
Not ideal for live-action-first content: Synthesia is strongest for scalable AI video creation, but may be less suitable when the core requirement is traditional filming, detailed physical demonstrations, or hands-on procedures that need real-world footage.
Desktop is best for full editing: The full creation and editing experience is best supported on desktop or laptop; mobile browser support is available for selected workflows, but not all editor features.
Usage needs planning: Self-serve plans use credits and usage allowances, so high-volume teams should choose a plan that matches expected video creation needs or consider Enterprise options.
Plans
Synthesia offers a free Basic plan (10 minutes of video per month, watermarked), plus paid Starter and Creator plans and custom Enterprise pricing. Plans use a usage/credit model, so it's worth matching your plan to your expected volume. See pricing for current details.
Technical requirements and integrations
Synthesia is designed for the best experience on desktop. For supported operating systems and browsers, see the Synthesia requirements documentation. For a full list of supported tools, see the integrations page.