Synthesia AI

Synthesia is an AI video creation platform designed mainly for businesses, teams, educators, and professional content creators. It lets users turn scripts, documents, presentations, websites, or prompts into professional videos using AI avatars, voices, generated visuals, and interactive elements. Users can create videos without cameras, actors, microphones, or traditional video production equipment.

Uses of Synthesia AI

Synthesia can create training videos, employee onboarding content, product demonstrations, marketing videos, sales presentations, internal communications, tutorials, and educational content. Users can start with a written script, PowerPoint presentation, document, website, or simple prompt and turn it into a structured video with an AI presenter.

The platform is also useful for global content production. Synthesia supports AI dubbing and translation across 160+ languages, allowing businesses to create localized versions of their videos. Teams can also create interactive videos with quizzes, calls-to-action, branching scenarios, and Roleplay Sessions for training and practice.

Synthesia AI Models & Sub-Models

Synthesia AI Avatars are digital presenters that can speak and move naturally based on a user's script. Synthesia currently offers more than 240 stock AI avatars on its highest plan, with different avatar types designed for training, business communication, marketing, and other professional content.

Express-3 Avatars use Synthesia's newer generative avatar technology to provide sharper visuals, improved lip-sync, and more natural body movement. Their gestures and movements respond more closely to the script, making them useful for conversational and presentation-style videos.

Personal Avatars allow users to create a digital version of themselves. A personal avatar can be created from a photo or video, and users can combine it with their own cloned voice to create videos without recording themselves every time.

Avatar Builder allows users to create new realistic or stylized AI characters from prompts or preset controls. This is useful when a project needs a custom presenter, mascot, fictional character, or branded visual identity rather than a standard stock avatar.

AI Voices provide natural-sounding voiceovers for videos. Synthesia offers more than 1,000 AI voices and supports voices across 160+ languages, allowing businesses to create multilingual video content without hiring separate voice actors for every language.

AI Dubbing & Translation can translate existing Synthesia videos into other languages while preserving the speaker's voice style and synchronizing the translated speech with the avatar's mouth movements. This is particularly useful for global training, marketing, support, and communication.

AI Video Assistant helps users turn prompts, documents, presentations, and other source material into structured videos. It can help create scripts, scenes, layouts, and other parts of the video production process, reducing the amount of manual editing required.

AI Playground provides access to generative image and video capabilities, including models such as Veo 3.1, FLUX.2, and Nano Banana Pro. These tools can be used to create B-roll, images, and additional visual content for AI videos.

Interactive Avatars allow AI presenters to listen and respond in real time. Developers can connect their own LLM or AI agent while Synthesia provides the avatar layer, making the technology useful for customer support, sales, onboarding, training, and interactive applications.

Pricing

Synthesia currently offers a free Basic plan with 1,200 credits per month, usable for up to 10 minutes of video or 25 AI-generated video assets. The Starter plan is $29/month, while the Creator plan is $89/month when billed monthly. Enterprise pricing is custom. Annual billing provides lower effective monthly prices.

Free: Yes, Basic plan

Paid: Yes — Starter, Creator, and Enterprise

Free Trial: Yes, through the free Basic plan; no credit card is required to start.

Best Use Cases

Synthesia is best suited for businesses, HR teams, learning and development departments, educators, marketers, sales teams, customer-support teams, and content creators who need to produce professional videos at scale. It can be used for employee training, onboarding, product tutorials, corporate communication, sales enablement, marketing content, multilingual videos, software demonstrations, customer education, and interactive learning. Its combination of AI avatars, voice generation, translation, dubbing, generated visuals, and interactive video features makes it especially useful for organizations that need to create and localize large amounts of professional video content without traditional production costs.