Synthesia

Where Synthesia shines

Synthesia is an AI video platform for making presenter-style videos without cameras, microphones, or studios. You write a script, pick an on-screen avatar and voice, choose a layout, and the platform renders a video where the avatar delivers your message. It’s widely used for training, onboarding, support explainers, product walkthroughs, and localized versions of the same content. Non-experts can produce consistent videos quickly, and teams can update scripts later without re-shooting.

Synthesia remains a leader in avatar based video creation, and its 2025 platform adds several upgrades that push realism and automation further. The new AI Video Assistant can generate or update entire videos from documents, making it easier for teams to maintain training or support libraries. Avatars have become more expressive thanks to improved motion modeling and a licensing partnership with Shutterstock that supplies realistic gesture and body data. These improvements reduce the stiffness common in early synthetic presenters and make communication feel smoother and more believable.

Synthesia continues to focus on scalability. Companies use it to generate dozens or hundreds of consistent videos without cameras or voice actors. It streamlines localization by translating scripts automatically and synchronizing mouth movements in over 130 languages. That makes it one of the most efficient tools for global training and marketing operations.

The platform fits naturally into documentation and content systems. Users can write scripts in their learning management or knowledge base tools, export to Synthesia, and render videos without external editors. Scene templates keep layouts on brand, while brand kits ensure consistent fonts and color palettes. Collaboration tools allow teams to review and approve scripts before rendering, which shortens production cycles dramatically. These workflow links explain why Synthesia has become standard for internal communication, onboarding, and product explainers.

The addition of the AI Video Assistant automates script adaptation. It detects outdated lines in existing videos and proposes rewrites that match current messaging. Combined with the improved avatar realism, it positions Synthesia closer to a fully managed video communication system rather than just a generator.

As synthetic video becomes mainstream, Synthesia continues to emphasize disclosure and data ethics. Its enterprise guidance urges organizations to mark AI generated videos and maintain consent logs for any custom avatars or voices. Users are reminded not to include sensitive data in scripts, and administrators can enforce privacy settings through single sign on and audit trails. These governance features are increasingly relevant as regulators scrutinize synthetic media.

Realism has advanced, but it remains important to set expectations. Avatars still deliver information best in formal or instructional tones rather than dramatic storytelling. For education, support, and product communication, the tradeoff is worthwhile: consistent tone, low cost, and multilingual coverage at industrial scale.

We like Synthesia because it turns video production into a repeatable document like workflow where a small team can publish an entire training library in many languages without studio logistics. We do not like the limits on expressive nuance that matter for storytelling or high emotion brand films. It could be better with richer gesture control and tighter lip sync on difficult phonemes across languages. We found the multilingual reach interesting because it lets a company ship the same message to every region in a day while keeping brand uniformity. Security wise the platform offers private projects and enterprise controls on higher tiers, yet teams should still apply least privilege access, enable single sign on, and document consent for any custom avatars. This tool is for learning leaders, support teams, and product marketers who value speed, consistency, and localization. The strength is reliable scale and brand control for informative videos, the weakness is limited performance range for narrative work.

At a glance

Coverage & data

Plans & limits

Prompts

Each block is a copy-ready prompt.

                                            
                                        Turn this text script into a professional training video with a realistic avatar and voiceover.

Generate a short explainer video about this product feature using a friendly avatar.

Create a localized version of this onboarding script with a Spanish speaking avatar.

Produce a marketing update video with clear narration and a formal avatar style.

Convert this company announcement into a 90 second video that feels engaging and polished.

                                            
                                        Create multiple versions of this script with different avatar styles and tones.

                                            
                                        Generate a product demo video using a custom branded avatar.

                                            
                                        Render a short social media video from this script in vertical format.

Community signal

Compared to similar tools

Synthesia is the fastest path to consistent presenter videos. Runway is better for generative/edited footage and VFX-style fixes; traditional editors still win for cinematic storytelling and fine control.

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