Synthesia

What it does

Synthesia is an AI video platform that converts text scripts into videos presented by AI avatars. You type or paste a script, choose an avatar and voice, and the platform renders a video of the avatar speaking your words. It supports many languages and is widely used for training videos, explainers, and corporate communications.

Best use cases

• Training and onboarding videos without filming or hiring actors
• Product explainers and how-to videos
• Multi-language versions of the same video from one script
• Internal company updates and announcements

Who should use it

Training teams, HR departments, course creators, and businesses that need regular presenter-style videos without a filming setup. Best for informational content rather than entertainment.

Strengths

• Produces presentable videos without cameras, microphones, or actors
• Updating a video is as easy as editing the script text
• Strong multi-language support from a single script
• Consistent output — no scheduling, filming, or retakes

Limitations

• AI avatars can feel flat for storytelling, humor, or emotional content
• Paid tiers — check the official site for current plans; video minutes are limited per plan
• Customization is limited compared to filmed or traditionally edited video
• Viewers increasingly recognize AI presenters, which can reduce trust for some audiences

Privacy considerations

Don't upload confidential company material or personal data into scripts without checking how the platform stores and processes it. Review Synthesia's privacy and data policies before business use.

Commercial-use considerations

Synthesia videos are made for commercial distribution — training, explainers, marketing — and plans are priced around that. Two boundaries matter. First, avatars: stock avatars are licensed for use, but a personal avatar requires your recorded consent, and you may never create an avatar of someone else without their permission. Second, content: the terms prohibit deceptive or harmful uses, including misleading news or political content. Distribution rights, video minutes, and commercial licensing vary by plan. We have not reviewed your specific agreement — check Synthesia's current terms of service before publishing avatar videos commercially.

Learning curve

Learning curve: an hour or two — pick an avatar, paste a script, and render your first video.

Alternatives

Pictory — if you prefer short videos built from stock footage rather than AI presenters.

Descript — if you want to record and edit real footage with text-based editing.

Official website

synthesia.io — Check the official site for current plans and pricing.

Who should skip Synthesia

• Storytellers, entertainers, and anyone making content that needs humor, emotion, or personality — AI avatars come across flat here.
• Creators building a personal brand — viewers increasingly recognize AI presenters, and that can cost trust with some audiences.
• Perfectionists who want full visual control — customization is limited compared to filmed video.

Example workflow with Synthesia

1. Write the script the way someone would actually say it — short sentences, conversational tone — since the avatar will read it aloud.
2. Pick an avatar and voice, paste the script in section by section, and preview each part for awkward pronunciations or odd pacing.
3. Add simple slides or screen recordings alongside the presenter to carry the details the voice can't show.
4. Render the final video, share it with your team, and when the process changes, just edit the text and re-render — no refilming.

See the full step-by-step AI video workflow for a repeatable process around avatar explainers.