Synthesys

Key facts: Synthesys is an AI studio for voices and video avatars. Type a script and it generates a voiceover — or a presenter video with an AI avatar speaking it — for training, advertising and explainer content, with no camera, studio or filming required.

The library covers 400+ voices in 140+ languages and 1,000+ avatars, plus voice cloning for consistent branding, dubbing, face swap and text-to-video generation. Everything runs on one monthly credit allowance, and every paid plan includes full commercial rights.

Plans: Synthesys is a paid product with no permanent free plan. Paid plans start at $29 a month ($20 a month on annual billing), rising through $59 a month ($41 annual) and $119 a month ($83 annual) tiers that add more credits, faster processing and 4K export. Confirm current prices on the official pricing page.

Pros

• Voices and avatar videos from one script in a single studio
• A large library of voices and avatars, plus voice cloning for consistent branding
• No filming or studio booking needed — presenter videos without a camera

Watch out for

• Avatar videos are clearly synthetic and suit scripted content best
• There is no permanent free plan, so budget for a paid tier from the start
• Plan limits on credits and minutes need checking before buying, since costs scale with clip length and model

Best for

Teams that need presenter videos and voiceovers without filming — training departments, marketers and course creators producing scripted content at volume. Who should skip it: creators who need a real human presenter on camera, or anyone who only needs an occasional voiceover and would rather pay per project.

Pricing

Synthesys is a paid product with no permanent free plan. Paid plans start at $29 a month ($20 a month on annual billing), rising to $59 a month ($41 annual) and $119 a month ($83 annual) for more credits, faster processing and 4K export, with custom Enterprise above that. Confirm current prices on the official pricing page.

Example

A training manager pastes a 500-word onboarding script, picks a professional avatar and a calm voice, and generates a presenter video in minutes — then clones the company's trainer voice so every future module sounds consistent, and dubs the same video into Spanish for the wider team.

FAQs

What does Synthesys make? AI voices and video avatars from a script, for training, ads and explainers — plus dubbing, face swap and text-to-video generation.

Can I clone a voice? Yes, with tools for cloning a voice for consistent branding across your videos.

Do I need to film anything? No, avatar videos need no camera or studio — type the script and the avatar presents it.

Is it free? No — Synthesys has no permanent free plan. Paid plans start at $29 a month ($20 a month on annual billing); a limited demo is available to try before buying.

Reviewed / last checked: November 10, 2026.