Synthesys

Synthesys is an AI video and voice platform built to produce professional videos — product ads, UGC-style content, explainers, and more — without cameras, actors, or studios. It generates AI avatar videos and voiceovers from text, orchestrating leading AI models, and offers a big library of avatars and voices across many languages with lip-sync dubbing. For creators, marketers, and businesses that need video content quickly and affordably, Synthesys is a versatile option.

What is Synthesys?

Synthesys is an AI video generation platform (founded in London in 2020) that creates professional videos across many formats, orchestrating frontier AI models to produce product ads, UGC-style content, explainer videos, and more. Its video capabilities include UGC-style ads, AI avatar and spokesperson videos, product demos and commercials, short-form social videos (TikTok, Instagram Reels), training videos up to around 30 minutes, and multilingual dubbing across 140-plus languages with lip-sync. Its production resources include over 1,000 AI avatars, 400-plus studio-quality voices, and 140-plus language options, plus templates and newer features like AI face swap. Synthesys emphasizes cost savings, advertising equivalent-quality videos from roughly $0.50 each versus thousands for traditional production, and includes full commercial rights across plans. It offers paid plans (with promotions); pricing is on the site.

What it does well

• AI avatar video: presenter-led videos from text.
• Big library: 1,000+ avatars and 400+ voices.
• Multilingual: 140+ languages with lip-sync dubbing.
• Affordable: low per-video cost with commercial rights.

Who it is for

Synthesys fits marketers, content creators, e-learning developers, and businesses that need to produce video content — ads, explainers, product demos, training — quickly and affordably, without filming, and who value a large avatar and voice library and multilingual dubbing. Its low per-video cost and commercial rights suit high-volume content needs. Creators wanting cinematic, non-avatar footage will want other tools, and AI avatar videos have a recognizable style that benefits from review, but for producing marketing and explainer videos affordably at scale, Synthesys is a capable choice.

Things to keep in mind

• AI avatar videos have a recognizable synthetic style.
• AI-generated video and voice should be reviewed before publishing.
• It is a paid platform, though it advertises low per-video costs.

Our verdict

Synthesys is a versatile AI video and voice platform, and its strengths — generating AI avatar videos, ads, and voiceovers from text, with over 1,000 avatars, 400-plus voices, and dubbing across 140-plus languages with lip-sync — make producing marketing and explainer content fast and affordable, with full commercial rights and a low per-video cost. Newer features like face swap extend it further. AI avatar videos carry a synthetic style and output needs review, but for creators and businesses producing video content affordably at scale, Synthesys is a capable choice.

Frequently asked questions

What is Synthesys?

Synthesys is an AI video and voice platform that generates AI avatar videos, ads, and voiceovers from text, with 1,000+ avatars, 400+ voices, and 140+ languages with lip-sync.

What can Synthesys create?

It creates UGC-style ads, AI avatar and spokesperson videos, product demos, explainers, short-form social videos, and multilingual dubbed content.

Is Synthesys free?

Synthesys offers paid plans (with promotions) and full commercial rights across plans, advertising videos from around $0.50 each; see the site for pricing.

Who is Synthesys for?

It is for marketers, creators, e-learning developers, and businesses that need to produce video content quickly and affordably without filming.