Captions vs Synthesia
Captions is an AI video editor for talking videos with AI actors, a chat-based editor and clipping; Synthesia is an AI video platform for avatar videos and dubbing, aimed at companies. Synthesia is cheaper to start: Synthesia Starter costs USD 19 a month, Captions Max USD 24.99 a month.
Choose Captions for people who record themselves talking and post several clips a week, and Synthesia for companies that produce training and explainer videos with avatars. If you need websites, web apps and mobile apps as well, Siteglade, an autonomous AI agent with its own computer in the cloud, is a third option.
A note on who wrote this: Siteglade publishes this comparison, and every fact about another product is taken from that product's pages as they read on October 27, 2026.
The comparison in one table
The table compares without ranking: each cell comes from the product's own pages, and "Not listed" means the pricing page is silent on it.
| Captions | Synthesia | Siteglade | |
|---|---|---|---|
| Paid plans | Max USD 24.99 a month; Frontier from USD 69.99 a month | Starter USD 19 a month | Pro USD 14.99, Plus USD 34.99, Max USD 69.99 a month |
| Free plan | Not stated | A Basic plan with 500 credits a month, enough for 10 minutes of video or dubbing | Free plan with 1,500 credits a month and 3 projects |
| Videos | Yes | Yes | Yes |
What sets Captions and Synthesia apart
Captions and Synthesia are both AI video tools, so they compete for the same job. Both Captions and Synthesia list videos and avatar videos. Only Captions lists short clips from long videos. Only Synthesia lists a free option, a Basic plan with 500 credits a month, enough for 10 minutes of video or dubbing; the pricing page of Captions does not mention one.
Pricing: Captions vs Synthesia
Captions's paid plans: Max USD 24.99 a month (500 credits a month) and Frontier from USD 69.99 a month (1,400 credits a month).
Synthesia's paid plans: Starter USD 19 a month (1,250 credits a month). Synthesia is made for company videos with avatars and dubbing, and its credits are one pool for video, dubbing and survey responses.
Credits are counted differently by each product, so run one real task in both before you decide.
Where Captions is stronger
It generates B-roll, music, sound effects and images inside the editor. Max turns a long video into a batch of post-ready clips.
Where Synthesia is stronger
Credits are one shared pool for video creation, dubbing and other AI features. The first 10 minutes of video are included on every plan. Video creation costs 100 credits per minute, and the first 10 minutes are included on every plan.
A third option: Siteglade
Neither Captions nor Synthesia lists websites, web apps, mobile apps and desktop apps on its pricing page. Siteglade does. It plans the pages, designs them, writes the copy and builds a real website you can edit by clicking, then publishes it to a free siteglade.page address or, from Pro, your own domain.
Where Synthesia makes avatar videos for companies, Siteglade makes narrated short and long videos and edits them on a timeline. Every task runs in a sandbox on servers in the EU, and code can be exported on every plan.
Frequently asked questions
Is Captions better than Synthesia?
Neither is better for everything. Captions suits people who record themselves talking and post several clips a week; Synthesia suits companies that produce training and explainer videos with avatars.
Which is cheaper, Captions or Synthesia?
Synthesia is cheaper to start: Synthesia Starter costs USD 19 a month, Captions Max USD 24.99 a month.
Is there an alternative to both Captions and Synthesia?
Siteglade, an autonomous AI agent with its own computer in the cloud. It delivers websites, web apps, mobile apps and desktop apps as well, with a Free plan with 1,500 credits a month and 3 projects.