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Somebody vs Synthesia

Synthesia is best known for AI video. It now also sells real-time products: Interactive Avatars for websites and apps, and Roleplay Sessions for training. Both stream avatar video from Synthesia’s cloud. Somebody renders the face in the visitor’s browser and covers website, roleplay, interviews and meetings in one agent platform.

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Comparison	Synthesia	Somebody
How the face is delivered	Avatar video rendered on Synthesia’s hosted GPUs and streamed over LiveKit and WebRTC.	Rendered live in the visitor’s browser. No video stream.
Before the visitor speaks	Not stated on the pages we read. Billing is per conversation minute, and managed sessions run up to 45 minutes.	Live on the page with no session and no minutes used.
Price	Interactive Avatars: $0.20 per conversation minute managed, or $0.10 when you bring your own agent stack. Roleplay Sessions: $29 a month per learner seat, $25 billed annually.	Pro $29/month: 150 minutes with Included AI or 1,000 with your own AI keys. Extra minutes $0.12 or $0.03.
Free plan	A launch offer of 500 free Interactive Avatar minutes was shown when we checked. Roleplay is free to build, with 10 shared sessions a month.	30 minutes a month with Included AI, 3-minute conversations, website embed included.
Which AI	Managed: Synthesia runs the model, speech and voice. API: you bring your own speech recognition, model and voice.	Included AI, or your own OpenAI, Google Gemini or Azure OpenAI keys.
Acting on your web page	Not listed on the pages we read.	Built in: navigates, highlights, searches and fills forms on your page.
Scored roleplay and LMS export	Roleplay Sessions: scoring against a skills rubric, AI coaching, a pass score, and SCORM export.	Rubric scoring with written feedback, and SCORM 1.2, cmi5 and xAPI export.
Video meetings	Not listed on the pages we read.	Joins Google Meet, Zoom and Microsoft Teams.
Shopify	Not listed on the pages we read.	Shopify concierge that builds a cart and starts checkout (Team plan).
Embedding	A widget, an inline embed or a hosted link, limited to the domains you allow. Or your own interface built on LiveKit.	Script tag, web component, JavaScript API or iframe.

Synthesia details were read from its public pages on 6 November 2026 and may have changed since. Sources: Interactive Avatars, Roleplay Sessions, pricing, docs. Synthesia is a trademark of its owner; Somebody is not affiliated with it. Tell us if something here is out of date and we’ll fix it.

Which one fits

An honest way to choose.

Choose Synthesia when

Your training already lives in Synthesia

You already make Synthesia videos and want roleplay beside them
You prefer a price per learner with unlimited practice sessions
You want a photorealistic video avatar, or one made from a real person

Choose Somebody when

You want one agent for the site and the training

The agent should be present on the page for every visitor, not only after a click
It needs to act: navigate, fill forms, build a cart
You train people and need scores and an LMS export
You want to run on your own OpenAI, Gemini or Azure agreement

What it costs

Synthesia prices its two real-time products differently. Interactive Avatars cost $0.20 per conversation minute when Synthesia runs everything, or $0.10 for the avatar alone when you supply the speech and model. Roleplay Sessions are sold per learner seat at $29 a month, with unlimited sessions for that learner. If a fixed group practises often, a seat price can work out cheaper than paying by the minute.

Somebody counts minutes only while a conversation is active. Pro is $29 a month with 150 avatar minutes on Included AI, or 1,000 on your own AI keys, where your provider bills you separately for the model. Extra minutes are $0.12 with Included AI and $0.03 with your own keys.

See what a waiting agent costs for how we measured the idle figure, and the pricing calculator to run your own numbers.

FAQ

Questions, answered.

Still curious? Ask our agent — it knows the product inside out.

Is Somebody a Synthesia alternative?

For live conversations, yes: a guide on your website, scored roleplay, interviews and meetings. For making videos that people watch, no. Synthesia is a video platform first and Somebody does not make videos.

Both offer scored roleplay. What is different?

Synthesia’s roleplay is a training product with a learner portal and seat pricing, delivered as streamed video. Somebody’s roleplay is one use of the same agent you can also place on a website or send to a meeting, priced by conversation minutes, with the face drawn on the learner’s device.

Can I use both?

Yes. Many teams keep an AI video tool for one-way content and use Somebody where people need to talk back or where the agent has to act on a page.