Synthesia Interactive Avatars are real-time chat twins, like the TechCrunch journalist avatar. Kompozy generates & publishes avatar content across 9 platforms.
If you landed here after the September 2026 TechCrunch piece — where a reporter built a Synthesia avatar of herself you can actually talk to — the first thing to get straight is which product you're evaluating. Synthesia Interactive Avatars are the real-time, two-way side of Synthesia: a photorealistic avatar that joins a live session, listens to a spoken question, and answers on the fly, grounded in a knowledge base you define. The journalist's version was trained on one article and answers only about that story. It's an impressive, developer-oriented, live conversation engine, and this page won't pretend otherwise.
I run Kompozy, and the honest framing is that Kompozy is not a rival conversational avatar — it does not have a real-time talk-back twin, and if that's specifically what you need, Synthesia (or peers like HeyGen's interactive avatar, Tavus, or D-ID Agents) is the right tool, not Kompozy. What Kompozy does is the opposite half of the problem: it generates a published, on-brand avatar-video presence and every other content format, then schedules and distributes it across nine platforms. Most people who watch the journalist demo don't actually want to build a chatbot — they think "I want an AI version of me on camera, working for me." That instinct points at content and distribution, which is Kompozy's job, not the live-agent job Interactive Avatars are built for.
So this is less "which is better" and more "which problem." A live agent answers whoever shows up and asks. A content engine is what gets anyone to show up in the first place — the recurring posts, in one voice, across every feed. The two can even run together: Synthesia's twin as the site concierge, Kompozy as the outbound machine that fills the calendar and points people at it.
Everything below reflects both products as of 2026-09-26. Synthesia's Interactive Avatars pricing and mechanics are drawn from its live feature page and the TechCrunch account; verify current figures there, since Synthesia iterates on providers and pricing often. No invented weaknesses — the interactive avatar's realism, grounding, and provider flexibility are real, and I frame them as such.
Synthesia Interactive Avatars are photorealistic AI avatars that hold real-time voice conversations inside a product, website, or internal tool. Rather than rendering a fixed video, the avatar joins a live session (Synthesia's docs describe joining a video room via LiveKit), listens, and responds in the moment. Under the hood it's a stack — voice-to-text, a language model, and text-to-voice — driving Synthesia's proprietary real-time video model, and it's built for developers: you attach it to your own agent, bring your own LLM and conversation logic, and can swap in third-party providers such as Cartesia, ElevenLabs, Google, or OpenAI. The library exceeds 240 avatars with broad language support, plus custom avatars of a specific, consented person — the journalist twin was built from a photo session and roughly a two-minute voice sample. A defining discipline, shown in that demo, is grounding: the avatar was trained on one article and constrained to answer only questions about it, refusing everything else. Pricing is pay-as-you-go at $0.12 per minute of conversation. What it does not do is generate any content you post: no clipping, no carousels, images, quote cards, blogs, or newsletters, no per-platform sizing, and no scheduler or social publishing. It answers questions live; it doesn't fill a feed.
People look past Interactive Avatars as their main tool for a simple reason: a live chat agent isn't a content strategy. The demo is compelling, but an interactive avatar waits for a visitor to arrive and ask — it never goes out and earns the audience, and there's nothing to export, clip, or schedule because a real-time conversation isn't a file. If your actual goal is to grow, you need the outbound half: a recurring avatar-video presence, plus clips, carousels, images, a blog, and a newsletter, all in one voice, posted across every platform on a schedule. None of that is what Interactive Avatars are for. Two other frictions push creators to look elsewhere: setup is developer-oriented (a plugin, an agent session, your own LLM), which is overkill for a marketer who just wants published content; and the per-minute meter measures conversation time, a unit with no relationship to how much content you ship. The alternative most people actually want after the journalist story isn't a cheaper chatbot — it's the engine that turns a consented, consistent identity into published, on-brand content everywhere. Kompozy is that engine.
| Feature | Synthesia Interactive Avatars | Kompozy | Note |
|---|---|---|---|
| Real-time, two-way conversational avatar | Yes — core capability | No | This is Synthesia's job, not Kompozy's — Kompozy has no live talk-back avatar. If you need a chat agent, keep Synthesia. |
| Custom consented avatar / twin | Yes — photo + ~2min voice | Yes — face-locked persona pool | Synthesia's is a conversational twin; Kompozy's persona is a generated, face-locked identity used across published formats. |
| Grounded knowledge-base Q&A | Yes | No | The journalist avatar answers only about one article; Kompozy doesn't answer live questions at all. |
| Generate publishable video (clips / shorts) | No | Yes | Kompozy generates Persona Shorts and Clipped Shorts as exportable, feed-ready video; a live conversation isn't a file. |
| Carousels, images, quote cards | No | Yes | Kompozy makes brand-exact Carousels, Photo Posts, Infographics, and Quote Graphics. |
| Blog + newsletter generation | No | Yes | Kompozy ships Blog Articles and Email Newsletters from the same source under a Persona Brief. |
| Brand-voice governance across formats | Partial — per avatar | Yes — Persona Brief | Kompozy's Persona Brief + banned-word filters hold one voice across every published format. |
| Scheduling & autopilot | No | Yes | Kompozy has Autopilot plus a per-post review pipeline; an interactive avatar has nothing to schedule. |
| Direct publishing to social + blog + email | No | Yes | 9 platforms from one queue; Interactive Avatars are embedded, not published. |
| AI-disclosure control at publish time | You manage it | Yes — per-post review | Kompozy's review gate is where you stamp an AI-disclosure before anything ships. |
| Setup | Developer (plugin, BYO-LLM) | No-code | Interactive Avatars assume engineering resources; Kompozy is a no-code content workflow. |
| Pricing unit | Per conversation-minute | Generation credits | $0.12/min of chat vs credits per generation — conversation time has no relationship to content output. |
| Tier | Synthesia Interactive Avatars plan | Synthesia Interactive Avatars price | Kompozy plan | Kompozy price |
|---|---|---|---|---|
| Entry | Interactive Avatars (pay-as-you-go) | $0.12/min of conversation | Kompozy Starter | $99/mo (5,500 credits) |
| Mid | Custom interactive avatar | Custom (confirm on site) | Kompozy Pro | $299/mo (18,000 credits) |
| Top | Synthesia Enterprise | Custom (sales-led) | Kompozy Enterprise | Custom (sales-led) |
Here's the honest split. Synthesia Interactive Avatars are a live conversation engine — a photorealistic twin that answers whoever shows up and asks, embedded in your product or site. If that's the job, keep it; Kompozy has no real-time chat avatar and isn't trying to build one. But answering visitors and earning visitors are two different machines. Kompozy is the second one: it generates a recurring, on-brand avatar-video presence — Persona Shorts and HeyGen Video Agent output from a face-locked persona — then turns the same idea into Clipped Shorts, Carousels, Photo Posts, Quote Graphics, Blog Articles, Email Newsletters, and native Text Posts, all governed by one Persona Brief. Autopilot and a per-post review pipeline schedule and publish the whole package across nine social platforms plus blog and email from a single queue, and that review step is where you add the AI-disclosure the journalist experiment says matters most. Synthesia's twin handles the conversation when someone lands; Kompozy is what makes them land, on brand, every week. If you watched the demo and thought "I want an AI version of me working for my audience," that's the content-and-distribution job — start on Kompozy Starter at $99/mo, and run the Synthesia twin alongside it if you also want a live agent.
No — not for the live conversation. Interactive Avatars are a real-time, two-way chat agent you embed, and Kompozy has no equivalent talk-back avatar. Kompozy replaces the other half: if your goal is a published, on-brand avatar-video presence and a full content week across platforms, Kompozy generates and distributes that, which Interactive Avatars don't do. Many teams would run both.
No. That interactive twin holds a live voice conversation grounded to a knowledge base — a Synthesia capability. Kompozy generates avatar video from a face-locked persona and publishes it across nine platforms, but it doesn't field real-time questions. If you specifically want a conversational avatar, Synthesia, HeyGen's interactive avatar, Tavus, or D-ID Agents are the tools to look at.
Synthesia lists Interactive Avatars at $0.12 per minute of conversation, pay-as-you-go with no minimum; custom-avatar and enterprise terms sit alongside its broader plans. Kompozy is $99/mo (5,500 credits) on Starter and $299/mo (18,000 credits) on Pro, metered by generations plus publishing. They price different jobs — chat time versus content output — so compare by what you actually need.
No. Interactive Avatars are embedded, real-time agents — they generate live conversation, not exportable posts, and there's no clipping, scheduling, or publishing. To build a published avatar presence, Kompozy generates avatar video plus clips, carousels, images, blogs, and newsletters and publishes them across nine platforms from one queue.
Decide whether you want to answer people or reach people. To answer live questions on your site, build a Synthesia interactive avatar, grounded to a knowledge base and clearly disclosed as AI. To reach an audience, build a published presence in Kompozy: one consented, face-locked identity generating avatar video and every other format, scheduled across nine platforms with a disclosure at the review gate. They complement each other.