GLX Studio turns your content into personalized video that tells a story, at scale, without breaking your stack. Tavus is a developer platform for AI replicas: record a person once, then generate personalized talking-head videos, and even real-time conversational avatars, through an API. Both take personalization seriously. Here is an honest side-by-side on what each one is actually for.
Tavus starts from a person: record once, build a lifelike replica, then generate variants of that replica speaking. GLX starts from your content: Story Builder turns a PDF, a deck, or a prompt into a scene-planned video with B-roll, voiceover, and brand automation. Both expose APIs. The difference is what the video is made of.
| Capability | GLX Studio | Tavus |
|---|---|---|
| Core model | Story engine: a PDF, PPT, or prompt becomes a scene-planned narrative video | Replica engine: record a person once, generate personalized talking-head variants |
| What carries the message | Your documents and data: scenes, licensed Storyblocks B-roll, AI voiceover | A lifelike digital replica of a person speaking a script |
| Personalization at scale | One video per CSV row, form submission, or API call. 1 credit = 1 video. A Fortune 500 customer: 50,000+ videos in three weeks | Variable-driven replica videos generated through the API |
| Source content | PDF, PPT, prompt, plus a media library with auto-tagging | Scripts and variables you supply to the API |
| Real-time conversational video | Not the focus. GLX renders finished videos for campaigns and libraries | A core offering: real-time conversational replicas; check current docs |
| Developer surface | API plus an MCP server, so agents can generate video as a native tool call | Developer-first APIs for replica creation and video generation |
| Non-developer workflow | Full web app: sales, marketing, and L&D teams ship video without engineering | Primarily developer-driven; check current product for studio tooling |
| Localization | 75+ languages via ElevenLabs voiceover, from one template | Multi-language replica speech; check current docs for coverage |
| Brand control | Brand automation: bumpers, watermarks, and brand rules on every render | Your replica and your script; the surrounding brand system is your build |
| Integrations | HubSpot, Salesforce, Outreach, Brightcove, Kaltura, SharePoint, Drive | API-led: you build and maintain the connections |
| Pricing model | Starter free, Teams $149/mo, Business $499/mo, Enterprise custom. Sub-$1 per video at enterprise scale | Usage-based API plans at time of writing; check current pricing |
| Best for | Video that must carry real content: decks, docs, and data, at enterprise scale, for mixed teams | Replica-led talking-head personalization and conversational AI, embedded by developers |
Both platforms are API-friendly, so this is mostly a repoint, not a rebuild. Most teams migrate in 2-4 weeks, and some keep a replica tool for face-led moments while GLX carries the content.
Map every place your code calls Tavus: templates, scripts, and the variables you inject. That variable list becomes your GLX personalization schema.
Instead of writing scripts for a replica to read, feed GLX the deck, PDF, or prompt behind them. Story Builder plans scenes, B-roll, and voiceover from the source itself.
Replace Tavus generation calls with GLX's template-based endpoints. Wire agents through the MCP server, and give non-developers the CSV and form paths.
Run one campaign both ways to the same audience and compare click-through and conversion. A Fortune 500 customer's flagship campaign hit a 10.4% CTR and a 4x conversion lift.
Tavus is a replica platform: record a person once, then generate personalized talking-head videos, and real-time conversational avatars, through a developer API. GLX Studio is a story engine: it turns your documents, decks, and prompts into scene-planned videos with B-roll, 75+ language voiceover, and brand automation, available through a web app, an API, and an MCP server. Tavus starts from a face; GLX starts from your content.
GLX's API is template-based: define a template once, then generate variants by passing variables, a CSV, or a form submission. GLX also ships an MCP server, so AI agents can create video as a native tool call in agentic workflows. And because GLX is a full product rather than only an API, the same templates are usable by non-developers in the web app.
No. GLX composes videos from your source content, your media library, licensed Storyblocks B-roll, and AI voiceover in 75+ languages via ElevenLabs. If you need a lifelike digital twin of a specific person, that is Tavus's specialty. If you need the video to present your actual content with brand control, that is GLX's.
They overlap on personalization at scale but differ on substance. Tavus excels when the message is a person speaking: outreach, greetings, real-time conversational agents. GLX is built for video that must carry documents, data, and narrative: product stories, onboarding, training, and campaign content, with localization and enterprise controls like SOC 2 Type II and SAML SSO. Check Tavus's current docs for its latest capabilities.
GLX is credit-based and predictable: 1 credit = 1 video, across Starter (free), Teams $149/month, Business $499/month, and Enterprise custom, reaching sub-$1 per video at enterprise scale. Tavus uses usage-based API pricing at time of writing; check its current pricing page. For high-volume, content-led campaigns, GLX's benchmark is a Fortune 500 customer generating 50,000+ videos in three weeks.
It depends on what wins the reply. If a familiar face saying the prospect's name is the hook, a replica tool fits. If the video needs to show the prospect their numbers, their industry, or your proposal, GLX fits: one template generated 50,000+ personalized videos in three weeks for a Fortune 500 customer, with a 10.4% click-through rate and a 4x conversion lift. Many teams route by use case rather than picking one.
Try GLX Studio with your content. Bring a deck, a PDF, or a CRM list. We'll show you what a story engine generates that a replica alone can't carry.