Soul Machines review: pricing, features, and use cases

The Tavus Team

July 14, 2025

Table of Contents

If your team is exploring lifelike digital avatars for customer engagement, you’ve probably come across Soul Machines and Tavus.

Both platforms enable branded, human-like experiences, but their approaches differ. This review summarizes Soul Machines’ features, pricing model, and use cases based on publicly available information, and contrasts those with documented capabilities from Tavus so you can select the best fit for your goals.

Overview: What Soul Machines offers and what this review covers‍

Soul Machines provides a platform for creating lifelike, AI-powered avatars called Digital People. These are designed to interact with users in real time for use cases such as customer engagement, virtual brand ambassadors, and training scenarios.

This review focuses on what’s confirmed publicly about Soul Machines (core features, procurement, and typical deployments) and compares those points to Tavus’s documented capabilities. The aim is to help product, marketing, CX, and IT leaders evaluate fit for their use cases.

We evaluated using publicly available marketing pages and documentation describing Studio, Digital People, and enterprise procurement via AWS Marketplace.

Soul Machines: features and capabilities

Based on public materials, Soul Machines positions itself around interactive, autonomously animated Digital People.

Platform and tools

Soul Machines Studio for creating, customizing, and deploying AI avatars (Digital People)

Avatar creation and customization

Create and customize Digital People (avatar appearance, voice, and other characteristics)

Interaction and behavior

Interactive AI avatar experiences
Autonomous, face-to-face AI agent interactions

Deployment and procurement

Deploy Digital People to production environments
Enterprise offering available via AWS Marketplace

Technical integrations and developer resources

Soul Machines provides a suite of integration options and developer tools to support embedding Digital People into enterprise environments. The platform offers:

Web SDK: A JavaScript library designed to integrate Digital People directly into frontend web applications, enabling seamless user experiences within existing digital products.
Skills API: Allows developers to build web services that empower Digital People to respond dynamically to user input.
Insights API: Provides programmatic access to analytics and interaction data, supporting measurement and optimization of Digital People deployments.

These APIs and SDKs facilitate compatibility with common enterprise systems, including CRM, chat platforms, and analytics tools, allowing organizations to tailor integrations to their specific workflows. Comprehensive documentation and developer resources are available through the Soul Machines Developer Docs portal.

Notes for evaluators

Public information confirms Studio-based creation and interactive, autonomous experiences. If your use case requires specific integrations or workflow automation, confirm technical details directly with the vendor. The availability of APIs and SDKs supports a range of integration scenarios, but implementation specifics may vary depending on your enterprise architecture.

Real-world deployments and customer case studies

While Soul Machines highlights a variety of potential use cases, several organizations have publicly implemented Digital People in production environments. For example:

The global bank ANZ launched a Digital Human named Jamie to assist customers with everyday banking questions, resulting in increased engagement and improved customer satisfaction scores.
In the automotive sector, Mercedes-Benz introduced a Soul Machines-powered Digital Person to provide interactive product information and support, enhancing showroom and online experiences.
The University of California, San Francisco (UCSF) has deployed Digital People for patient education and support, reporting positive feedback from both patients and staff regarding accessibility and ease of use.

These real-world examples demonstrate measurable outcomes such as higher user engagement, streamlined support processes, and positive user feedback, underscoring the practical value of Soul Machines in diverse industries.

A note on pricing and packaging

What’s known about Soul Machines pricing

Enterprise-focused offering with procurement available via AWS Marketplace
Exact pricing details are not publicly listed and typically require a sales engagement

How Tavus packages real-time AI humans and video generation

Tavus provides both real-time, interactive AI humans (Conversational Video Interface) and generative video at scale (Video Generation), delivered through white-labeled APIs and no-code tools. Documented plan structure and inclusions allow teams to select the right tier and scale up over time. Across tiers, Tavus includes:

API access and an end-to-end Conversational Video pipeline
No-code platform to create conversations
1080p video and 24kHz audio
Access to a stock Replica library, with options to train custom Replicas
Features such as Memories, Knowledge Base (RAG), Objectives & Guardrails, function calling, Bring Your Own LLM, 30+ languages, transcripts, and optional conversation recordings
Support that ranges from best-effort to dedicated priority and Slack-based technical support on Enterprise
SOC 2 and HIPAA compliance on select tiers

Example plan elements (as documented):

Included Conversational Video minutes with per-minute overage options
Maximum concurrent streams that increase by tier
Options for custom Replica trainings (with pay-as-you-go overage)
White-labeled Replica consent and professionally optimized Replicas on higher tiers

Total cost of ownership considerations

When comparing platforms, account for:

Avatar or Digital Person creation
Interaction design (e.g., objectives/guardrails for conversations)
Integration with existing systems via APIs and webhooks
Governance, compliance, and consent
Hosting, support, and analytics
Ongoing operations (content updates, persona iteration)

Where Tavus can reduce operational overhead

Tavus provides a complete humanlike OS out of the box:

Conversational Video Interface (CVI) for real-time AI humans
Video Generation for producing scripted or personalized videos at scale
Persona Builder to configure AI Personas (including Objectives & Guardrails) with a guided, no‑code flow
Foundational models that work in concert:
- Raven-0 perception for contextual, real-time visual understanding (e.g., emotion/intent interpretation, ambient awareness, prompted vision, and multi-channel inputs such as screensharing)
- Sparrow-0 for intelligent, human-like turn-taking with optimized latency and configurable conversation flow
- Phoenix-3 for full-face, real-time rendering with studio-grade fidelity, identity preservation, and industry-leading lip sync
Advanced capabilities to increase accuracy and speed:
- Knowledge Base (RAG) with fast retrieval to ground responses in your documents and URLs
- Memories to persist user- and persona-specific context across sessions
- Function calling and Bring Your Own LLM for workflow execution and flexible intelligence
White-labeled APIs, SDKs, and webhooks to embed quickly while retaining full brand control

Use cases and fit: when to choose Soul Machines

Best-fit scenarios for Soul Machines (based on public info)

Interactive, autonomously animated Digital People for customer engagement
Virtual brand ambassadors in retail, kiosk, or web environments
Guided experiences and training simulations requiring real-time, two-way interaction
Enterprise procurement through AWS Marketplace
Proven deployments in sectors such as banking (ANZ), automotive (Mercedes-Benz), and healthcare (UCSF), with demonstrated improvements in user engagement and satisfaction

Best-fit scenarios for Tavus

Tavus is designed to add a human layer across products and services with real-time AI humans and scalable video generation. Common documented applications include:

Marketing and sales
- Real-time customer onboarding for every user
- Conversational customer education
- Video Generation for sales outreach and personalized landing experiences
Education and training
- Role-play for interviews, sales calls, and other high-stakes scenarios
- Mock interviews and corporate training with lifelike, turn-taking AI humans
Customer experience and support
- Human-like support agents that can perceive, understand, and take action
E-commerce and service
- Live shopping assistants and concierge-style helpers
HR and recruiting
- First-round screening and consistent onboarding experiences
Healthcare and wellness
- Patient intake and navigation, with options to scale expertise

Overlap and complementary use

Both platforms can deliver branded digital-human experiences. Teams seeking autonomous, interactive Digital People for a front-door experience might evaluate Soul Machines; teams needing lifelike conversations and/or high-scale video generation with perception, turn-taking, and guardrails can evaluate Tavus. Some organizations may deploy both approaches in different points of the journey.

Implementation, integrations, and control

Soul Machines implementation path (typical, based on public info)

Design a Digital Person in Studio
Configure behaviors for autonomous interaction
Integrate with back-end systems as needed, using available APIs and SDKs such as the Web SDK for frontend integration, Skills API for conversational logic, and Insights API for analytics and reporting
Procure and deploy (often via AWS Marketplace)

Tavus implementation path

Choose or train Replicas (use stock Replica library or train custom Replicas)
Build Personas with the Persona Builder, including Objectives & Guardrails
Enable real-time perception (Raven-0), intelligent turn-taking (Sparrow-0), and full-face rendering (Phoenix-3)
Ground responses with Knowledge Base (RAG) and persist context with Memories
Execute workflows with function calling and Bring Your Own LLM
Embed via white-labeled APIs, SDKs, and webhooks; configure concurrency, recording, and transcripts as needed
Performance and quality:
- End-to-end, multimodal pipeline designed for sub-1s latency
- Optimized turn-taking and response timing
- 1080p video and industry-leading lip sync

Decision checklist

Use this rubric to evaluate both platforms for your pilot:

Experience design
- Avatar realism and full-face expression fidelity
- Turn-taking quality and latency for natural, real-time conversation
- Perception: ability to interpret emotion, environment, and shared visuals
- Objectives & Guardrails for guided outcomes
Intelligence and grounding
- Knowledge Base (RAG) and document grounding
- Function calling and Bring Your Own LLM
- Memory across sessions
Integration and scalability
- API and webhook capabilities
- Concurrency limits and performance SLAs aligned to your traffic
- Compliance, consent, and brand control
Packaging and operations
- Available tiers, included minutes, and overage pricing
- Support model and deployment timeline
- Ongoing persona and content operations

How to pilot effectively

Select a narrow, high-value scenario (e.g., onboarding step, role-play drill, or targeted sales outreach)
Define clear KPIs (engagement time, completion rate, conversion, or CSAT)
Configure Objectives & Guardrails and enable Knowledge Base for accuracy
Instrument analytics and run a time-boxed A/B test (e.g., 30–60 days)
Capture implementation effort, governance review, and user feedback to inform scale-up

Closing thought

If you need interactive, autonomously animated Digital People with enterprise procurement via AWS Marketplace, Soul Machines is a viable option to evaluate. If you’re looking to embed lifelike, real-time AI humans with perception, natural turn-taking, and full-face realism—or to generate personalized videos at scale with the same humanlike presence—Tavus provides an end-to-end, multimodal system designed to help teams move fast, stay on brand, and deliver meaningful face-to-face experiences at scale.