Best for
Best for enterprises putting an interactive digital person in front of customers or staff inside an existing service workflow.
- Small and mid-sized
- Enterprise
AI Avatars Comparison
Soul Machines vs. Synthesys
At a glance
At a glance
Best for
Best for marketing teams and agencies producing the same message as avatar video across many languages.
- Freelancers
- Small and mid-sized
- Enterprise
Cataleo does not name a winner. Both statements come from the vendors themselves.
Full Comparison
| Criterion | Soul Machines | Synthesys |
|---|---|---|
| Starting price | lower value Studio Basic $12.99 / month A free Studio tier exists but carries no conversation minutes. Basic includes 40 conversation minutes a month; annual billing is $140 a year for 480 minutes. Workforce Connect and Digital Workforce are priced separately. | Indie from $20 / month Billed annually; $29 / month billed monthly. Plans are credit-based, and annual billing is advertised as 40 percent cheaper than monthly. |
| Free trial | Free Studio tier (Studio access, no conversation minutes) | Not stated |
| Commercial use | Not stated | Yes, full commercial rights on all plans with no royalties or attribution |
| Output | Interactive digital people, plus video downloads on paid Studio plans | Avatar and ad video, up to 4K, plus voiceover |
| API | Yes, API access on Digital Workforce for custom integrations | Yes for text to speech; the avatar video products are not covered by it |
| Avatar library | Yes, AI Assistant templates in Studio covering customer service, HR benefits enrollment, operations coaching and clinical trial onboarding; Workforce Connect and Digital Workforce ship six Digital Workers | Yes, 1,000+ AI avatars grouped by role: corporate presenters, lifestyle hosts, tutors and sales spokespeople |
| Custom and cloned avatars | Yes, an Avatar Design Tool on paid Studio plans, with look, tone and personality configuration | Yes, digital twins from the user's own face plus voice cloning; 5 twins on Indie, 15 on Studio, unlimited on Agency |
| Languages and translation | Yes, multiple languages and premium voices through an ElevenLabs integration | Yes, 140+ languages with lip-sync matched to each language's phonemes, and 400+ voices |
| Editor | Yes, Soul Machines Studio, a browser tool for building the conversation, gestures, behaviour and voice, with a reporting dashboard | Yes, a script-driven line-by-line editor with templates for UGC ads, commercials, product demos and training clips; export in HD or 4K in several aspect ratios |
| Learning features | No. The documented use cases are customer service, operations, HR benefits and healthcare guidance, and neither the product site nor the developer documentation describes course authoring, quizzes, branching scenarios or SCORM export | No. Neither quizzes, branching nor SCORM export to an LMS is offered; training and course video is made with the same avatars, templates and editor as any other video |
| Deployment | Cloud (SaaS), Browser-based | Cloud (SaaS), Browser-based |
| Support | Email helpdesk | Email helpdesk |
| Onboarding | Documentation and knowledge base | Documentation and knowledge base |
| Company size | Small and mid-sized, Enterprise | more entries Freelancers, Small and mid-sized, Enterprise |
| Integrations | Salesforce, ServiceNow, Zapier, ElevenLabs | Not stated |
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Row where the values differ The small markers point at the lower number, the longer list or the stated feature. They describe the data, they are not a verdict.
The short version
Key Differences
- Starting price Soul Machines Studio Basic $12.99 / month Synthesys Indie from $20 / month
- Company size Soul Machines Small and mid-sized, Enterprise Synthesys Freelancers, Small and mid-sized, Enterprise
- Output Soul Machines Interactive digital people, plus video downloads on paid Studio plans Synthesys Avatar and ad video, up to 4K, plus voiceover
- API Soul Machines Yes, API access on Digital Workforce for custom integrations Synthesys Yes for text to speech; the avatar video products are not covered by it
- Avatar library Soul Machines Yes, AI Assistant templates in Studio covering customer service, HR benefits enrollment, operations coaching and clinical trial onboarding; Workforce Connect and Digital Workforce ship six Digital Workers Synthesys Yes, 1,000+ AI avatars grouped by role: corporate presenters, lifestyle hosts, tutors and sales spokespeople
Every line is one datapoint from the table above, picked automatically. Nothing here is written text.
The trade-offs
Strengths and Limitations
Soul Machines
Strengths
- Interactive conversation rather than a rendered clip, with configurable gestures and behaviour
- LLM-agnostic, with custom model integration from the Plus plan
- SOC 2 and ISO 27001 compliance, SSO and data encryption on Digital Workforce
Limitations
- Steep price ladder, from $12.99 a month to $40,000 a year
- Billed by conversation minutes, so cost scales with how much people talk to it
- Zapier integration needs a separate Zapier subscription
Synthesys
Strengths
- 140+ languages and 400+ voices, with lip-sync matched per language
- Full commercial rights on every plan, with no royalties or attribution
- Unlimited voice-cloning slots and digital twins on the Agency plan
Limitations
- No free tier or free trial, so evaluation starts at a paid plan
- Credit-based, so long or high-resolution videos consume the monthly allowance quickly
- No learning features such as quizzes, branching or LMS export
- 4K export and a second seat only from the Agency plan upwards
Plans
Pricing
Soul Machines
- Studio Free $0 Free forever. Studio access, AI assistant creation, templates, gestures and behaviour and voice configuration. No conversation minutes.
- Studio Basic $12.99 Per month for 40 conversation minutes, or $140 a year for 480. One AI assistant, 20 video downloads, live deployment, reporting dashboard, avatar design tool and tech support.
- Studio Plus $99 Per month for 350 conversation minutes, or $1,069 a year for 4,200. Three AI assistants, 100 video downloads and custom LLM integration.
- Studio Pro $2,700 Per month for 10,000 conversation minutes, or $29,160 a year for 120,000. Six AI assistants and unlimited video downloads. Pro with premium integrations is $34,160 a year and adds ServiceNow and Zapier workflow integration.
- Workforce Connect $40,000 Per year. Six Digital Workers, 120,000 conversation minutes, tone and personality configuration, Zapier integration (separate Zapier subscription required) and email support.
- Digital Workforce Not stated Custom pricing. Six or more Digital Workers, premium voices and multiple languages, central knowledge hub, API access, SOC 2 and ISO 27001 compliance, SSO, data encryption and an analytics dashboard.
Synthesys
- Indie $20 Per month, billed annually ($29 billed monthly). 1,000 credits per month, 10 voice-cloning slots, 5 digital twins, 1,080p export, 1 seat.
- Studio $41 Per month, billed annually ($59 billed monthly). 2,500 credits per month, 25 voice-cloning slots, 15 digital twins, fast processing, 1,080p export, 1 seat.
- Agency $83 Per month, billed annually ($119 billed monthly). 5,400 credits per month, unlimited voice cloning and digital twins, 4K export, 2 seats.
- Enterprise Not stated Custom. Everything in Agency plus volume discounts, a dedicated account manager, custom contracts and an SLA.
What users say
Review Scores · opens after launch
Soul Machines
- Ease of use
- Not rated yet
- User interface
- Not rated yet
- Onboarding
- Not rated yet
- Support and service
- Not rated yet
- Value for money
- Not rated yet
- Features
- Not rated yet
No reviews yet. Be the first to review this tool. Every review is checked for fairness before it appears, and the vendor cannot have one removed.
Synthesys
- Ease of use
- Not rated yet
- User interface
- Not rated yet
- Onboarding
- Not rated yet
- Support and service
- Not rated yet
- Value for money
- Not rated yet
- Features
- Not rated yet
No reviews yet. Be the first to review this tool. Every review is checked for fairness before it appears, and the vendor cannot have one removed.
Where this comes from
Where this comes from
Soul Machines https://www.soulmachines.com · no check date recorded yet
Synthesys https://synthesys.io · no check date recorded yet
This table lists factual criteria taken from information the vendors publish themselves. For how we put it together, see the methodology.