Best for
Best for developers adding a real-time video face to a voice AI agent they already run.
AI Avatars Comparison
Simli vs. Tavus
At a glance
At a glance
Best for
Best for developers and product teams building real-time conversational video or AI human replicas into their apps.
- Freelancers
- Small and mid-sized
- Enterprise
Cataleo does not name a winner. Both statements come from the vendors themselves.
Full Comparison
| Criterion | Simli | Tavus |
|---|---|---|
| Starting price | Free plan; paid use is pay as you go The free plan carries $10 of credit on signup and a monthly top-up of 50 minutes. Paid use is billed as you go with volume discounts; Simli does not publish a per-minute rate on its site, and the pricing detail sits behind a sign-in in the app. | Starter $59 / month A free Basic plan is available; paid plans add usage-based charges. |
| Free trial | Free plan with $10 of credit on signup and a monthly top-up of 50 minutes | Free Basic plan (25 conversational video minutes) |
| Output | Real-time lip-synced video avatars streamed over WebRTC | Real-time conversational video and AI human replicas at 1080p |
| API | Yes, the product is an API | Yes, plus a hosted MCP server at mcp.tavus.io/mcp |
| Avatar library | Yes, 21 default faces documented for immediate use | Yes, 25 stock replicas (AI humans) on the free plan, 100+ from Growth |
| Custom and cloned avatars | Yes, upload a face image in the web app; processing takes a couple of hours | Yes, custom AI human replicas trained from video (3 on Starter, 7 on Growth) |
| Languages and translation | No list of its own. Simli lip-syncs whatever audio it is handed, so the spoken languages come from the speech services in your own stack; for Simli Auto the documentation points at the language list of its speech-to-text provider, Deepgram, and names ElevenLabs as the text-to-speech example | Yes, 30+ languages, 42+ via the developer API |
| Editor | No, there is no video editor: faces are created in the web app and driven from your own application code | PAL Maker, a web tool for assembling conversational agents; everything else is put together through the API |
| Learning features | No, Simli is an avatar streaming layer without courses, quizzes or SCORM export | No. There is no course builder, no quizzes or branching and no SCORM export; the product is a developer platform for live conversation rather than a course authoring tool |
| MCP-ready | No | stated Yes |
| Deployment | Cloud (SaaS), Browser-based | Cloud (SaaS), Browser-based |
| Support | Community forum | more entries Email helpdesk, Community forum |
| Onboarding | Documentation and knowledge base | Documentation and knowledge base |
| Company size | Not stated | Freelancers, Small and mid-sized, Enterprise |
| Integrations | LiveKit, Pipecat | more entries LiveKit, Pipecat, Google Meet, Zoom |
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The short version
Key Differences
- Starting price Simli Free plan; paid use is pay as you go Tavus Starter $59 / month
- Free trial Simli Free plan with $10 of credit on signup and a monthly top-up of 50 minutes Tavus Free Basic plan (25 conversational video minutes)
- Support Simli Community forum Tavus Email helpdesk, Community forum
- MCP-ready Simli No Tavus Yes
- Output Simli Real-time lip-synced video avatars streamed over WebRTC Tavus Real-time conversational video and AI human replicas at 1080p
Every line is one datapoint from the table above, picked automatically. Nothing here is written text.
The trade-offs
Strengths and Limitations
Simli
Strengths
- Under 300 milliseconds of added latency, so the face keeps up with a live conversation
- Open-source plugins for LiveKit Agents and Pipecat, plus JavaScript and Python SDKs
- Free plan with signup credit and a monthly minute top-up
Limitations
- Renders the face only: speech, language model and voice come from your own stack
- No editor and no finished video files, so it needs engineering work
- Custom avatar processing takes a couple of hours
Tavus
Strengths
- Real-time conversational video, not just pre-rendered clips
- Full developer API across video, audio and conversation
- Free Basic plan with 25 conversational video minutes
Limitations
- Built for developers, so it needs integration work
- Paid plans add usage-based charges beyond plan limits
Plans
Pricing
Simli
- Free $0 $10 of credit on signup and a monthly top-up of 50 minutes.
- Pay as you go Not stated Usage-based billing with volume discounts.
Tavus
- Basic $0 Free. 25 conversational video minutes and 25 stock replicas.
- Starter $59 Per month, plus usage. 3 custom AI human replicas.
- Growth $397 Per month, plus usage. 7 custom AI human replicas.
- Enterprise Not stated Custom pricing.
What users say
Review Scores · opens after launch
Simli
- 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.
Tavus
- 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
Simli https://www.simli.com · no check date recorded yet
Tavus https://www.tavus.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.