Simli
- Company typePrivate
- Founded2021
- HeadquartersSan Francisco, United States
- Headcount1–10
- GTM typeB2B
- OfferingSoftware
Simli firmographics
Firmographics- Name
- Simli
- Legal name
- Simli AS
- Website
- https://simli.com
- Company type
- Private
- Founded year
- 2021
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Ownership category
- akta.pro rank
Simli industry classification
Industry- Product category
- AI Avatar API
- NAICS
- Postproduction Services and Other Motion Picture and Video Industries (51219), Motion Picture and Video Industries (5121)
- SIC
- Services-Prepackaged Software (7372)
- akta.pro primary industry
- Voice Cloning, Dubbing & Audio Generative Media (HDAAAFAK)
- akta.pro secondary industries
- Conversational AI Platforms (chat/voice bots, orchestration) (HDAAAFAC), Voice Assistants & Voice UI (VUI) (HDAAAFAD), Content-Aware/AI Media Processing (Per-Title Encode, Scene Detection) (MPAHAHAH)
Keywords
Where Simli is headquartered
LocationHeadquarters
- HQ city
- San Francisco
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Simli business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Technology or R&D, Personnel, Infrastructure, Marketing or Sales, Operations
Revenue model
- API Usage-based: Usage measured in 'Minutes Spent' (Tokens). Each API call generating a video stream records time in minutes and aggregates to the account. Free demos do not consume tokens. Free trial users receive credits for testing.
- Subscription Plans: Monthly subscription plans with allocated token limits based on plan tier. Automatic monthly renewal. Volume discounts available for paid plans.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Freemium | Monthly | Free Plan |
| Usage-based | Monthly | Paid Plans |
Go-to-market motion1 record
Distribution channels2 records
Marketing channels5 records
Simli product offering
Product offeringCore offering
Simli provides a real-time speech-to-video API that transforms audio input into lip-synced talking head video avatars with realistic facial expressions at sub-300ms latency. The platform offers JavaScript and Python SDKs, WebRTC and REST API access, and pre-built integrations with conversational AI infrastructure (LiveKit, Pipecat) and AI services (OpenAI, ElevenLabs, Deepgram, Vapi), enabling developers to embed realistic video avatars into conversational AI applications such as sales assistants, customer service bots, language training, and coaching platforms.
Product overview
Simli is an AI company offering a speech-to-video API that transforms audio into lip-synced talking head video avatars with realistic facial expressions and low latency (<300ms). The product portfolio includes the core Simli Speech-to-Video API, JavaScript SDK for browser-based WebRTC integration, Python SDK for server-side applications, Avatar Creation Tool for custom face upload, Avatar Library with preset faces, WebRTC API for custom client implementation, and REST API endpoints for session and avatar management. Integrations are available via LiveKit (recommended), Pipecat, and various AI service providers (OpenAI, ElevenLabs, Deepgram, Vapi, Cartesia). Starter repositories demonstrate integration with major AI agent platforms.
Differentiator
Problem solved
Functional benefit
Products and services
- Simli Speech-to-Video API Core API service that transforms audio input into lip-synced talking head video with realistic facial expressions at sub-300ms latency. Integrates with multiple LLM, STT, and TTS providers and is targeted at developers building conversational AI applications such as sales assistants, customer-service bots, mock interview tools, language learning, and coaching platforms.
- Simli JavaScript SDK (simli-client) Browser-based WebRTC SDK distributed via npm as simli-client, allowing web developers to integrate real-time audio and video avatar streaming into web applications with P2P and LiveKit transport support.
- Simli Python SDK (simli-ai) Python SDK distributed via pip as simli-ai that enables server-side and out-of-browser integration of Simli's real-time audio and video avatar streaming, including file stream saving and custom programmatic pipelines.
- Simli WebRTC API Custom WebRTC client API that gives developers full control over their tech stack, transforming audio from any source into talking head avatar video with low latency via WebRTC transport.
- Simli REST API REST API exposing endpoints for session token generation, ICE server configuration, avatar creation and management, video generation, HLS segment retrieval, MP4 export, Trinity Face generation, LiveKit agent sessions, session history, and active session counts.
Quantifiable outcome
- Speech-to-video latency under 300ms
Companies that use Simli
Customer profileSegments2 records
Ideal customer profiles2 records
Simli technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration7 records
AI capability4 records
Feature4 records
Simli partnerships and signals
Strategic signalPartnerships
13 partnerships are on record, tiered core and supporting.
- OpenAIcoreLLM and Voice API provider. Processes user content for conversational AI interactions. Data processing agreement in place for international transfers.
- ElevenLabscoreText-to-Speech and Voice API provider. Enables realistic voice synthesis for avatar interactions.
- GroqcoreLLM provider for fast inference. Processes user content for conversational responses.
- DeepgramcoreSpeech-to-Text API provider. Converts audio input to text for LLM processing.
- Microsoft AzuresupportingAzure speech services for voice technology. No international transfers as processing occurs within EEA.
- DailycoreStreaming and Voice API provider for real-time audio/video streaming infrastructure.
- Google Ireland Ltd.supportingCloud services provider for infrastructure. No international transfers as services operate within EEA.
- PlayHTsupportingVoice technology provider for text-to-speech capabilities.
- ReTellsupportingVoice API provider for speech synthesis.
- CartesiasupportingSpeech API provider for voice synthesis.
- MetacoreLLM provider for conversational AI capabilities.
- LiveKitcoreReal-time communication platform integration. Recommended method for deploying Simli agents with voice and video chat capabilities.
- PipecatcoreOpen source Python framework for building voice and multimodal AI bots. Recommended integration for Simli agents.
Scale indicators1 record
Recent moves5 records
Expansion highlights5 records
Simli competitors and assessment
Company assessmentMarket position
Competitive moat4 records
Key risks6 records
Key highlights6 records
Customer concentration
Simli social profiles
Digital presenceSimli compliance and trust
Trust signalCompliance2 records
Simli financial estimates
Financial estimateRevenue estimate
Valuation estimate
Simli leadership team
Management profileNumber of profiles
Simli funding detail
Funding detailFunding overview
Funding rounds2 records
Investors1 record
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Simli M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Simli
What does Simli do?
Simli provides a real-time speech-to-video API that transforms audio input into lip-synced talking head video avatars with realistic facial expressions at sub-300ms latency. The platform offers JavaScript and Python SDKs, WebRTC and REST API access, and pre-built integrations with conversational AI infrastructure (LiveKit, Pipecat) and AI services (OpenAI, ElevenLabs, Deepgram, Vapi), enabling developers to embed realistic video avatars into conversational AI applications such as sales assistants, customer service bots, language training, and coaching platforms.
Is Simli a public or private company?
Simli is a private company. It is classified as venture growth investor backed and is currently operating.
When was Simli founded?
Simli was founded in 2021. It employs 1 to 10 people.
Where is Simli based?
Simli is headquartered in San Francisco, United States, in the North America region.
How does Simli make money?
Two revenue lines are on record. API Usage-based is the primary driver. The others are subscription Plans.
Does Simli have an API?
Yes. Simli's speech-to-video API transforms audio into lip-synced talking head video with realistic motions and low latency (<300ms). Available via REST API at https://api.simli.ai. Supports P2P (WebRTC) and LiveKit transport modes. Provides session token generation, ICE server configuration for NAT traversal, avatar creation, face management, static video generation, HLS segment retrieval, MP4 export, Trinity Face generation, livekit agents session, session history, and active session count endpoints. SDKs available in JavaScript (npm package: simli-client) and Python (pip package: simli-ai). Developer documentation is at docs.simli.com.
What industry is Simli in?
Simli's product category is AI Avatar API. Its primary akta.pro industry code is HDAAAFAK, Voice Cloning, Dubbing & Audio Generative Media, with a secondary code of HDAAAFAC, Conversational AI Platforms (chat/voice bots, orchestration). Its NAICS code is 51219 and its SIC code is 7372.