LemonSlice
Create a live video avatar from one photo, then embed it in a product through the API and LiveKit.
About LemonSlice
LemonSlice adds interactive video avatars to a product or website. Starting with one photo, it creates a character that can listen, speak, and react during a live conversation. The model handles expressive details including hand gestures, emotions, full-body movement, clothing changes, objects, non-human characters, and photorealistic output. Developers work through an API and LiveKit; the examples cover Next.js, Python, Node.js, video meetings, multiple avatars, and tool calling. Self-serve subscriptions include LemonSlice 2.1, API access, unlimited avatars, image-to-avatar creation, fast responses, 30-minute calls, and support for an external LLM or voice model. Enterprise expands this with actions, emotions, 1000+ concurrency, Lite, Pro, and Flash models, team accounts, calls up to 24 hours, data-residency choices, optional zero data retention, and dedicated support. There is a free tier, four paid self-serve levels, and a custom enterprise plan. Usage can fall as low as $0.039 per minute. LemonSlice fits products where a live, visible character adds something a text assistant cannot. The tradeoffs are concrete: usage costs rise with traffic, self-serve calls stop at 30 minutes, and production deployment still requires API and LiveKit engineering.
Best for
Best use cases
A customer opens an FAQ flow and receives an answer from a speaking video avatar backed by a knowledge base.
A virtual character joins a Zoom, Google Meet, Microsoft Teams, or Webex call as an interactive participant.
An application turns one photo into a live character that listens and responds during an in-product session.
Compare before choosing
Compared with a text chatbot, LemonSlice adds a real-time visual character but introduces video usage cost and integration work.
Self-serve plans suit calls up to 30 minutes, while enterprise is the route for 24-hour calls and 1000+ concurrency.
Bringing an external LLM or voice model gives teams more control than a closed conversational stack, but adds dependencies to operate.
Features
Embedded video assistants
Add a real-time speaking avatar to a website or application through the LemonSlice API and LiveKit.
Video meeting participants
Send an avatar into Zoom, Google Meet, Microsoft Teams, or Webex through the documented example workflow.
Interactive support guidance
Answer FAQ or compliance questions through a video character connected to a team knowledge base.
Pros
- One-photo avatar creation reduces the asset preparation needed for a working video character.
- API access, LiveKit examples, and support for external LLM or voice models provide flexible integration paths.
- Enterprise options cover 1000+ concurrency, 24-hour calls, data residency, and optional zero data retention.
Cons
- Self-serve calls are capped at 30 minutes, so longer continuous sessions require an enterprise agreement.
- Video usage can cost as little as $0.039 per minute, which still creates a variable cost that grows with traffic.
- Embedding the avatar requires API and LiveKit development work rather than a fully no-code deployment.
Pricing Plans
Starter
- LemonSlice 2.1 access
- API access
- Unlimited avatars
- Image-to-avatar
- Calls up to 30 minutes
- Bring your own LLM or voice model
Creator
- LemonSlice 2.1 access
- API access
- Unlimited avatars
- Image-to-avatar
- Calls up to 30 minutes
- Bring your own LLM or voice model
Pro
- LemonSlice 2.1 access
- API access
- Unlimited avatars
- Image-to-avatar
- Calls up to 30 minutes
- Bring your own LLM or voice model
Scale
- LemonSlice 2.1 access
- API access
- Unlimited avatars
- Image-to-avatar
- Calls up to 30 minutes
- Bring your own LLM or voice model
Enterprise
- Everything in self-serve plans
- Actions and emotions
- 1000+ concurrency
- Lite, Pro, and Flash model access
- Team accounts
- Calls up to 24 hours
- Optional zero data retention
- Data residency options
- Dedicated support
* Pricing information is for reference only. Please refer to the latest announcement on LemonSlice's official website.