Lemon Slice
Lemon Slice builds a real-time interactive AI video avatar platform powered by its proprietary 20B-parameter LemonSlice-2 text-to-video model, serving developers and enterprises building conversational video agents via API, hosted pipelines, and embeddable widgets.
- Company typePrivate
- Founded2024
- HeadquartersSan Francisco, United States
- Headcount1–10
- GTM typeB2B
- OfferingSoftware
What Lemon Slice does
Lemon Slice (legal entity: Infinity AI, Inc.) is a San Francisco-based AI company that builds real-time interactive video avatars. Its flagship product, LemonSlice-2, is a 20 billion parameter causal text-to-video model that generates interactive avatar video from a single input image at 20 frames per second on a single GPU. The platform exposes these avatars through multiple surfaces: a REST API for self-managed sessions, a Hosted Pipeline with built-in Daily room integration, a no-code Widget Embed for Squarespace, Shopify, Wix, and Next.js websites, and a Pipecat transport layer for AI voice/video agent developers. The company targets use cases including customer support avatars, lead qualification agents, podcast hosts, and entertainment characters, with marketing imagery referencing Geico, PostHog, and consumer brand examples.
The company monetizes via a tiered SaaS subscription (Starter $7, Creator $33, Professional $83, Scale $200 per month annual billing) plus an Enterprise custom tier, with usage-based overage pricing at $0.19-$0.22 per minute or per credit and unlimited custom avatars on most tiers. Go-to-market mixes self-serve signup (Google, Discord, email authentication) with a demo request flow aimed at larger customers. Distribution is amplified through native integrations with LiveKit, Pipecat, Daily, and Agora, embedding Lemon Slice inside the standard real-time communication stacks used by AI agent builders. The company raised a $10.5 million seed round in December 2025 co-led by Matrix and Y Combinator, with participation from Mantis Venture Capital, Soma Capital, The Chainsmokers, and angels Emmett Shear (Twitch Co-founder/CEO) and Arash Ferdowsi (Dropbox Co-founder/CTO). The founding team consists of CEO and co-founder Lina Colucci alongside co-founders Andrew Weitz and Sidney Primas, operating with a 1-10 person headcount.
Note: the upstream firmographics layer described Lemon Slice as a translation and localization services provider; this contradicts the detailed product, pricing, API, and website data, which uniformly describe a real-time AI video avatar platform. The description above is grounded in the detailed product and website evidence.
Lemon Slice firmographics
Firmographics- Name
- Lemon Slice
- Legal name
- Infinity AI, Inc.
- Website
- https://lemonslice.com
- Company type
- Private
- Founded year
- 2024
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Lemon Slice builds a real-time interactive AI video avatar platform powered by its proprietary 20B-parameter LemonSlice-2 text-to-video model, serving developers and enterprises building conversational video agents via API, hosted pipelines, and embeddable widgets.
- Ownership category
- akta.pro rank
Lemon Slice industry classification
Industry- Product category
- AI Video Avatar Platform
- NAICS
- Motion Picture and Video Industries (5121), Other Motion Picture and Video Industries (512199)
- SIC
- Services-Motion Picture & Video Tape Production (7812)
- akta.pro primary industry
- AI Application Enablement Platforms (Copilot/Agent Frameworks, SDKs) (HDAEANAJ)
- akta.pro secondary industries
- AI Integration & Orchestration Platforms (Connectors, Workflow, iPaaS for AI) (HDAEANAI), Animation Pipeline, Asset & Render Services (MPADACAM)
Keywords
Where Lemon Slice is headquartered
LocationHeadquarters
- HQ city
- San Francisco
- HQ country
- United States
- HQ region
- North America
Markets served
Lemon Slice business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Technology or R&D, Infrastructure, Personnel, Marketing or Sales, Operations
Lemon Slice product offering
Product offeringCore offering
Lemon Slice operates a real-time interactive video avatar platform powered by its proprietary LemonSlice-2 text-to-video model (20 billion parameters, 20 FPS on a single GPU). It enables businesses and developers to generate AI-driven talking avatars from a single image, deploy them via API, hosted pipeline, or no-code embeddable widgets, and integrate with real-time communication stacks such as LiveKit, Pipecat, Daily, and Agora.
Product overview
Lemon Slice offers a unified real-time interactive video avatar platform centered on its proprietary LemonSlice-2 text-to-video model. The portfolio consists of the core LemonSlice platform providing avatar generation capabilities, the flagship LemonSlice-2 model (20B parameters, 20 FPS on single GPU), an embeddable Widget for no-code implementation, a Hosted Pipeline option for managed infrastructure, and LemonSliceTransport for Pipecat integration. Users can access avatars via direct API, hosted sessions, or embeddable widgets across web platforms.
Differentiator
Problem solved
Functional benefit
Products and services
- LemonSlice Platform Real-time interactive video avatar platform that turns any image into an interactive AI video call, offered as a subscription product with plans ranging from Starter to Enterprise.
- LemonSlice-2 Model Flagship 20 billion parameter causal text-to-video model operating at 20 FPS on a single GPU, powering real-time avatar generation with natural facial expressions and body movements.
- LemonSlice API REST API for creating and managing real-time interactive video avatar sessions, with endpoints for self-managed sessions, session retrieval, session control, and meeting platform integrations.
- Hosted Pipeline Managed infrastructure offering for avatar sessions with built-in Daily room integration, removing the need for self-hosted deployment of the video pipeline.
- Widget Embed No-code embeddable widget that lets websites add interactive LemonSlice avatars without custom development, with guides for Squarespace, Shopify, Wix, and Next.js platforms.
Companies that use Lemon Slice
Customer profileIdeal customer profiles2 records
Lemon Slice technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration4 records
AI capability7 records
Lemon Slice partnerships and signals
Strategic signalRecent moves6 records
Expansion highlights6 records
Lemon Slice competitors and assessment
Company assessmentDirect peers
- HeyGen: HeyGen provides AI avatar video generation platform with enterprise and self-serve tiers, similar target customers (marketing, sales, support), and a comparable pricing/credit structure. Closest scaled direct competitor.
- Colossyan: Colossyan offers AI avatar video generation primarily for enterprise training and learning content. Competes in the same broader AI avatar category with overlapping enterprise use cases.
- D-ID: D-ID provides AI-powered digital humans and talking avatar APIs for customer experience, marketing, and conversational AI. Directly comparable API/SDK-based avatar offering.
- Tavus: Tavus offers AI-generated personalized and real-time conversational video, with a developer API and integrations similar to LemonSlice. Most direct comparable on product (real-time AI video avatars) and business model (API + enterprise).
- Synthesia: Synthesia is an enterprise-grade AI video avatar platform for corporate training, communications, and marketing. Competes directly with LemonSlice in the AI avatar category, with significantly larger scale and enterprise footprint.
- Hour One: Hour One develops realistic AI video avatars for enterprise communications and content, with API and self-serve products. Operates in the same real-time / scripted avatar category as LemonSlice.
Broad incumbents
- Runway: Runway is a broader generative video AI platform with foundation model capabilities. Not a direct avatar competitor but a broad incumbent in generative video that could expand into LemonSlice's niche.
Emerging players
- Soul Machines: Soul Machines builds autonomous digital people / interactive AI avatars for enterprise customer engagement. Overlaps with LemonSlice on real-time interactive avatar use cases but with a more CG-rendered, persona-driven approach.
- Akool: Akool offers AI avatar and video generation APIs for marketing and conversational experiences, with a similar developer-and-enterprise GTM motion. Comparable as an emerging direct alternative.
Others
- ElevenLabs: ElevenLabs is a leading AI voice platform integrated into LemonSlice's stack (per LemonSlice docs mentioning any voice model or LLM). Adjacent/complementary rather than competitive — voice layer that powers LemonSlice avatars.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights6 records
Customer concentration
Lemon Slice social profiles
Digital presenceLemon Slice financial estimates
Financial estimateRevenue estimate
Valuation estimate
Lemon Slice leadership team
Management profileNumber of profiles
Profiles3 records
Lemon Slice funding detail
Funding detailFunding overview
Funding rounds1 record
Investors5 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Lemon Slice 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 Lemon Slice
What does Lemon Slice do?
Lemon Slice operates a real-time interactive video avatar platform powered by its proprietary LemonSlice-2 text-to-video model (20 billion parameters, 20 FPS on a single GPU). It enables businesses and developers to generate AI-driven talking avatars from a single image, deploy them via API, hosted pipeline, or no-code embeddable widgets, and integrate with real-time communication stacks such as LiveKit, Pipecat, Daily, and Agora.
Is Lemon Slice a public or private company?
Lemon Slice is a private company. It is classified as venture growth investor backed and is currently operating.
When was Lemon Slice founded?
Lemon Slice was founded in 2024. It employs 1 to 10 people.
Where is Lemon Slice based?
Lemon Slice is headquartered in San Francisco, United States, in the North America region.
Who are Lemon Slice's main competitors?
Direct peers on record are HeyGen, Colossyan, D-ID, Tavus, Synthesia and Hour One. Runway is listed as a broad incumbent. Emerging players are Soul Machines and Akool. ElevenLabs is listed as an others.
Does Lemon Slice have an API?
Yes. REST API for creating and managing real-time interactive video avatar sessions. Supports endpoints for creating self-managed sessions, retrieving session information, controlling sessions, and managing meeting platform integrations. Authenticated via X-API-Key header. Developer documentation is at lemonslice.com/docs.
What industry is Lemon Slice in?
Lemon Slice's product category is AI Video Avatar Platform. Its primary akta.pro industry code is HDAEANAJ, AI Application Enablement Platforms (Copilot/Agent Frameworks, SDKs), with a secondary code of HDAEANAI, AI Integration & Orchestration Platforms (Connectors, Workflow, iPaaS for AI). Its NAICS code is 5121 and its SIC code is 7812.