The AI industry has spent years building world models — systems that simulate environments. NVIDIA simulates physics. DeepMind simulates game worlds. OpenAI's Sora simulates cinematic scenes. But all of these share a blind spot: they treat humans as objects in the environment, not as the center of interaction.
Three layers of a social world model
Catnip proposes social world models as a three-layer architecture. The Perception layer reads user emotion and state from text, voice, and video input. The Simulation layer predicts social behavior dynamics — how a conversation might unfold, what emotional response is appropriate. The Rendering layer generates real-time audio-visual output that manifests the simulated social behavior.
MaineCoon is the breakthrough at the Rendering layer — the first model capable of producing synchronized audio and video in real time, optimized specifically for social-interactive applications.
Why rendering first?
Catnip chose the hardest layer as the entry point for two reasons. First, rendering is the system's output — without real-time generation capability, perception and simulation have no way to reach the user. Second, the industry lacked any model that could stream synchronized audio-visual content at social-interaction quality and speed.
By solving rendering first, Catnip creates the foundation that future perception and simulation layers can build upon.
Beyond half-duplex interaction
Today's AI interaction is half-duplex: you speak, then the AI responds. Even voice assistants follow this turn-taking pattern. Social world models aim for full-duplex interaction — the AI generates continuously while simultaneously perceiving user feedback through multiple modalities.
MaineCoon's streaming architecture is a step toward this: the model generates without stopping, and user input can be injected at any point to influence the ongoing stream.
What this means for platforms
The implication for social platforms is significant. If AI can be present with users in real time — not as a tool they invoke, but as a participant that observes, simulates, and responds — the foundation of social media interaction changes fundamentally.
Catnip is building toward an interactive content platform where users experience real-time AI presence at scale. MaineCoon is the generative engine that makes this possible.