
The Spike API is currently in private beta. Request access to get started.
The Vision
We believe AI should be more than a tool—it should be a presence. Not a simulacrum pretending to be human, but something new: an entity that perceives, understands, and responds with genuine awareness of the moment. Spike gives you the building blocks to create AI companions that exist fully in conversation—seeing the user’s expressions, hearing the nuance in their voice, speaking with authentic personality, and remembering what matters.The Pillars
Personality
Identity, not imitationDefine who your AI is—not just what it says, but how it thinks. System prompts, voice characteristics, visual appearance, and behavioral traits combine to create a coherent identity that users can genuinely connect with.
Knowledge
Grounded intelligenceGive your AI access to your domain expertise. Documents, websites, and real-time data sources become the foundation for informed responses—not hallucinations, but genuine understanding.
Memory
Relationships over sessionsEvery conversation builds on the last. Your AI remembers preferences, learns context, and develops a genuine understanding of each user over time. Not storage—relationship.
Presence
Here, now, with youYour AI sees facial expressions, detects emotions, and understands visual context. It responds not just to words, but to the full richness of human communication—fully present in each moment.
The Modalities
Voice
Natural speech synthesis and recognition for fluid conversation
Video
Expressive avatars that speak, emote, and maintain eye contact
Chat
Text-based interactions with full personality and memory
Games
Playful engagement through turn-based games with personality
The Flow
A user speaks. Your AI companion perceives—not just the words, but the furrowed brow, the hesitation, the smile breaking through. It draws on everything it knows: the personality you’ve crafted, the knowledge you’ve provided, the memories of this particular user. A response forms—not retrieved, but genuinely composed for this moment. It speaks with its own voice, its face animated with appropriate emotion. All of this happens in under a second. The conversation feels natural because it is natural—two entities present with each other, communicating through the full bandwidth of human expression.See how it works
Explore the pipeline that makes real-time AI conversation possible—from perception through response.
Start Building
Quick Start
Get your first AI companion running in minutes
Authentication
Set up API keys and secure your integration
API Reference
Complete endpoint documentation
Enterprise
Need dedicated infrastructure, custom models, or advanced compliance? Contact our enterprise team for solutions tailored to your scale.

