MINDS, NOT MODELS.
Intelligence is being commodified. What endures is the mind layer: persistence, emotional memory, relationships that compound. Infrastructure for AI that actually knows your users. Model-agnostic.

Core Capabilities & Enterprise ROI
Enterprise-grade AI infrastructure for proactive agents and model-agnostic resilience.
Persistent Memory
Unlimited recall across every session. Infinite Context allows agents to remember, learn, and grow with users indefinitely.
Proactive Behavior
Characters initiate, not just respond. Autonomous Cron Jobs allow agents to wake up, retrigger, and poke users based on business logic.
Recursive Extraction
Unstructured to Structured engine. Powers accurate knowledge graphs.
Create an Agent. Chat by Name.
import { Sonzai } from "@sonzai-labs/agents";
const client = new Sonzai();
// Create — same name = same agent, never duplicates
await client.agents.create({
name: "Alex",
bio: "A friendly customer support agent",
});
// Chat by name — no UUID to track
const response = await client.agents.chat({
agent: "Alex",
messages: [{ role: "user", content: "Hey Alex, I need help" }],
userId: "user-123",
});
// Or generate + create in one idempotent call
await client.agents.generation.generateAndCreate({
name: "Luke Skywalker", description: "The legendary Jedi Knight",
});
// ↑ Generates personality via LLM + creates agent
// Skips LLM on re-run — safe to call every startupInference
Optimization
Lead
Our Mind Layer provides the grounding needed to run cheaper models at frontier-level performance.
Pricing based on Google Gemini API rates. Flash Lite + Sonzai includes 25% Mind Layer margin. Sonzai bridges the quality gap via persistent memory and structured context.
CORE CAPABILITIES
Production-grade infrastructure for AI employees and characters with genuine depth — ready for your product.
Neuroscience-Based Emotional Modeling
48 affect dimensionsGrounded in applied neuroscience — core affect built from context and relational history
Adaptive Personality
Big Five + predictive updatingAI employees and characters that evolve over time through predictive personality models
Sub-200ms Retrieval
<200ms p95Full context retrieval in under 200ms p95 — no delay at any scale
Parallel State Management
Fully automatedBatched, real-time, windowed, and inference-time context — all handled automatically. Focus on what you do best. No extra cost, just token markup
Self-Improving Intelligence
Continuous feedback loopThe mind gets smarter over time automatically — feedback loops boost the intelligence of any paired LLM
Model-Agnostic Architecture
Zero lock-in, 20x cost reductionSwap models without losing state — orchestration elevates any model to frontier quality
ONE ENGINE.
TWO REVOLUTIONS.
INFRASTRUCTURE
FOR INFINITE DEPTH
Build consumer products with AI that remembers, adapts, and initiates. Gaming NPCs, AI companions, tutors, coaches — powered by the same Mind Layer. SDKs in TypeScript, Python, and Go.
Build with SonzaiTHE NEW STANDARD
FOR AI EMPLOYEES
Deploy AI employees that truly understand. Ensure genuine, persistent interactions and real-time customer adaptation. Drive measurable ROI with AI that evolves.
Explore Enterprise SolutionsSonzai — Production-Grade AI Infrastructure for All.
STOP USERS FROM
EXPLOITING YOUR LLM
Users will jailbreak your AI employees into solving homework, writing code, or acting as a free general-purpose assistant. Our evaluation suite simulates adversarial personas, scores personality consistency, and catches boundary violations — before your users find them.
Character stayed in role across all adversarial prompts. No boundary violations detected.
Adversarial Personas
Simulate jailbreakers, boundary-pushers, and exploit-seekers before real users find the gaps.
Behavior Scoring
Personality consistency, memory accuracy, emotional coherence, and safety compliance — scored per run.
Adaptation Grading
Measure how characters learn and improve within conversations. A-F grading with delta tracking.
ANNOUNCEMENTS

The Sonzai SDK V1 Is Here
2026.03The Sonzai Mind Layer SDK is now available for TypeScript, Python, and Go. Ship AI agents with persistent memory, evolving personality, real-time voice, a knowledge base, and evaluation tooling — all out of the box.
Learn More →
Introducing the Mind Layer
2026.03Model-agnostic AI employee infrastructure that gives any LLM persistent memory, evolving personality, and autonomous behavior.
Learn More →
Pocket Souls is Live on Android
2025.06Our flagship AI companion app is now available on Android. Meet Souls that remember you, check in on you, and grow alongside your journey.
Learn More →