Coexi

Stateful AI built for humans.

We will never sell your data. We will never advertise.

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Coexi substrate runs at ~3ms per call
Deterministic accuracy on configured patterns

BENCHMARK RESULTS · Intel Ultra 9 285K · RTX 5090 · 128GB RAM · Windows 11

Host-native latency

~3 ms

Structural overhead

~0.2%

Pipeline overhead

2.18 ms

Configured accuracy

100%

Host-nativeLocal inferenceCloud inference

Cold path excluded. 300 iterations × 5 texts = 1500 samples. 30 inference runs. Accuracy reflects deterministic configured-pattern matching. Haiku is network-bound through OpenRouter.

LOM p95: 6ms
LOM p99: 8ms
LOM CV: 53%
Pipeline p95: 2.77ms
Pipeline p99: 3.09ms
Pipeline CV: 12.6%
tinyllama mean: 282.6ms
qwen3 mean: 1166.7ms
qwen3 CV: 1.6%
haiku-4-5 mean: 1614.2ms
Cache read p99: 0.017ms
Cache write p99: 0.703ms
False positive: 0 / 10
Configured accuracy: 100%
Haiku overhead: ~0.2%
STATEFUL AI RUNTIME

How it works

Every AI session starts from zero.Coexi adapts to how you think and builds a continuity model:A live representation of sentiment, pacing, and intent.
Every interaction builds on the last.Emotional intelligence interprets behavioral cues and adjusts dynamically.
Safe by design.

Emotional Intelligence

Interprets linguistic and behavioral cues in real time and responds dynamically.

Governed proactivity

No manipulation. No dependency engineering.
The user stays in control.

Lightweight runtime

Learns sentiment, pacing, and context without collecting or retaining personal data.

Real-time adaptation

Updates continuously as you interact.

Privacy-first design

Operates locally or through encrypted endpoints.
No background aggregation.

Always contextual

Retains patterns, never transcripts. Enough to stay aligned. Never enough to identify.

Deterministic safety

A real-time gate that enforces hard rules in ~3ms.

Identity that persists

Nev's personality, memory, and context stay consistent across interactions.

0 inference overhead

Sub-5ms per call. The substrate runs invisibly.

Sovereignty by design

Ten violation patterns blocked at the architecture level.
Dignity isn't a setting here.

"80,508 people told Anthropic what they want from AI. Continuity, dignity, and presence."

What 81,000 people want from AI ›

- Anthropic, March 2026

"Coexi offers a way of favoring continuity and coherence over present shock and calibration. It's an approach worth our attention."

- Douglas Rushkoff, Team Human

PATENTS PENDING · BENCHMARKED

Foundation | Stateful AI

The stateful runtime layer. Coexi is built on the C³ Model (Context Capture, Coherence, Continuity), a host-native architecture that maintains context across interactions without storing personal data.

Overlay | Persistent Identity

The adaptive personality layer interprets linguistic and behavioral cues in real time. Sentiment, pacing, and response adjust dynamically. Governance is enforced deterministically. 100% accuracy on configured patterns.

Research inspired by neuroscientist, Dr. Michael Hogan, University of Galway.

NOTE: "Presence Engine" has been rebranded / refiled as "Coexi" | May 2026

Download the Coexi Thesis

COMING SOON

Nev

She's not your average saas-bot.