Coexi

Stateful AI built for humans.

See features

We will never sell your data. We will never advertise. Safe by design.

Hero Placeholder

COEXI BENCHMARK RESULTS

4.79 ms of pipeline overhead

0.5% structural overhead · 100% recall on gate refusals · 0.0% false positives

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

PIPELINE OVERHEAD (MEAN)

4.79ms

p99: 6.80 ms

STRUCTURAL OVERHEAD

0.5%

of full turn E2E

FULL TURN E2E (HAIKU-4-5)

1065ms

95% CI: ±38 ms p99: 4310 ms

GATE PERFORMANCE

100% / 0.0%

recall / false positive rate

LATENCY PROFILE (MEAN)

Breakdown of a single turn | Latency (ms) – log scale

Cold start (init, import, model load)
//
2032.5 ms
Full turn E2E (haiku-4-5)
1065 ms
Pipeline overhead (everything except LLM)
4.79 ms
LOM warm (logic-over-model layer)
0.0031 ms
0.0010.010.11101001,00010,000

CONCURRENT LOAD (SESSIONS/SEC)

n = 10100,432
n = 5059,219
n = 10027,736

IDENTITY (CHROMADB)

Layer 2 mean / p9913.85 ms / 40.6 ms
Layer 3 mean / p9913.69 ms / 47.7 ms
Combined mean13.71 ms
Per-turn identity cost13.71 ms

CACHE (P99)

Read0.006 ms
Write0.490 ms

TOKEN THROUGHPUT

38.3 tok/s
p5: 8.5 tok/sp95: 68.7 tok/s

PROMPT CACHE

98.9%
cache read ratio1000 inference runs

MEMORY

Idle RSS83.0 MB
Heap alloc / session0.05 KB

TESTING

Full turn calls1000 real calls
Cold start p992262.6 ms
LOM p990.0046 ms
Samples1,500+
Deterministic accuracy100%
Cold path excluded for warm measurements · 1000 inference runs
STATEFUL AI RUNTIME

How it works

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.Stateful AI runtime with persistent identity, deterministic safety.

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 deterministically.

Identity that persists

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

0 inference overhead

4.79ms pipeline overhead. 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

COMING SOON

Nev

She's not your average saas-bot.