Determa Determa Applied AI Systems
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Four builds, documented end to end.

Determa is new. The systems behind it are not. Four delivered builds — each with architecture, numbers and what failed — documented in full on renezander.com.

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Production self-hosted voice AI

GPU-backed self-hosted voice AI: local STT, LLM and TTS in EU infrastructure or the client's own VPC. Measured warm latencies, structured outcome writeback.

Architecture

EU infrastructure or the client's VPC
Caller
STTspeech to text
LLM
TTStext to speech
Outcome writebackstructured, to the CRM
Every stage runs on infrastructure the client controls; the outcome of each call is written back as structured data.

Enterprise PII redaction for SAP

Self-hosted German PII redactor for SAP prod→dev copies — free-text NOTES columns, unclassified Z-tables, OCR'd attachments. DSGVO-konform, runs on a single consumer GPU.

Architecture

SAP production copyNOTES, Z-tables, attachments
Client network, one GPU
PII redactorGerman, incl. OCR
SAP dev / testno personal data
Personal data is removed before the copy leaves production, on one consumer GPU inside the client's network.

AI revenue prioritization in HubSpot

HubSpot-native AI layer scoring every contact on ICP fit, ranking the pipeline by expected revenue, prescribing the next action with a written reasoning trace.

Architecture

Contacts
ICP fit score
Ranked pipelineby expected revenue
Next actionwith written reasoning
The layer runs inside HubSpot: each contact is scored, the pipeline is ranked by expected revenue, and the next action comes with its reasoning.

AI decision support for enterprise operations

Transformation-portfolio platform with AI-scored initiatives and capability-maturity radar — replaces steering-committee spreadsheets with continuous prioritization.