Production AI systems. Real numbers, real customers.
Case studies from live deployments — voice agents taking calls, chatbots deflecting tickets, agents reactivating customers, enterprise RAG over permissioned document estates. Every metric below is from production traffic, not a demo environment. NDAs kept where required; architecture shared openly.
Milina — AI voice agent for a NYC restaurant at $0.09 per call
50+ calls a weekend night, bilingual (English + Spanish), sub-700ms response latency. LiveKit + Deepgram + GPT-4o-mini + Cartesia. Callers routinely don't realize they're talking to AI.
Swiss German voicemail → structured orders for a food wholesaler
Three-model ensemble (Whisper Turbo + Gemini 2.5 Pro + FHNW Swiss German) with a Claude 4.7 Opus arbiter. Killed Whisper's looping-hallucination failure mode on 796 telephone voicemails. 99 of 100 previously-unusable files recovered.
CleverAnswerAI — HIPAA dental receptionist, 20+ offices
Self-hosted LiveKit on a BAA-covered stack, live for a year. 100% answer rate. 28% more new-patient bookings. Direct integration with Dentrix, Open Dental, Curve, Eaglesoft.
iGaming QA — 66% to 91% with schema-guided reasoning
Took a Tier-1 operator's QA accuracy from 66% to 91% and coverage from 2% to 25%. Rubric-as-code, 1,200-case eval harness, two-model ensemble on regulatory criteria.
Dry cleaning chain — AI reactivation agent, 3.5x ROI
192K customer × category intervals scored daily. LangGraph agent picks channel, message, offer, and timing per customer. 18.7% reactivation across 23 service categories, against a 10% held-out control.
ConvoTune — AI call transcription & scoring for a 40-seat sales org
3,000+ calls scored per month against a 30-point playbook. 89% agreement with human reviewers. Real-time coaching prompts at <300ms. Entire pipeline in client AWS.
Corporate RAG — ~500 internal users, permission-scoped
A UK building repair, maintenance and refurbishment group (under NDA). Permission-scoped RAG over SharePoint with AWS Kendra + Bedrock + OpenFGA + Keycloak. Document search collapsed from ~15 minutes to seconds (~150× faster).
German technical RAG — when the framework wasn't enough
Two German tenants (under NDA): a concrete-products manufacturer and a regional municipal water utility. We deleted the off-the-shelf RAG framework and wrote a single-orchestrator pipeline (rag2). DIN / EN / DWA norms preserved per chunk.
Earlier research and data-platform case studies.
Before the commercial RAG work landed, we ran an open RAG benchmark write-up and built data stacks on dbt, Snowflake, and Arabic-optimized analytics platforms. That work still pays bills for the clients — and we still do selective analytics engineering for existing AI clients — but it's no longer our primary practice.
Older write-ups kept online for reference: Enterprise RAG Challenge winner architecture, fitness-clubs analytics, medical aesthetics data platform. These pages remain reachable but aren't featured in our current navigation.
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