Private LLM & RAG Solutions

Next-Gen AI Systems Built on Your Infrastructure with Total Privacy & Sovereignty

Modern AI Architecture Patterns

  • Hybrid Retrieval & Reranking

    Standard vector search is not enough. We combine semantic vector databases (Qdrant, pgvector) with classic BM25 keyword search. We then apply state-of-the-art Cross-Encoder Rerankers (Cohere, BGE) to ensure the LLM receives the absolute most relevant context, virtually eliminating hallucinations.

  • LLM Observability & Tracing

    No black boxes. We integrate complete tracing pipelines (Langfuse, Arize Phoenix) that log every step of a prompt, monitor token usage and costs, version prompts dynamically, and track user feedback to guarantee production reliability and continuous improvement.

  • Autonomous LLM Agents

    Go beyond static QA. We build smart multi-agent systems using LangGraph or AutoGen. These agents can reason (ReAct pattern), use custom tools, execute SQL queries securely, call APIs, and collaborate to automate complex end-to-end business workflows.

  • Private LLM & Local Inference

    No API locks, no data leaks. We deploy open-source models (Llama 3.1, Mistral, Qwen) using Ollama, vLLM, or TGI directly on your secure dedicated servers. Your data never leaves your network, guaranteeing full compliance with GDPR, KNF, and enterprise security policies.

SaaS AI APIs vs. Self-Hosted Private AI

  • SaaS APIs (OpenAI, Claude)

    • Your proprietary data and client queries sent to external third parties
    • Unpredictable, high per-token pricing that scales with usage
    • No SLA on API latency or sudden deprecation of models
    • Limited custom fine-tuning and zero access to base model weights
    • Difficult to comply with strict GDPR, HIPAA, or financial regulations
  • Private & Self-Hosted AI

    • 100% data sovereignty — all computation and documents stay local
    • Predictable flat monthly infrastructure costs regardless of token volume
    • Complete control over model selection, updates, and fine-tuning
    • Optimized high-throughput inference (vLLM, Ollama) on private hardware
    • Fully compliant with GDPR, SOC2, and strict national regulations

Enterprise-Grade AI Tech Stack

  • Models & Inference

    Ollama, vLLM, Hugging Face, Llama 3.1 & 3.2, Mistral, Qwen 2.5

  • Orchestration

    LangChain, LlamaIndex, LangGraph, Python / Node.js

  • Vector Databases

    Qdrant, Milvus, pgvector (PostgreSQL), Chroma

  • Observability

    Langfuse, Arize Phoenix, OpenTelemetry, Prometheus / Grafana

Tailored Cooperation Models

  • Model A

    Custom Development & Handover

    • Deploy on AWS, Azure, GCP, or your bare-metal servers
    • Complete setup of vector DBs, inference, and Langfuse tracing
    • Full IP rights transfer & comprehensive code documentation
    • 3 months of hand-holding support and performance tuning
  • Model B

    Managed Private AI Platform

    • Dedicated GPU-enabled nodes with 99.9% uptime SLA
    • Continuous performance monitoring, prompt auditing & security scans
    • Automatic local fine-tuning cycles with newly indexed data
    • Regular open-source model updates (e.g. migrating to newer Llama/Mistral versions)

Our Structured Delivery Process

  1. 01

    Discovery & Design

    We analyze your document structures, define key use cases, select the optimal models, and design the safe integration architecture.

  2. 02

    Proof of Concept

    We build a working prototype in 2-3 weeks to validate semantic retrieval accuracy and test raw response quality on your actual data.

  3. 03

    Production Launch

    We implement Hybrid Retrieval, deploy LLM Observability with Langfuse, set up security RBAC, and integrate with your tools/APIs.

  4. 04

    Optimization & Scaling

    We optimize GPU throughput (vLLM), continuous prompt tracking and user feedback loop tuning to keep accuracy climbing.

Empower Your Organization with Custom LLMs

Schedule a free technical consultation. We will discuss your proprietary data formats, infrastructure requirements, and target use cases to outline a concrete PoC roadmap.

Write to us

info@pceuropa.net