AI Chatbot & Virtual Assistant
Local AI Chat Solution – FastAPI · LangChain · Ollama (LLaMA 3)
In one sentence
A private, on-prem customer assistant that answers from your own documents, streams replies in real time, and keeps data inside your infrastructure.
Who is it for?
Teams that need a secure, company-specific assistant (support, sales, HR, IT) without sending data to third-party clouds.
Business Challenge → Solution
Challenge:
Customers and employees can't find answers fast; docs live in PDFs, emails, and wikis; public chatbots hallucinate and raise data-privacy concerns.
Solution:
A document-grounded AI assistant (RAG) that indexes your content and serves reliable, sourced answers via a lightweight web widget or internal portal.
Outcome:
Faster resolution, lower ticket volume, consistent answers, and full control over data.
Core Value Propositions
Grounded answers (RAG)
Pulls citations from your PDFs/pages before generating a response.
Local by design
Runs on your private server or VPC (Docker), no external data sharing.
Real-time streaming
Tokens appear instantly for a "typing" feel.
Multilingual
Auto-detects Hungarian/English (extendable).
Secure access
JWT-based auth, CORS allow-list, rate-limits, request validation.
Scalable
FAISS vector index + Redis caching; add more models or shards as you grow.
How It Works (At a Glance)
Zero-trust posture: everything runs behind Traefik/Nginx with TLS; only your domain(s) can call the API.
Ask
User submits a question in the chat widget
Retrieve
System finds relevant chunks from knowledge base (FAISS)
Generate
LLaMA 3 drafts an answer using retrieved context
Stream
Reply is streamed to UI with source citations
Learn
Optional conversation memory and feedback loop
Key Features at a Glance
Document ingestion
PDFs, markdown, HTML pages, etc.
Citations & confidence
Show sources; tune relevance thresholds.
Conversation memory
Opt-in history for more natural dialogues.
Widget for WordPress/Divi
Simple embed, brandable UI.
Ops-ready
Health checks, logs, basic metrics, graceful timeouts.
Admin tools
Index refresh, model/version pinning, allow/deny lists.
Integrations & Deployment
Backend
FastAPI with LangChain (RAG pipeline)
Model runtime
Ollama (LLaMA 3 family; GPU optional for speed)
Vectors
FAISS (fast semantic search)
Cache
Redis (sessions, rate limits)
Infra
Docker/Compose, Traefik TLS reverse proxy, Linux server
Frontend
Lightweight JS widget; easy drop-in for WordPress/Divi
Security & Compliance
- 🔒 TLS/HTTPS everywhere
- 🔒 JWT authentication, CORS allow-list
- 🔒 Rate limiting and abuse protection
- 🔒 Input validation (Pydantic)
- 🔒 No PII exfiltration: data stays local; logs are yours
- 🔒 Auditability: request/response logging with timestamps (configurable)
Typical Results
- ✓ 30–60% fewer repetitive tickets in the first weeks
- ✓ 2–5s average time-to-first-token on standard hardware
- ✓ Higher answer consistency vs. human-only triage
(Exact numbers depend on content quality and volume.)
Technology Stack (Enterprise-Ready)
Python (FastAPI) · LangChain · Ollama (LLaMA 3) · FAISS · Redis · Docker/Compose · Traefik/Nginx · Linux (Debian)
What We Deliver in an Implementation
- → Content audit → what to index, what to exclude
- → Secure deployment (Docker, TLS, CORS, JWT, rate limits)
- → Indexing & evaluation (RAG quality checks, thresholds)
- → Branding & embed (widget styles, welcome prompts)
- → Pilot & training (admin + editors)
- → Support & SLAs (updates, monitoring, improvements)
Frequently Asked Questions
Can we keep all data on-prem?
Yes. The system is designed to run locally or in your private cloud.
Does it hallucinate?
The RAG pipeline reduces hallucinations by requiring retrieved sources. Thresholds are tunable.
Can we use a GPU?
Recommended for lower latency; CPU-only works for lighter loads.
How do we add content?
Upload/point to approved sources; the indexer updates FAISS on schedule or on demand.
Does it support Hungarian?
Yes—auto language detection for HU/EN out of the box.
Want a tailored demo with your own documents?
See how it works with your actual content