GDPR-Compliant Custom LLM Fine-Tuning for European Companies
AI Tuning is a boutique AI consultancy based in Varna, Bulgaria. We design, fine-tune and deploy private LLMs and GDPR-compliant AI systems for European companies that cannot send sensitive data to US SaaS APIs. Our focus: practical use cases in legal, customer support, fintech, healthcare and public sector — built on open-source models hosted fully in Europe.
- 93% of DACH companies report privacy concerns with US AI APIs.
- 78% see poor German performance with default models.
- €3,900–€12,000 one-time fine-tuning vs. €10k+/month API costs.
Why AI Tuning Exists
AI Tuning was created for European organisations that want the productivity benefits of large language models but cannot accept black-box, US-hosted APIs. Instead of “magic ChatGPT integrations”, we focus on auditable private LLMs, clear data flows and infrastructure you or your IT / legal teams can fully control.
Our typical clients are legal teams, customer support leaders and founders of mid-sized companies who need multilingual AI assistants that understand their documents, knowledge base and processes — in German, English and other European languages — and run entirely on EU-based AI infrastructure.
How We Work With You
Our projects are small, focused and measurable. You always know what you get, what it costs and how we evaluate the model before it touches production. No vague “AI package”, no endless workshops — just a clear path from first idea to a working private LLM that your team can safely rely on.
Privacy First, Then Performance
We start from regulatory and data constraints, then optimise for accuracy and latency.
- GDPR and data residency are baked into architecture from day one.
- We never send your data to US-hosted SaaS APIs during fine-tuning.
- Models run in EU data centres or on-prem, under your control.
Small, Focused Use Cases
We prefer one or two high-value workflows over “AI everywhere”.
- Clear, narrow use cases: legal Q&A, contract review support, internal policy search, etc.
- Measurable success metrics agreed before any training starts.
- Iterative improvements once the first version proves its value.
Transparent Fixed Pricing
You see the budget up front — no hourly surprises.
- Fixed one-time pricing for fine-tuning and evaluation.
- Predictable monthly fees if you choose managed hosting.
- Refund / re-scope if agreed benchmarks cannot be met.
Who Is Behind AI Tuning?
AI Tuning is operated by a small, technical founder-led team in Varna, Bulgaria. We combine background in infrastructure, automation and digital marketing with hands-on experience running GPU servers, Docker-based AI stacks and open-source LLMs. Most work is done directly by the founder and a tight network of specialists instead of large, anonymous project teams.
Founder & Lead Consultant
The AI Tuning founder leads every project personally — from first discovery call through scoping, model selection, fine-tuning and delivery. You are never “handed off” to a junior without context.
- Hands-on experience with self-hosted LLMs, RAG systems and GPU infrastructure.
- Background in digital marketing and automation for SMEs and agencies.
- Focus on practical, explainable solutions your team can own after delivery.
Prefer to talk first? You can book a short introduction call directly via our self-hosted booking page .
Company & Legal Details
- Brand: AI Tuning
- Legal Entity: „Сандрекс Груп“ ЕООД / Sandrex Group LTD
- EIK / UIC: 206370019
- Seat: Varna, Bulgaria (EU)
- Address: 13A Narodni Buditeli Blvd., 9003 Varna
- Email: [email protected]
- Website: aituning.io
For more details, see our dedicated Imprint and Privacy Policy pages.
Learn More About Our Approach
We regularly publish articles on GDPR-compliant AI, private LLM deployments and real-world use cases in legal, support and operations. This helps potential clients understand how we think about risk, data and model quality.
Secure AI Insights: European Hospital
Advanced Compliance AI Ensures Financial Integrity
GDPR Compliance Chatbot Solution
Want to Explore a Private LLM for Your Organisation?
If you are considering a GDPR-compliant private LLM for your legal, support or operations teams, the easiest next step is a short discovery call. We will map your use cases, constraints and data, then send a fixed-price proposal within 24 hours.