Custom LLMs
&Fine-Tuning
Custom LLM and fine-tuning solutions help businesses adapt language models to their domain, data, terminology, and workflows.
Instead of using ChatGPT, Gemini, or other public AI models, Ftech-it can build a custom LLM solution tailored to your business, with greater control over privacy, security, and the handling of sensitive information
Instead of using ChatGPT, Gemini, or other public AI models, Ftech-it can build a custom LLM solution tailored to your business, with greater control over privacy, security, and the handling of sensitive information
Contact us
Name*
Email*
Company*
Describe your needs
EU-based (Poland) legal entity
Transparent contracts
Customizable NDA
Clear IP ownership terms
Liability insurance (CGL) up to PLN 1,000,000
EU-based (Poland) legal entity
Transparent contracts
Customizable NDA
Clear IP ownership terms
Liability insurance (CGL) up to PLN 1,000,000
EU-based (Poland) legal entity
Transparent contracts
Customizable NDA
Clear IP ownership terms
Liability insurance (CGL) up to PLN 1,000,000
EU-based (Poland) legal entity
Transparent contracts
Customizable NDA
Clear IP ownership terms
Liability insurance (CGL) up to PLN 1,000,000
EU-based (Poland) legal entity
Transparent contracts
Customizable NDA
Clear IP ownership terms
Liability insurance (CGL) up to PLN 1,000,000
What Is a Custom LLM Solution
A custom LLM solution is an AI system built around a language model adapted to a specific business domain or task. Fine-tuning is one of the ways to achieve this by training an existing model on curated domain-specific data to improve relevance, consistency, and task performance.
Imagine that you have your own LLM, similar to ChatGPT or Gemini, but tailored to your own data, your business domain, and your requirements for privacy and security. It can be deployed on your own hardware, so your data is not sent to public servers, is not used to train public models, and is not exposed to other users.
Imagine that you have your own LLM, similar to ChatGPT or Gemini, but tailored to your own data, your business domain, and your requirements for privacy and security. It can be deployed on your own hardware, so your data is not sent to public servers, is not used to train public models, and is not exposed to other users.
Why Your Business Needs a Custom LLM
RAG systems help businesses turn scattered information into accessible, actionable knowledge.Imagine having a trusted assistant available 24/7 that knows your companThe two main advantages of a custom LLM for business are a better understanding of your business domain and terminology, as well as a higher level of data security.
In some cases, business data is too sensitive to be processed even through enterprise versions of public models. This is where custom LLM solutions deployed on your own infrastructure become especially valuable.y’s documents, processes, policies, and internal knowledge and can instantly answer questions based on them.That is what an enterprise RAG system is designed to provide
In some cases, business data is too sensitive to be processed even through enterprise versions of public models. This is where custom LLM solutions deployed on your own infrastructure become especially valuable.y’s documents, processes, policies, and internal knowledge and can instantly answer questions based on them.That is what an enterprise RAG system is designed to provide
Better understanding of your business domain
Reduced risk of sensitive data exposure
Deployment on your own infrastructure
Stronger alignment with business workflows
Reduced manual correction
Greater control over model behavior
Cost and latency optimization
The Power of AI-Core Mid-Sized Companies
In today’s AI landscape, speed and adaptability matter as much as scale. That is why AI-first mid-sized companies like Ftech-it can often deliver high-quality solutions faster and more cost-efficiently than large outsourcing vendors.
See It in PracticeTypical Custom LLM Solutions We Deliver
At Ftech-it, we build custom LLM solutions for business cases where generic AI models are not accurate, consistent, domain-aware, or secure enough. Depending on the requirements, this may include fine-tuning, instruction tuning, domain adaptation, evaluation pipelines, inference optimization, and integration into enterprise systems.
Domain-Specific AI Assistants
Domain-Aware Content Generation
Custom Models for Support and Operations
LLM Evaluation and Optimization Pipelines
Smaller Specialized Models for Production Use
LLM Adaptation for Regulated Domains
Private LLM Deployment
AI & .NET Experts with 90+ Success Stories
Why Ftech-it for AI Solutions Development
End-to-End
Ownership
We take responsibility for the full delivery cycle: from discovery and planning to development, launch, and ongoing support. The same team stays with your project from discovery to delivery
Focused
Technology
Expertise
AI is our core specialization. Deep hands-on experience in building and deploying AI systems, combined with strong software engineering, enables us to deliver robust solutions that create measurable impact.
Cost-Efficient
Delivery
Our experience in AI delivery helps us choose the right approach and keep costs under control. Performance-driven delivery and the right model choice reduce rework and optimize total delivery cost.
Transparent
Delivery Process
Discovery, design, development, testing, release, and support — delivered through a clear process with defined milestones, regular updates, and visible progress, helping reduce delivery risks at every stage.
English-Speaking
Developers & Time Zone Overlap
Our Europe-based developers speak English and work with maximum overlap with your time zone for efficient day-to-day collaboration.
World-Class AI
Experience
All our software developers apply AI in their work, delivering higher productivity without compromising engineering quality.
In addition, Ftech-it provides access to AI engineers with world-class expertise in building and deploying AI solutions.
Trusted by US
& EU Clients
5.0 rating on Clutch, based on verified reviews from US and European clients highlighting delivery reliability, responsiveness, and engineering quality
5.0
🔝 Experienced Engineers Only
Our projects are delivered by experienced AI-engineers, with senior-level ownership across architecture, implementation, and quality control.
EU-based (Poland) legal entity
Transparent contracts
Customizable NDA
Clear IP ownership terms
Liability insurance (CGL) up to PLN 1,000,000
EU-based (Poland) legal entity
Transparent contracts
Customizable NDA
Clear IP ownership terms
Liability insurance (CGL) up to PLN 1,000,000
EU-based (Poland) legal entity
Transparent contracts
Customizable NDA
Clear IP ownership terms
Liability insurance (CGL) up to PLN 1,000,000
EU-based (Poland) legal entity
Transparent contracts
Customizable NDA
Clear IP ownership terms
Liability insurance (CGL) up to PLN 1,000,000
EU-based (Poland) legal entity
Transparent contracts
Customizable NDA
Clear IP ownership terms
Liability insurance (CGL) up to PLN 1,000,000
Technologies
Languages
Python
SQL
C++/CUDA
ML (Classic)
scikit-learn
XGBoost
LightGBM
CatBoost
Deep Learning
PyTorch
TensorFlow/Keras
JAX
ONNX
NLP & CV
Hugging Face Transformers
spaCy
NLTK
OpenCV
LLM Providers & Frameworks
OpenAI
Azure OpenAI
Anthropic
Google Gemini
Cohere
RAG & Search
LangChain
LangGraph
LlamaIndex
Haystack
Vector DB & Embeddings
Pinecone
Weaviate
Milvus
Qdrant
pgvector
Sentence Transformers
FAISS
Feature Store
Feast
SageMaker Feature Store
Distributed Training & Parallelism
DeepSpeed (ZeRO)
PyTorch FSDP
Fine-tuning / Alignment
PEFT (LoRA/QLoRA)
TRL (SFT/DPO/GRPO)
Axolotl
Optimization / Quantization / Kernels
FlashAttention
xFormers
bitsandbytes
Inference / LLM Serving Engines
vLLM
TensorRT-LLM
Llama
Data Processing
Pandas
Polars
Dask
Ray
Training Platforms
SageMaker
Vertex AI
Azure ML
Experiment Tracking
MLflow
Weights & Biases
Neptune
Data/Model Versioning
DVC
lakeFS
Model Registry (MLflow / SageMaker)
Serving & APIs
FastAPI
BentoML
KServe
NVIDIA Triton
TorchServe
Containers & Infra
Docker
Kubernetes
Helm
Terraform
CI/CD
GitHub Actions
GitLab CI
Argo CD
Jenkins
Monitoring & Quality
Prometheus
Grafana
OpenTelemetry
Evidently
Langfuse
LLM Observability
Langfuse
Helicone
PromptLayer
Langsmith
Evaluation & Testing
Ragas
TruLens
DeepEval
pytest
Multimodal Embeddings (Vision/Text)
OpenCLIP/CLIP
DINOv2
Streaming & Messaging
Kafka
AWS Kinesis
Orchestration
Airflow
Prefect
Our AI Solutions Development process
Step 1
Discovery &Success Metrics
We map your business goals and technical constraints, then shape a lean delivery scope, roadmap, and estimate for timeline and budget.
Step 2
Feasibility & Approach Selection
We audit data/knowledge, run a rapid baseline (prompt/RAG or classic ML), and choose the optimal strategy: RAG, fine-tuning (LoRA), or custom training— to balance quality, cost, latency, and compliance.
Step 3
Data / Knowledge Audit
ML/DL:data availability, labels, leakage risks, feature feasibility, baseline dataset.
LLM:knowledge sources (docs, tickets, databases), permissions, update frequency, and what must be grounded vs can be generated.
Step 4
Architecture & Risk Controls
We choose the right approach: predictive ML/DL, RAG, fine-tuning, or agentic workflows; design interfaces, security/PII handling, and guardrails.
Step 5
Deployment
Predictive ML & DL
Data preparation & labeling → feature pipeline → model training & tuning → experiment tracking + model registry → packaging for inference
LLM / RAG / Agents
Prompting + workflow (LangGraph: stateful/long-running, HITL) → RAG pipeline (chunking → embeddings → vector DB → rerank) →(Optional) Domain adaptation: SFT / LoRA / QLoRA→ hardening (guardrails, retries, tools, approvals). LangGraph is often used specifically forlong-running, stateful agentsandhuman-in-the-loopcontrol
Step 6
Testing & Evaluation
ML / DL Validation
Offline evaluation (metrics, robustness), bias checks, latency/cost profiling, andbaseline distributionsfor future drift detection
LLM / RAG / Agents Validation
Quality evaluation on curated test-set + regression tests for prompts/flows; RAG metrics likefaithfulness andanswer relevance.
Step 7
Deployment & Automation
CI/CD, Infrastructure as code, scalable serving, and automated pipelines (Airflow/Prefect/etc). For ML systems we also set up monitoring jobs and alerting; the major clouds support drift/skew monitoring and quality monitoring
Step 8
Post-Launch Monitoring & Continuous Improvement
ML/DL:feature skew & drift, model quality, scheduled retraining/rollback when metrics degrade.
LLM:tracing/observability (cost, latency, errors), retrieval quality, hallucination/grounding issues, user feedback loops. For LLM apps tracing is critical because outputs are non-deterministic and debugging is harder without end-to-end traces.
Some data is simply too sensitive to be sent outside the company perimeter, even to enterprise-grade public AI platforms.
That is why custom LLM solutions matter. They let businesses use the power of modern language models while keeping data in a private, controlled environment.
In practice, this means having an LLM shaped around your own domain, your own terminology, and your own security requirements.
That is why custom LLM solutions matter. They let businesses use the power of modern language models while keeping data in a private, controlled environment.
In practice, this means having an LLM shaped around your own domain, your own terminology, and your own security requirements.
Vlad Medvedev
Lead of AI/ML
Pricing Models
For Custom AI Solutions Development, Ftech-it offers two pricing models: Fixed Price and Time & Materials.Fixed Price works best when the scope, requirements, and deliverables are clearly defined upfront. Time & Materials is a more flexible model that allows the scope and priorities to evolve as the project moves forward.
Fixed Price
A Fixed Price project starts with a clearly defined and agreed scope before development begins. Based on that scope, we set the timeline, break the work into stages, and execute against a structured delivery plan. The total project cost is agreed upfront, and you pay fixed, pre-agreed amounts for clearly defined stages of functionality, with a predictable result defined in advance.
Time & Materials
A Time & Materials model is a more flexible setup where you pay for the actual hours worked, plus any agreed additional costs. At the start of the project, we align on the initial scope and agree on hourly rates for the team. At the end of each month, you pay for the hours actually delivered. This model gives you more flexibility during delivery: you can change scope, replace one feature with another, or start a new module as your priorities evolve. It helps move forward and implement ideas without delays.
Ftech-it specialists will help you choose the pricing model that best fits your project and delivery goals. To make the differences easier to compare, we’ve prepared a chart that clearly shows the key characteristics of each model.
Fix price
Time and Materials
Project requirements
Clear, detailed requirements and agreed scope upfront
Flexible or unclear requirements are okay; scope can shift as the project progresses
Pricing and payment
Fixed total project cost, agreed upfront. Paid by milestones or in full
Based on hourly rates and materials used. Paid monthly for actual hours worked
Scope of work
Highly rigid; scope changes during delivery usually require re-scoping and additional approval extras
Highly flexible; scope can be adjusted during delivery as priorities evolve
Project timeframe
Usually fixed, but scope changes may affect timeline and cost
Flexible for changing priorities and unexpected tasks
Client involvement
Typically lower after scope and plan are approved, unless changes are introduced
Ongoing collaboration is important; client feedback continuously guides delivery
What Clients Say About Ftech-it
The speed at which they provide specialists is just amazing.
Polina Shuruba
IT Recruitment Team Lead
5.0
What I found really impressive was the expertise of their team lead, Vlad
Ivan Zaenchukovski
Senior Account Manager
5.0
They are passionate about what they do
Vladimir Bulashov
Head of Partnerships Department
5.0
It's genuinely refreshing to work with a team that prioritizes partnership and adapts so readily
Alyona Mykhailovyn
HR Director
5.0
The team we had available is always quick, energetic, full of ideas, and always willing to open new horizons
Alex Mokievets
CBDO
5.0
They asked the uncomfortable questions, challenged our logic, and helped us simplify where we were overengineering
Natallia Radzivilava
Partnership Manager
5.0
Their depth in computer vision was beyond our expectations
Denis Gerasimov
CBDMO
5.0
The most impressive was the low rates and great quality of work!
Maryna Pashkouskaya
Partnership Manager
5.0
They were always online and solved everything quickly
Julia Zakharik
Deputy Director, Global Certification
5.0
They're very skilled and highly motivated and reliable developers who really know what they do
Balint Tatai
Product Owner
5.0
I was particularly impressed by their professionalism and unwavering commitment to delivering high-quality software solutions
Vincenzo Nuzzo
CEO
5.0
We're impressed by the close communication
Hleb Skuratau
CEO
5.0
The speed at which they provide specialists is just amazing.
Polina Shuruba
IT Recruitment Team Lead
5.0
What I found really impressive was the expertise of their team lead, Vlad
Ivan Zaenchukovski
Senior Account Manager
5.0
They are passionate about what they do
Vladimir Bulashov
Head of Partnerships Department
5.0
It's genuinely refreshing to work with a team that prioritizes partnership and adapts so readily
Alyona Mykhailovyn
HR Director
5.0
The team we had available is always quick, energetic, full of ideas, and always willing to open new horizons
Alex Mokievets
CBDO
5.0
They asked the uncomfortable questions, challenged our logic, and helped us simplify where we were overengineering
Natallia Radzivilava
Partnership Manager
5.0
Their depth in computer vision was beyond our expectations
Denis Gerasimov
CBDMO
5.0
The most impressive was the low rates and great quality of work!
Maryna Pashkouskaya
Partnership Manager
5.0
They were always online and solved everything quickly
Julia Zakharik
Deputy Director, Global Certification
5.0
They're very skilled and highly motivated and reliable developers who really know what they do
Balint Tatai
Product Owner
5.0
I was particularly impressed by their professionalism and unwavering commitment to delivering high-quality software solutions
Vincenzo Nuzzo
CEO
5.0
We're impressed by the close communication
Hleb Skuratau
CEO
5.0
The speed at which they provide specialists is just amazing.
Polina Shuruba
IT Recruitment Team Lead
5.0
What I found really impressive was the expertise of their team lead, Vlad
Ivan Zaenchukovski
Senior Account Manager
5.0
They are passionate about what they do
Vladimir Bulashov
Head of Partnerships Department
5.0
It's genuinely refreshing to work with a team that prioritizes partnership and adapts so readily
Alyona Mykhailovyn
HR Director
5.0
The team we had available is always quick, energetic, full of ideas, and always willing to open new horizons
Alex Mokievets
CBDO
5.0
They asked the uncomfortable questions, challenged our logic, and helped us simplify where we were overengineering
Natallia Radzivilava
Partnership Manager
5.0
Their depth in computer vision was beyond our expectations
Denis Gerasimov
CBDMO
5.0
The most impressive was the low rates and great quality of work!
Maryna Pashkouskaya
Partnership Manager
5.0
They were always online and solved everything quickly
Julia Zakharik
Deputy Director, Global Certification
5.0
They're very skilled and highly motivated and reliable developers who really know what they do
Balint Tatai
Product Owner
5.0
I was particularly impressed by their professionalism and unwavering commitment to delivering high-quality software solutions
Vincenzo Nuzzo
CEO
5.0
We're impressed by the close communication
Hleb Skuratau
CEO
5.0
Contact Us
What’s next?
Our manager will contact you to discuss your requirements in detail and propose the best-fit solution.
Name*
Email*
Company*
Describe your needs
Prefer to talk directly?
Book a call with our Head of Sales
Book a call with our Head of Sales
Discuss your needs directly and explore the best-fit cooperation model.
Ivan L.
Head of Sales
info@ftech-it.com
You can also send your request to info@ftech-it.com or choose the most convenient way to get in touch via our Contacts page
Let’s collaborate
info@ftech-it.com
AI & Data Services
AI Solutions DevelopmentEnterprise RAG & Knowledge SearchCustom LLMs & Fine-TuningComputer Vision & Video IntelligenceAI Proof of Concept for $4999
Custom Software DevelopmentStaff Augmentation
