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ServicesArtificial intelligence(Scroll to explore)

LLM Development Services

Development Services

Large Language Models have fundamentally changed what software can do with language. At Zentury Studio, we build production-ready LLM solutions — from custom fine-tuning and Retrieval-Augmented Generation (RAG) systems to full LLM-powered applications — that solve specific business problems rather than just demonstrating what’s technically possible.

Close-up of a graphics card used for model training
RAGFine-tuningGPTLLaMA
  • 450+Satisfied clients
  • 6LLM services
  • 15Industries served

01 — What we do

LLM development services we offer

From choosing the right use case to running models in production — the full lifecycle of a language-model product, built properly.

  1. 01 / 06

    LLM Strategy & Use Case Discovery

    We help you identify where an LLM can genuinely add value to your product or operations — and equally important, where a simpler approach would work better. We evaluate your use case, your data, and your constraints before recommending a technical approach.

  2. 02 / 06

    Custom LLM Fine-Tuning

    We fine-tune foundation models (GPT, LLaMA, Mistral, and others) on your proprietary data — teaching the model your domain vocabulary, your content style, your decision logic, and your quality standards. The result is an LLM that behaves like an expert in your specific field.

  3. 03 / 06

    Retrieval-Augmented Generation (RAG)

    RAG lets your LLM answer questions based on your actual documents, data, and knowledge base — rather than relying solely on its training data. We build RAG pipelines that retrieve the right context and generate accurate, grounded responses, dramatically reducing hallucination.

  4. 04 / 06

    LLM Application Development

    We build the full application layer around your LLM — user interfaces, conversation management, memory systems, tool use, and the integrations needed to connect your language model to your data sources, APIs, and workflows.

  5. 05 / 06

    LLM Evaluation & Safety

    We build systematic evaluation frameworks to measure your LLM’s accuracy, consistency, and safety — and implement guardrails that prevent harmful outputs, prompt injection attacks, and responses outside your intended scope.

  6. 06 / 06

    LLM Hosting & Infrastructure

    We handle the infrastructure side of LLM deployment — whether that means managed API services, self-hosted open-source models, or hybrid architectures. Optimized for latency, cost, and data privacy requirements.

02 — Industry use cases

Scalable solutions for any industry

LLM applications are transforming industries from legal and healthcare to e-commerce and customer service.

  1. 01

    Healthcare assistants

    In line with HIPAA and the medical sector’s strict privacy requirements, we build AI that helps physicians and nurses work more efficiently and make better judgments — while protecting all patient data.

  2. 02

    FinTech LLM use cases

    Models that help banks and financial institutions spot fraud, answer customer questions about loans and accounts, and speed up document processing — while meeting legal requirements and safeguarding financial data.

  3. 03

    E-commerce personalization

    AI that learns what each customer loves, shows them products they want, writes unique product descriptions, and sends targeted emails that lift sales and satisfaction.

  4. 04

    EdTech & learning assistants

    AI tutors that let students learn at their own pace — answering questions, creating practice exams, and tracking progress, while giving teachers insight into each student’s performance.

  5. 05

    Legal & compliance bots

    AI that reads legal documents, reviews contracts for issues, answers common legal questions, and helps attorneys find the right cases and regulations faster — with compliant, auditable work.

  6. 06

    Logistics & supply chain

    AI that plans the most efficient truck routes, monitors cargo in transit, flags delays, and helps teams schedule their work so deliveries arrive on time.

03 — How we work

From strategy to deployment, we deliver

We design your AI project from beginning to end and make sure it works properly for your users on launch day.

  1. 01

    Use Case Discovery

    We confirm where an LLM genuinely adds value, and where a simpler approach would work better.

  2. 02

    Data & Knowledge Prep

    We gather, clean, and structure your documents and data for fine-tuning and retrieval.

  3. 03

    Model Selection

    GPT, LLaMA, Mistral, or a fine-tuned model — chosen for your accuracy, privacy, and cost needs.

  4. 04

    Build & Integrate

    RAG pipelines, the application layer, and integrations with your data sources and workflows.

  5. 05

    Evaluate & Safeguard

    Accuracy and safety testing, guardrails, and protection against prompt injection before launch.

  6. 06

    Deploy & Monitor

    Production hosting tuned for latency and cost, with continuous evaluation after go-live.

04 — Technology

The LLM stack behind our solutions

Foundation models, retrieval, and production infrastructure — selected for each project’s accuracy, privacy, and cost requirements.

01 — Models

The right model. Grounded in your data.

02
  • OpenAI GPTGeneral-purpose language tasks
  • Hugging FaceOpen models like LLaMA and Mistral

02 — Build & fine-tune

03
  • PythonPipelines, training and evaluation
  • PyTorchFine-tuning foundation models
  • LangChainAgents, tools and memory

03 — Retrieval

02
  • Vector databasesFast semantic search for RAG
  • PostgreSQLStructured data and pgvector

04 — Deployment

02
  • AWSManaged and self-hosted inference
  • DockerReproducible model services

05 — Innovation

The most in-demand capabilities

Our LLM development capabilities cover the full range of what modern language models can do in production.

  • Document Q&A & Knowledge Retrieval

    Ask questions of your documents — contracts, manuals, research, support tickets — and get accurate, source-cited answers.

  • Structured Data Extraction

    Specific fields, entities, and structured data pulled from unstructured text — at a scale and accuracy manual work can’t match.

  • Automated Content Generation

    Product descriptions, email drafts, report summaries, and code — in your formats, voice, and quality standards.

  • Multi-Turn Conversational Agents

    Stateful agents with memory and tool use that handle multi-step tasks — well beyond single-turn Q&A.

06 — Industries

We’ve built software for your industry

Generic software rarely fits complex industries. We take time to understand the regulatory environment, user behavior, and operational realities of your space before writing a single line of code.

  • Agriculture
  • Fintech
  • Healthcare
  • Education
  • eCommerce
  • Hospitality
  • Entertainment
  • Government
  • Real Estate
  • Business
  • Logistics
  • Tech & IT
  • Non-Profit
  • Automotive
  • Travel & Tourism

07 — Recognition

Awards & recognition

Accelerating the path to disruption and value creation has earned us recognition from leading ratings and review platforms.

  • RightFirms — Top Mobile App Development Company 2023
  • Expertise.com — Best Mobile App Developers in Brooklyn 2022
  • SoftwareWorld — Top Rated App Development Companies US

08 — Client voice

Working with Zentury has been a game-changer for our business. Their AI solutions have revolutionized our operations, enabling us to automate repetitive tasks and make data-driven decisions with ease. We couldn’t be happier with the results.

John AndersonCEO of Oklahoma Medical Care

Partnering with Zentury has transformed our business. Their AI solutions have streamlined our operations by automating routine tasks and empowering us to make smarter, data-driven decisions. The results have exceeded our expectations.

Brandon PearsonBig Canyon Inc.

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FAQ

LLM questions

01Should I use GPT-4, an open-source model, or fine-tune my own?

It depends on your use case, data sensitivity, and cost tolerance. GPT-4 and similar APIs are excellent for general tasks with no data privacy concerns. Open-source models (LLaMA, Mistral) are better when you need data privacy, lower inference costs, or the ability to fine-tune extensively. We’ll analyze your requirements and recommend the right approach — not the most expensive one.

02What is Retrieval-Augmented Generation (RAG) and do I need it?

RAG is a technique that gives your LLM access to a knowledge base — your documents, data, or database — at inference time. Instead of relying purely on what the model learned during training, it retrieves relevant context and uses it to generate accurate, grounded responses. Most production LLM applications benefit from RAG because it dramatically reduces hallucination and keeps responses up to date.

03How do you prevent LLM hallucination in production?

Hallucination prevention is a systems problem, not just a model problem. We combine RAG (to ground responses in real data), output validation (to check responses against known facts), confidence scoring, and human-in-the-loop escalation for low-confidence responses. We also build evaluation pipelines that continuously test for factual accuracy on your specific domain.

04How long does an LLM development project take?

A focused LLM integration — like a RAG-powered Q&A system for your documents — can be delivered in 6–10 weeks. A full custom LLM application with fine-tuning, evaluation infrastructure, and production deployment typically takes 3–5 months.

09 — Get in touch

Let’s build

Let’s Build Something That Works

Have an idea you’re ready to move on? A problem your current technology isn’t solving? Our team is based in Austin, Texas, and works with businesses all over the world. Reach out — the first conversation is free, and you’ll leave with clarity, not a sales pitch.

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Studio
5900 Balcones Drive STE 100, Austin, Texas 78731

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