LLM Development Agency | Custom Models & RAG Systems
For: Enterprises and startups seeking custom LLMs, RAG systems, and AI copilots that operate securely on proprietary company knowledge.
We specialize in production-grade Large Language Model engineering. From fine-tuning open-source foundational models on proprietary company knowledge to architecting sub-second RAG (Retrieval-Augmented Generation) pipelines, our engineers eliminate hallucinations and deliver secure, enterprise-ready LLM systems with 100% data privacy.
LLM Development & Fine-Tuning by Zaeon Systems
Looking for an LLM development agency? Zaeon Systems fine-tunes open-source LLMs (Llama 3, DeepSeek), engineers enterprise RAG pipelines, and builds private AI copilots.
Key Capabilities
- →Open-Source LLM Fine-Tuning (Llama 3.3, DeepSeek-V3, Mistral)
- →Production RAG Pipelines with Hybrid Search (Dense + BM25)
- →Vector Database Architecture (Qdrant, Pinecone, PGVector)
- →Strict Hallucination Guardrails & Source Citation Protocols
- →Cross-Encoder Re-Ranking (Cohere, BGE) for 99%+ Answer Accuracy
- →Private Enterprise Copilots & Document Intelligence Systems
Industry Use Cases
Technologies Used
Key Capabilities
- Open-Source LLM Fine-Tuning (Llama 3.3, DeepSeek-V3, Mistral)
- Production RAG Pipelines with Hybrid Search (Dense + BM25)
- Vector Database Architecture (Qdrant, Pinecone, PGVector)
- Strict Hallucination Guardrails & Source Citation Protocols
- Cross-Encoder Re-Ranking (Cohere, BGE) for 99%+ Answer Accuracy
- Private Enterprise Copilots & Document Intelligence Systems
Business Outcomes
- ✓99%+ answer accuracy with verifiable document citations
- ✓60-80% lower inference costs compared to public API models
- ✓Sub-800ms end-to-end RAG response times
- ✓Zero proprietary data sent to third-party model providers
Tech & Tools
LLM Development & Fine-Tuning Solutions We Deliver
Every project is engineered to production-grade standards with full source-code ownership, documentation, and post-launch SLA support.
Production RAG Systems
Grounding LLMs in thousands of enterprise PDFs, databases, and Notion/Confluence docs with hybrid search and reranking.
Fine-Tuned Domain LLMs
Adapting open-source foundation models via LoRA/QLoRA on your proprietary industry terminology, contracts, and tone.
Enterprise AI Copilots
Custom internal AI assistants that connect to Slack, Teams, CRMs, and ERPs to automate multi-department workflows.
Document Intelligence & Extraction
High-throughput automated parsing of complex financial statements, invoices, and legal contracts into structured JSON.
Our LLM Development & Fine-Tuning Engagement Process
Knowledge Audit & Architecture Design
We analyze your document formats, query complexity, latency targets, and compliance requirements to pick the optimal LLM pattern.
Semantic Chunking & Embedding Pipeline
Implementing layout-aware semantic chunking and hybrid dense/sparse vector indexing in Qdrant or Pinecone.
Re-Ranking & Prompt Guardrail Engineering
Integrating cross-encoder re-rankers, system prompt guardrails, and automated citation enforcement for zero-hallucination outputs.
Model Fine-Tuning & Quantization
Fine-tuning model weights using QLoRA/DPO on GPU clusters and packaging for vLLM or Ollama private inference.
Evaluator Benchmarking & Deployment
Evaluating system performance using Ragas (Faithfulness, Relevance), followed by zero-downtime deployment to secure VPC.
Project Deliverables
Every llm development & fine-tuning engagement includes full handover with 100% IP ownership and 30-day post-launch warranty.
Fine-Tuned Model Weights
Full weights, adapter files, and tokenizers delivered for client-hosted deployment.
Complete RAG Pipeline Code
Production Next.js / Python service with vector indexing, caching, and stream responses.
Evaluation Benchmark Suite
Automated test suite measuring answer faithfulness, context recall, and latency.
Security & Guardrail Config
Defense against prompt injection, data exfiltration, and out-of-scope queries.
Frequently Asked Questions – LLM Development & Fine-Tuning
Common questions about Zaeon Systems' LLM Development & Fine-Tuning agency services, pricing, timeline, and technology stack.
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