Custom LLM Development

Build LLMs That Speak Your Language

We fine-tune and build custom large language models that understand your domain deeply β€” delivering better accuracy, lower inference costs, and complete data ownership compared to generic APIs.

35+
Custom LLMs Deployed
70%
Avg. Cost Reduction vs API
18%
Avg. Accuracy Lift

Trusted by innovative teams worldwide

NovaPay
LedgerAI
PolicyWise
RiskLens Pro
TrustBridge Capital
Orion Systems
DocuStream
Certifications

Deep LLM Engineering Expertise

Our team has hands-on experience across every major LLM platform and fine-tuning framework.

🧠
Hugging Face Certified Trainer
Advanced model fine-tuning and PEFT techniques
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OpenAI Technology Partner
Enterprise GPT fine-tuning and deployment
☁️
AWS ML Specialty
SageMaker model training and hosting at scale
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Google Vertex AI Certified
PaLM and Gemini fine-tuning and serving
What We Offer

Custom LLM Development, End to End

From training data curation to production serving β€” every step of building an LLM that's truly yours.

01
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Training Data Curation

We build high-quality training datasets from your proprietary content β€” documents, conversations, code, support tickets β€” with deduplication, cleaning, and quality scoring.

02
🧬

Fine-Tuning & PEFT

LoRA, QLoRA, and full fine-tuning on base models like Llama, Mistral, and Gemma β€” optimized for your domain with minimal compute using parameter-efficient techniques.

03
πŸ”§

RLHF & Alignment

Reinforcement learning from human feedback to align model outputs with your brand voice, accuracy standards, and safety requirements.

04
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Evaluation & Benchmarking

Custom evaluation suites measuring domain accuracy, hallucination rates, instruction following, and task-specific metrics β€” tested against GPT-4 and Claude baselines.

05
⚑

Model Optimization & Quantization

Quantization (GPTQ, AWQ), distillation, and speculative decoding to reduce inference costs by 60–80% while maintaining quality.

06
πŸš€

Production Serving Infrastructure

vLLM, TGI, or TensorRT-LLM serving with auto-scaling, load balancing, and monitoring β€” deployed on your cloud or air-gapped infrastructure.

Tired of API Costs and One-Size-Fits-All Models?

Let's build an LLM that knows your domain and runs on your terms. Free evaluation call.

🎯 Domain-Specific Intelligence

A model that thinks like your best domain expert.

Generic LLMs are impressive but imprecise. Custom fine-tuned models deliver higher accuracy on your tasks at a fraction of the inference cost β€” with full control over data privacy.

18%
Accuracy Lift
70%
Cost Reduction
100%
Data Ownership
8wk
Avg. Delivery
About This Service

Custom LLMs for Regulated Industries

In fintech and healthcare, sending data to third-party APIs creates compliance risks. Custom LLMs keep your data in your environment while outperforming generic models on your tasks.

βœ“
Full Data Sovereignty
Your training data never leaves your infrastructure. Models are trained and served within your VPC or on-premises environment.
βœ“
Domain-Tuned Accuracy
Fine-tuned models outperform GPT-4 on domain-specific tasks because they've learned from your actual data and terminology.
βœ“
Predictable, Lower Costs
Self-hosted models eliminate per-token API charges. A fine-tuned 7B model often matches GPT-4 quality on specific tasks at 1/20th the cost.
Why OpenMalo

Why Teams Choose Us for Custom LLM Projects

We've fine-tuned models for financial document analysis, legal contract review, medical charting, and domain-specific code generation.

🏦
FinTech LLM Specialists
Models trained on financial reports, regulatory filings, transaction descriptions, and customer communications β€” with accuracy benchmarks specific to finance.
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Cost-Optimized Inference
Our quantization and optimization pipeline reduces serving costs by 60–80% while maintaining output quality β€” making custom LLMs economically viable.
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Air-Gapped Deployment
Full air-gapped deployment capability for organizations with strict data residency requirements β€” no internet dependency, no data leakage.
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Honest Benchmarking
We test against GPT-4 and Claude on your actual tasks and share results transparently. If fine-tuning won't beat the API, we'll tell you upfront.
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Continuous Improvement Pipeline
Feedback loops, periodic retraining, and performance monitoring to keep your model improving as your domain evolves.
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Right-Sized Models
Not every problem needs a 70B model. We select the smallest architecture that meets your accuracy and latency targets β€” saving compute and money.
Get Started

Tell Us About Your LLM Needs

Share your use case and data landscape. We'll respond with a fine-tuning strategy and cost comparison within 48 hours.

Free fine-tuning feasibility assessment
Cost comparison: custom LLM vs. API
NDA available upon request
Response within 48 business hours
No commitment required
0/2000
How We Work

Our Engagement Process

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1

Use Case & Data Assessment

Evaluate your tasks, data quality, and volume to determine if fine-tuning is the right approach and which base model fits best.

πŸ“Š
2

Data Preparation

Curate, clean, and format training datasets with quality scoring and deduplication β€” the most important step for model quality.

🧬
3

Fine-Tuning & Alignment

Parameter-efficient fine-tuning with iterative evaluation, followed by RLHF alignment to match your quality standards and safety requirements.

⚑
4

Optimization & Benchmarking

Quantization, distillation, and serving optimization β€” benchmarked against commercial APIs on your actual evaluation suite.

πŸš€
5

Deploy & Monitor

Production serving infrastructure with auto-scaling, monitoring dashboards, and continuous improvement pipelines.

Client Stories

What Our Clients Say

β€œWe were spending $28K/month on GPT-4 API calls for document analysis. OpenMalo fine-tuned a Llama 3 model that performs better on our specific documents and costs $4K/month to self-host. The ROI was immediate.

AS
Ankit Sharma
VP Product, LedgerAI

β€œOpenMalo was honest about what fine-tuning could and couldn't do for our use case. They recommended RAG for one task and fine-tuning for another. That kind of honesty is rare in this space.

CW
Catherine Wu
CTO, PolicyWise

β€œOur custom LLM handles financial report summarization with 94% accuracy compared to 76% from the generic API. The compliance team can actually trust the output now, which changed how we operate.

MT
Michael Torres
Director of AI, RiskLens Pro
Featured Case Study

$288K Annual Savings with Custom Financial LLM

🏦 FinTech

Domain-Specific LLM for Financial Document Analysis

How we fine-tuned a custom LLM that outperforms GPT-4 on financial document analysis tasks while reducing inference costs by 85% β€” saving $288K annually for a mid-size fintech.

94%
Domain Accuracy
85%
Cost Reduction
$288K
Annual Savings
The Challenge

Generic APIs too expensive and inaccurate for financial docs

LedgerAI was processing 50,000+ financial documents monthly using GPT-4 API calls β€” high costs, inconsistent accuracy on financial terminology, and data privacy concerns from sending client documents to external APIs.

$28K/month in API costs scaling linearly with volume
76% accuracy on financial-specific extraction tasks
Client data being sent to third-party API servers
No ability to customize model behavior for edge cases

Our Approach: Curated 15,000 high-quality financial document examples, LoRA fine-tuned Llama 3 8B, quantized to 4-bit with AWQ, deployed on 2x A100 GPUs in client VPC β€” accuracy exceeded GPT-4 on all domain benchmarks.

Read Full Case Study
FAQ

Frequently Asked Questions

Prompt engineering works for general tasks. RAG is best when you need the model to reference specific documents. Fine-tuning is ideal when you need the model to learn domain-specific patterns, terminology, or output formats that prompting can't reliably achieve. We help you decide during our feasibility assessment.