Startups

Custom Model Training

Custom Model Training for Startups is how early companies create defensible intelligence. Off-the-shelf AI models may be powerful, but they don’t know your domain, your customers, your tone, or your product. The fastest way for a startup to differentiate is to teach an AI model what makes the company unique—and to do so with precision, speed, and control.

Theta Tech fine-tunes open-weight models like Llama, Mistral, and others using your proprietary datasets. We sculpt models that speak your language, reflect your values, and execute with domain-specific accuracy. This is how intelligence becomes a competitive moat instead of a commodity.

Understanding the Concept

Fine-tuning adapts an existing foundation model to your unique dataset. Instead of attempting to retrain billions of parameters, modern techniques like LoRA (Low-Rank Adaptation) allow us to update only the portions of the network responsible for domain-specific behavior. This keeps training efficient, cost-effective, and achievable even for small startups.

Custom model training involves several components: dataset cleaning, curation, augmentation, quality filtering, hyperparameter tuning, evaluation loops, and security considerations. It also includes cross-domain adaptability—text for chat or reasoning, images for classification or extraction, or signals for time-series and sensor intelligence. The result is a model that doesn’t just perform tasks, but performs your tasks the way you need them done.

Why This Matters

Teach your AI what makes your startup unique.

Generic models produce generic output. They don’t understand your industry jargon, your product constraints, your compliance rules, or your customer personas. This leads to errors that cost trust, time, and money.

Startups that fine-tune models on their proprietary data unlock a substantial advantage: their AI becomes uniquely aligned with their market. Tasks become automated with greater accuracy. Customer interactions feel personalized. Internal workflows accelerate. Your data becomes leverage—and leverage becomes differentiation. Theta Tech ensures the process is efficient, strategically aligned, and production-ready.

Technical Capabilities

Sub-Services
  • LoRA and Low-Rank Fine-Tuning:
    Efficient, cost-conscious adaptation of large models without full retraining.
  • Dataset Curation and Quality Control:
    Structured pipelines for cleaning, labeling, validating, and preparing your proprietary data.
  • Continuous Evaluation During Training:
    Real-time scoring across accuracy, drift, tone, safety, and domain-specific performance.
  • Cross-Domain Model Adaptation:
    Training models for text, vision, or even sensor-based workloads depending on your product needs.
  • GPU-Optimized Training Pipelines:
    High-performance compute environments designed for rapid iteration and controlled experimentation.
  • Private Model Deployment and Hosting:
    Secure hosting of your fine-tuned model with full ownership and zero vendor lock-in.

The Result

AI that thinks like you—trained on your data, optimized for your niche.

Intelligence as a competitive moat.

All Services
Case Studies

Real-World Impact

Explore our successful AI case studies.
Algorithm for Collaboration & Distribution
Updating disparate and unorganized AI algorithm code into cohesive and easily sharable notebooks.
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Clinical UI Design for Radiology AI
Creating intuitive software interfaces that empower doctors and accelerate AI innovation
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Developing 3D Radiology AI Solutions
Moving University Client to the Cloud with Open Source Medical AI Models
Read More
Publications

Explore Our Work

See our 35+ Peer-Reviewed Publications & Patents.
Improved Active Shape Models for Segmentation of the Prostate on MR Imagery
Toth, R. “Improved Active Shape Models for Segmentation of the Prostate on MR Imagery,” M.S. Thesis, Rutgers University, 2010.
Evaluation of prostate segmentation algorithms for MRI: The PROMISE12 challenge
Litjens, G., Toth, R., van de Ven, W., Hoeks, C., Kerkstra, S., van Ginneken, B., Vincent, G., Guillard, G., Birbeck, N., Zhang, J., Strand, R., Malmberg, F., Ou, Y., Davatzikos, C., Kirschner, M., Jung, F., Yuan, J., Qiu, W., Gao, Q., Edwards, P.E., Maan, B., van der Heijden, F., Ghose, S., Mitra, J., Dowling, J., Barratt, D., Huisman, H., Madabhushi, A. “Evaluation of prostate segmentation algorithms for MRI: The PROMISE12 challenge.” Medical Image Analysis 25:18(2), Dec 2013 pp. 359-373. doi: 10.1016/j.media.2013.12.002
HistostitcherTM: An informatics software platform for reconstructing whole-mount prostate histology using the extensible imaging platform framework
Toth, R.J., Shih, N., Tomaszewski, J.E., Feldman, M.D., Kutter, O., Yu, D.N., Paulus, J.C., Paladini, G., Madabhushi, A., “HistostitcherTM: An informatics software platform for reconstructing whole-mount prostate histology using the extensible imaging platform framework.” Journal of Pathology Informatics 5(8), Mar 2014. doi: 10.4103/2153-3539.129441
A Domain Constrained Deformable (DoCD) Model for Co-registration of Pre- and Post-Radiated Prostate MRI
Toth, R., Traughber, B., Ellis, R., Kurhanewicz, J., Madabhushi, A., “A Domain Constrained Deformable (DoCD) Model for Co-registration of Pre- and Post-Radiated Prostate MRI.” Neurocomputing 144(20) Nov 2014. pp. 3-12 doi: 10.1016/j.neucom.2014.01.058
"Theta Tech AI is an exciting medical AI consulting company whom we’ve worked with for over a decade.

Their team of experienced healthcare AI developers and PhD level biomedical engineers have helped us accelerate our clinical AI research implementation efforts.

Their team is hardworking and extremely responsive.
If you’re in the healthcare technology space, you’d be remiss to not work with Theta Tech." 
Professor Anant Madabhushi
Executive Director for the Emory Empathetic AI for Health Institute
"Theta Tech AI brings together biomedical engineers and medical imaging experts who deeply understand both AI and clinical practice.

For anyone working in healthcare AI—especially at a leading university or tech company—they are a fantastic team to collaborate with."
Assistant Professor Andrew Janowczyk
Emory University
"Theta Tech AI is an outstanding team of biomedical engineers and medical imaging software experts, who can provide you with specialized healthcare AI solutions that will ensure successful ventures in this space."
Satish E. Viswanath, PhD
Associate Professor, Department of Biomedical Engineering
"Theta Tech AI is a highly competent healthcare AI consulting company that has deep expertise spanning machine learning, data science, medical data, image analysis, comprising of a great team of biomedical engineers."
Mike Galvin
Co-Founder & Chairman of LivAI

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