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Custom Domain-specific LLM Development Company

Our AI experts, highly skilled in ML and NLP technologies and associated toolkits, specialize in building domain-specific Large Language Models (LLMs) fine-tuned with your company’s proprietary data. This tailored approach ensures that these private LLMs understand your industry’s nuances and can deliver precise, contextually relevant, and highly insightful responses to domain-specific queries.


Fullstack Developers

Software Products Delivered

AI Solutions

Total Years of Experience

Our Services

Consulting and Strategy Development

Consulting and Strategy Development

Our consulting service begins with a thorough evaluation of your business workflows, identifying areas where Language Model (LLM)-powered solutions can optimize operations. We then create a custom implementation strategy, considering factors like data security, compliance, and scalability. Our domain-specific LLMs can empower your business to streamline processes, boost productivity and enhance customer experiences.

Data Engineering

Data Engineering

We expertly collect, clean, and annotate raw data for usability and insight. We handle large unstructured datasets derived from diverse sources, ensuring they are efficiently organized and standardized to facilitate seamless LLM fine-tuning. Our team’s commitment to data quality and consistency guarantees that your large language models can produce reliable and actionable results, making your AI initiatives truly transformative.

Domain-specific LLM Development

Domain-specific LLM Development

We specialize in creating private LLMs, fine-tuned to understand and generate contextually relevant responses in your specific domain. Whether you are in healthcare, finance, or retail, we create LLMs that grasp your domain’s nuances and intricacies effectively. Our service encompasses data preparation, model fine-tuning and ongoing optimization, delivering a potent tool for content generation, automation etc.

Domain-specific LLM

Domain-specific LLM-powered Solution Development

We work closely with our clients to understand their unique challenges and objectives, leveraging the capabilities of LLMs to deliver custom solutions. From natural language understanding and content generation to data analysis and automation, our domain-specific LLM-powered solutions empower businesses to transform their operations, streamline processes, and gain a competitive edge in their respective fields.

Integration Into Business Workflows

Integration Into Business Workflows

Our integration service seamlessly incorporates domain-specific LLM-powered solutions into your existing systems and workflows, be it a customer service platform or a content management system. With our integration service, you can leverage the power of AI to optimize decision-making, automate tasks, and drive innovation, all within the familiar framework of your daily operations, enhancing productivity and efficiency across your organization.

Support and Maintenance

Support and Maintenance

Count on us for post-deployment support and maintenance, ensuring the ongoing success of your domain-specific LLM-powered solutions. This includes continuous model monitoring, adaptation to evolving data and use cases, as well as comprehensive troubleshooting, bug fixes, and timely updates. Additionally, we offer proactive performance optimization to ensure your solutions consistently deliver peak performance and value.

Our Areas of Expertise

Natural Language Processing

Natural Language Processing (NLP)

Our developers use NLP tools, frameworks and libraries like NLTK, spaCy, and TensorFlow to build custom NLP models equipped with NLU and NLG capabilities to analyze, interpret and generate human language.
Few-shot Learning

Few-shot Learning

Our developers leverage Meta-Transfer Learning, Meta-Learning Toolkit, and Reptile to build custom LLM-based solutions that can perform proficiently on new tasks or domains with minimal training data.

Sentiment Analysis

Sentiment Analysis

We utilize developer resources like VADER and NLTK to preprocess and analyze text data and apply ML techniques such as Naive Bayes to build LLM-based systems that can effectively perform sentiment analysis.

Machine Learning

Machine Learning

Leveraging our expertise in scikit-learn, Keras, PyTorch, and other leading ML development frameworks, our developers deploy advanced ML-based solutions trained using prominent training techniques, such as supervised, unsupervised and reinforcement.

Model Fine-tuning


We prepare data, fine-tune model parameters, customize model architecture, and undertake other vital steps necessary for optimizing pre-trained LLM models, like OpenAI models, BERT, LaMDA, or BLOOM, for specific domains and language-related tasks.

In-context Learning

In-context Learning

We use developer resources such as PyText, FastText, and Flair to train and update language models with new data, continuously allowing them to adapt to new contexts, domains, and users, improving their performance over time.

AI Models We Have Expertise In



A set of OpenAI models that can solve complex problems with high accuracy, thanks to its advanced reasoning capabilities and broader general knowledge.



LLaMA (Large Language Model Meta AI) is a foundational large language model designed to generate text, have conversations, summarize written material, solve math theorems or predict protein structures.
PaLM 2

PaLM 2

The newest extensive language model from Google, stands out in performing intricate reasoning assignments, such as code interpretation, mathematical solutions, categorization, query responses, and translation with proficiency in multiple languages. This model highlights Google's commitment to responsible AI, surpassing previous capabilities in natural language generation.


Claude is a large language model (LLM) by Anthropic, trained as a virtual assistant that can be integrated with business workflows. Claude, accessible through both a chat interface and API in Anthropic’s developer console, can perform an extensive range of conversational and text-processing tasks.


A set of OpenAI models capable of performing natural language processing tasks such as text generation, summarization, translation and question answering.

  • Davinci

  • Curie

  • Babbage

  • Ada



A set of OpenAI models, including the highly capable and cost-effective Gpt-3.5-turbo, that improve on GPT-3 and can generate text or code.



DALL·E by OpenAI generates realistic images and artwork based on text prompts. It can produce images of a specified size, modify pre-existing images and generate variations of user-provided images.



Whisper is a general-purpose speech recognition OpenAI model that can perform language identification, speech translation and multilingual speech recognition.



OpenAI's Embeddings are numerical representations of linguistic units like words and phrases that capture the semantic meaning and relationships between them.



Moderation models are machine learning OpenAI models designed to assist in content moderation tasks, such as identifying and removing inappropriate or harmful content from online platforms.

Stable Diffusion

Stable Diffusion

Stable Diffusion generates detailed images from text prompts and can also be used for tasks like inpainting, outpainting, and image-to-image translations guided by text.


Google's Bard, powered by LaMDA, is a text-to-text generative AI chatbot designed to generate human-like responses to natural language prompts, making it capable of engaging in conversations with humans.

Tech Stack Used for Development

AI Frameworks


Cloud Platforms


Integration and Deployment Tools


Programming Languages





Supervised/Unsupervised Learning


Metric Learning

Fewshot Learning

Ensemble Learning

Online Learning

Neural Networks



Representation Learning

Manifold Learning

Variational Autoencoders

Bayesian Network

Autoregressive Networks

Long Short-term Memory (LSTM)

Our Artificial Intelligence Portfolio

Generative AI Application

Generative AI Application

LLM-powered App for Compliance and Security Access

LeewayHertz has partnered with Scrut to engineer an LLM-powered app designed to streamline access to compliance benchmarks, frameworks, and audit-relevant data for Scrut's clientele. Drawing on Scrut's proprietary data, our team utilized advanced embedding and prompt engineering techniques to seamlessly incorporate an LLM, yielding rapid query responses and upgraded user experiences. This initiative has equipped Scrut's clients with a robust tool, fostering informed decision-making and providing clear insight into industry benchmarks as well as Scrut’s risk monitoring and mitigation strategies and services.
Generative AI Application
LLM-powered Application for Safer Machinery Troubleshooting
AI-powered App

LLM-powered Application for Safer Machinery Troubleshooting

LeewayHertz collaborated with a top-tier Fortune 500 manufacturing company to develop an innovative LLM-powered machinery troubleshooting application. This innovative solution streamlines machinery maintenance, elevates safety protocol adherence and mitigates operational risks of the firm. By seamlessly integrating static machinery data and dynamic safety policies, the application provides quick access to relevant information for troubleshooting issues while also enhancing safety with clear and detailed instructions on equipment handling.



The AI-Powered Story Creation Platform

MakeMyTale is a cutting-edge story creation and sharing platform that leverages advanced AI technology to deliver a truly personalized experience. Its user-friendly interface empowers users to shape the theme and characters of their story with ease. The platform's AI-powered audio and video creation capabilities bring stories to life by generating captivating audio and visual versions. Additionally, the option for co-authoring enables seamless sharing with a global audience.



AI SEO Optimizer

ReCrisp is an AI-powered keyword optimization tool that helps businesses boost their search engine rankings and drive organic traffic to their website. It uses the latest advancements in AI to provide highly accurate optimization suggestions for easy optimization without technical expertise. With continuous optimization, ReCrisp keeps your website up-to-date with search engine algorithms while saving you time and resources with its efficient optimization process. ReCrisp, with its highly user-friendly interface, helps you optimize your website for maximum visibility and improved performance.

Big Brands Trust Us

LeewayHertz Clients

Our Engagement Models

Digital Transformation Services LeewayHertz

Dedicated Development Team

Our developers leverage cutting-edge cognitive technologies to deliver high-quality services and tailored solutions to our clients.

Dedicated software development team LeewayHertz

Team Extension

Our team extension model is designed to assist clients seeking to expand their teams with the precise expertise needed for their projects.

Dedicated software development team LeewayHertz

Project-based Model

Our project-oriented approach, supported by our team of software development specialists, is dedicated to fostering client collaboration and achieving specific project objectives.

Get Started Today

1. Contact Us

Fill out the contact form protected by NDA, book a calendar and schedule a Zoom Meeting with our experts.

2. Get a Consultation

Get on a call with our team to know the feasibility of your project idea.

3. Get a Cost Estimate

Based on the project requirements, we share a project proposal with budget and timeline estimates.

4. Project Kickoff

Once the project is signed, we bring together a team from a range of disciplines to kick start your project.

Start a conversation by filling the form

Once you let us know your requirement, our technical expert will schedule a call and discuss your idea in detail post sign of an NDA.

All information will be kept confidential.


What are Large Language Models (LLMs)?

Large Language Models (LLMs) are AI models that can accurately understand and generate human language. They are trained on massive amounts of text data and can be fine-tuned for tasks such as language translation, text summarization, and sentiment analysis.

What services do you offer as a domain-specific Large Language Model development company?

We offer a range of services, including LLM-based consulting and strategy formulation, domain-specific LLM development, LLM-powered solutions development, integration into business workflows and support & maintenance. Our team of experts has the experience of helping businesses fully harness the power of large language models for streamlining their operations or research needs.

What industries do you serve?

We create solutions for various industries, including healthcare, finance, e-commerce, education, and more. Our custom solutions are tailored to meet the specific needs of our clients and are designed to streamline business processes and improve customer engagement.

Which types of large language models fall within your domain of expertise?

We have expertise working with diverse large language models, including GPT-3, BERT, RoBERTa and T5. Our team of experts will select the best model for your specific needs and fine-tune it for highly accurate and domain-specific responses. We then use the fine-tuned model to create a customized solution tailored to your business needs, followed by its seamless integration into your enterprise environment.

How do you ensure the quality of the domain-specific LLMs and solutions you develop?

We follow an end-to-end development process that includes testing, validation, and ongoing support & maintenance. Our dedicated team of experts is committed to delivering private LLMs and solutions of exceptional quality and reliability, consistently surpassing our clients’ expectations.

What is domain-specific LLM development?

Domain-specific LLM development refers to creating a customized large language model tailored to a company’s specific needs and requirements. It allows full control over the model’s training, architecture, and implementation, ensuring a more optimized performance for unique use cases.

Why should I choose a private LLM over a general-purpose model?

A private LLM is customized to your particular domain or use case, reducing dependency on major AI providers and ensuring cost efficiency. It also provides enhanced data privacy and security and can be aligned with open-source technologies if desired.

How is a private LLM customized to a business’s needs?

A private LLM is a customized model fine-tuned using domain-specific datasets to align with a business’s applications, terminology, and context. This ensures more relevant and enhanced performance compared to general-purpose models.

How do you ensure data privacy and security?

Our stringent security measures include providing you with complete access control and the option to store your data on your servers. This proactive approach significantly lowers the likelihood of data breaches and unauthorized access, guaranteeing the security of your sensitive data.

How do I get started?

To get started, simply contact us and tell us about your project needs. We will collaborate with you to understand your requirements and the project’s scope to develop a customized solution that meets your needs.