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Large Language Models (LLM) Development Services

Language models are conquering the world, and businesses have to adapt. At Yellow, we design and develop LLM solutions that actually fit your workflows, processes, and goals, not the other way around. Whether you need a little smart copilot or an enterprise-grade AI product, we will turn language models into something your team can use on day one.

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Our LLM development services

What we can do to help you reach your business goals.

Our Technical Expertise

The Yellow team applies all their knowledge to large language model development services to provide the best AI experience possible.

Natural language processing

Our team helps machines understand languages so your apps can read, interpret, and respond just like a person would.

Machine learning

Our machine learning skills turn data into smart predictions, insights, and recommendations that drive decision-making.

Sentiment analysis

We teach AI to detect the mood and understand the implications behind the dialog in various conversational contexts.

In-context learning

We teach the model to perform a task simply by seeing examples in the conversation and/or input, with no need for retraining.

Few-shot learning

With the help of few-shot learning, the model shows good performance during a new task after seeing just a small number of examples.

Retrieval-augmented generation (RAG)

We connect LLMs with your own data sources, so the algorithm can fetch relevant information on demand instead of just theorizing.

Portfolio

What our AI agents development company has already done.

LLM-Driven Legal Document Summarization
ai-agent-for-pre-screening
ai-concierge-for-hotel-network

Are you ready to make your business smarter? We will help!

Benefits of a custom LLM

Custom LLM development services can take your business to the next level.

Cost efficiency

A custom LLM solution focuses only on what your business actually needs, so no more token waste, useless features, or long-term licensing costs.

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Cost efficiency

A custom LLM solution focuses only on what your business actually needs, so no more token waste, useless features, or long-term licensing costs.

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Stronger market position

Unlike generic AI tools, a tailored LLM is trained around your data, processes, and customers, meaning insights and capabilities competitors can’t easily copy.

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Stronger market position

Unlike generic AI tools, a tailored LLM is trained around your data, processes, and customers, meaning insights and capabilities competitors can’t easily copy.

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Scalability

Custom LLM applications are built to follow the growth of your business without damaging performance or exceeding budgets.

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Scalability

Custom LLM applications are built to follow the growth of your business without damaging performance or exceeding budgets.

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Security and data control

You decide where your data lives, how it’s used, and who has access, which is important for legal compliance, privacy, and enterprise-level trust.

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Security and data control

You decide where your data lives, how it’s used, and who has access, which is important for legal compliance, privacy, and enterprise-level trust.

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Large Language Model development process

In order to deliver the best results possible, we, an LLM application development company, follow a solid and proven strategy that will help you realise all the model’s potential.

Discovery and strategy

Every successful LLM project starts with an understanding of your business, goals, and existing processes. And we don’t just jump into building AI. We analyze your workflows, identify opportunities where a language model can add real value, and outline a clear strategy that goes along with your long-term objectives.

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Discovery and strategy

Every successful LLM project starts with an understanding of your business, goals, and existing processes. And we don’t just jump into building AI. We analyze your workflows, identify opportunities where a language model can add real value, and outline a clear strategy that goes along with your long-term objectives.

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Model architecture and design

Once we know the goals, we design the tech blueprint for your solution. This includes choosing the right model type, architecture, and size, deciding how all its parts will interact with your systems, and planning for growth and efficiency.

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Model architecture and design

Once we know the goals, we design the tech blueprint for your solution. This includes choosing the right model type, architecture, and size, deciding how all its parts will interact with your systems, and planning for growth and efficiency.

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Development and integration

Our team builds the product, writes the necessary pipelines, and merges it with systems, databases, and processes you already have. The result is an AI-powered solution that becomes a native addition to your business, making adoption smooth and frictionless for your team.

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Development and integration

Our team builds the product, writes the necessary pipelines, and merges it with systems, databases, and processes you already have. The result is an AI-powered solution that becomes a native addition to your business, making adoption smooth and frictionless for your team.

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Model training

With the help of your data and cutting-edge methodologies like few-shot learning, in-context learning, and RAG, we embark on “teaching” the system. This way, your LLM becomes accurate, context-aware, and able to see the nuances of your business peculiarities and the way you talk to clients.

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Model training

With the help of your data and cutting-edge methodologies like few-shot learning, in-context learning, and RAG, we embark on “teaching” the system. This way, your LLM becomes accurate, context-aware, and able to see the nuances of your business peculiarities and the way you talk to clients.

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QA and security check

Before deployment, your model undergoes quality assurance to check if it’s reliable, safe, and works like clockwork. Our engineers also implement reliable protection levels (like privacy checks, access controls, prompt injection protection) so you can trust your AI without worrying about threats and/or vulnerabilities.

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QA and security check

Before deployment, your model undergoes quality assurance to check if it’s reliable, safe, and works like clockwork. Our engineers also implement reliable protection levels (like privacy checks, access controls, prompt injection protection) so you can trust your AI without worrying about threats and/or vulnerabilities.

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Deployment and support

When everything is done, we launch your LLM solution and make sure it’s ready for real-world use. We provide the necessary maintenance/updates so the model doesn’t go astray. Whether it’s scaling for more users, bringing new features, or infusing new data into the mix, we ensure your LLM continues to deliver measurable results long after go-live.

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Deployment and support

When everything is done, we launch your LLM solution and make sure it’s ready for real-world use. We provide the necessary maintenance/updates so the model doesn’t go astray. Whether it’s scaling for more users, bringing new features, or infusing new data into the mix, we ensure your LLM continues to deliver measurable results long after go-live.

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Discover what smart tools can do for your business!

Industries

What business domains can benefit from the language model's power?

E-commerce

LLMs help facilitate customer support, personalize recommendation pages, and turn search and browsing data into full conversions and better shopping opportunities.

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E-commerce

LLMs help facilitate customer support, personalize recommendation pages, and turn search and browsing data into full conversions and better shopping opportunities.

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Real estate

From smart property search to automated document analysis, LLMs speed up communication and decision-making across the buying and leasing journey.

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Real estate

From smart property search to automated document analysis, LLMs speed up communication and decision-making across the buying and leasing journey.

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Healthcare

LLMs support clinical documentation, information access, and doctor-patient interactions while keeping data protection and legal aspects as the main focus.

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Healthcare

LLMs support clinical documentation, information access, and doctor-patient interactions while keeping data protection and legal aspects as the main focus.

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E-learning

AI-powered tutors, interesting learning opportunities, and instant content generation make education more scalable, fascinating, and accessible.

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E-learning

AI-powered tutors, interesting learning opportunities, and instant content generation make education more scalable, fascinating, and accessible.

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Manufacturing

LLMs improve operations by looking through reports, assisting with maintenance documentation, and supporting smarter planning and forecasting.

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Manufacturing

LLMs improve operations by looking through reports, assisting with maintenance documentation, and supporting smarter planning and forecasting.

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Fitness

From unique training plans to conversational coaching and user engagement, LLMs help fitness platforms deliver more motivating experiences.

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Fitness

From unique training plans to conversational coaching and user engagement, LLMs help fitness platforms deliver more motivating experiences.

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Fintech

LLMs strengthen fraud detection, client support, and market forecasting and also deal with multi-part data and regulatory requirements.

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Fintech

LLMs strengthen fraud detection, client support, and market forecasting and also deal with multi-part data and regulatory requirements.

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Travel

AI assistants handle bookings, recommendations, and real-time support, so tourists and travelers have nothing to worry about.

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Travel

AI assistants handle bookings, recommendations, and real-time support, so tourists and travelers have nothing to worry about.

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Tech stack

Tools we use to bring your ideas to life.

Programming languages

Python, C++/CUDA

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Programming languages

Python, C++/CUDA

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Machine learning/deep learning tools

TensorFlow, PyTorch

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Machine learning/deep learning tools

TensorFlow, PyTorch

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LLM/NLP libraries

SentenceTransformers, spaCy, NLTK

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LLM/NLP libraries

SentenceTransformers, spaCy, NLTK

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Model training

DeepSpeed, FSDP, LoRA/QLoRA/PEFT

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Model training

DeepSpeed, FSDP, LoRA/QLoRA/PEFT

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LLM integration

LangChain, LlamaIndex, OpenAI/Anthropic/Azure SDKs

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LLM integration

LangChain, LlamaIndex, OpenAI/Anthropic/Azure SDKs

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Vector databases

Pinecone, Weaviate, Qdrant

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Vector databases

Pinecone, Weaviate, Qdrant

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Databases/storage

PostgreSQL/MySQL, MongoDB, Redis

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Databases/storage

PostgreSQL/MySQL, MongoDB, Redis

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Deployment + DevOps

AWS, Docker, Kubernetes

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Deployment + DevOps

AWS, Docker, Kubernetes

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Why Choose Yellow For Custom LLM Development

We deliver top results to drive your business forward. Our team is here to help you realise your ideas and use models to the fullest. What makes us different?

Business-first, always

We don’t build AI for the sake of buzzwords. Every LLM solution we develop starts with your business goals, workflows, and real-world bottlenecks, so it delivers value, not just theatrical demos.

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Business-first, always

We don’t build AI for the sake of buzzwords. Every LLM solution we develop starts with your business goals, workflows, and real-world bottlenecks, so it delivers value, not just theatrical demos.

Read more

Security you can trust

Your data stays yours. We design LLM applications with privacy, access control, and regulations in mind, whether you need a private deployment or strict enterprise-level safeguards.

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Security you can trust

Your data stays yours. We design LLM applications with privacy, access control, and regulations in mind, whether you need a private deployment or strict enterprise-level safeguards.

Read more

Hands-on expertise

Our team combines deep AI knowledge with years of real software delivery experience, which means fewer experiments and more solutions that actually work in production.

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Hands-on expertise

Our team combines deep AI knowledge with years of real software delivery experience, which means fewer experiments and more solutions that actually work in production.

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Clear communication

No black boxes, no mystery updates. We explain what we’re doing, why it matters, and how it’s progressing without AI jargon overload.

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Clear communication

No black boxes, no mystery updates. We explain what we’re doing, why it matters, and how it’s progressing without AI jargon overload.

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Bring smarter automation to your business

Testimonials

A large language model development company our clients trust.

When Yellow is working on a task, they understand how it will impact the product down the line. The team has provided great insight into our processes, making sure we don’t make small mistakes that will impact us in a larger way in the future.

Christopher Bianco

Christopher Bianco

CEO, Hyvery inc.

They were very accessible regardless of the time difference as well as communication was good. We had a couple bumps here and there regarding designs that were not originally discussed in our UX/UI designs but they were quick to find solutions as well as any needed changes we requested.

Bradley J.Humble

Bradley J. Humble

Co-Founder & CTO, DealStryker, Inc.

I liked working with them because they were good. With their work, we increased our mobile app’s user usage. We also got reviewed as one of the top 10 employee engagement services in Europe. Their project management was really good. They worked in sprints, and I always communicated directly with their developer. More importantly, they were attentive to our project's details.

Thomas Urban

Thomas Urban

Founder & CTO, Weffect

Browser compatibility and readability have increased markedly since the engagement began. Yellow's development process helped them beat deadlines and respond quickly to any technical concerns that arose. Their ability to bring creative ideas of their own to the table made them a valuable partner. Yellow typically understood exactly what the issue was and came back with a fix right away. 

Jerry Sparkman

Jerry Sparkman

IT Director, National Association of Tax Professionals

If you are looking for a partner to collaborate with for the development process, I would consider hiring Yellow. Yellow has an intelligent team of developers that collaborated on the project to build a quality app. They follow instructions seamlessly, respond effectively to feedback, and invest themselves in the overall success of the product. I would happily use them again if we needed developing services.

Chris Pointon

Chris Pointon

CTO, Racefully

Yellow is by far the best at helping us make decisions to push our company forward. I’d heard about them through a personal connection in the Bay Area. Yellow stands out because they’re invested in the results and clients. Every single person on Yellow’s team genuinely cares about what they’re doing. I really appreciate that about them and it’s the main reason we will continue our relationship for as long as possible.

William Hamilton

William Hamilton

Co-Founder, SmartPath.co

Yellow quickly and seamlessly assimilated into a fast-paced and nuanced workflow, completing all deliverables on time. Responsive to questions, updates, and issues, they have streamlined management operations and reduced work backlogs by directing communication to appropriate in-house team members.

Eric Morgan

Eric Morgan

Product Manager, Speed Digital

The new features have benn well received by users. Attentive and flexible, the team excelled at responding to stakeholders in a timely matter. Their technical expertise allows them to propose valuable solutions.

Ian Ross

Ian Ross

CEO, OppSites

Engaged, supportive, and invested in project success, the team offered constructive criticism, creative guidance, and honest communication. Their user-centered approach resulted in a unique and reliable product that operates well on all systems.

Jim Barkow

Jim Barkow

Founder, Famlicious Inc.

Because of marketing costs, the B2C application fell out of use in favor of a different B2B tool. Yellow was very focused on customer satisfaction, and they participate regularly in standups. They helped solidify features, and they thoroughly explained their process.

Sandro Tuzzo

Sandro Tuzzo

CEO, Separate.us

We're impressed with their loyalty and honesty. They were able to stay true to the original quote even though we needed to change and add a few requirements. They've done a lot of good work for us on all fronts, but it's amazing to see that they're able to stick to what they initially promised.

Jon Shower

Jon Shower

CEO, BlackBird

Mainly, I go by client feedback to judge Yellow’s performance, and the clients have been very impressed with their work. The team is exact in what they do, their delivery has been good, and they’re on time and budget.

Adam Plager

Adam Plager

CEO, QKSS

Their performance was good. I didn’t expect that kind of performance from someone working offsite. I was happy that they completed the project ahead of schedule, so we had some time left to work on additional projects and improvements.

Max Abukhovsky

Max Abukhovsky

CEO & Founder, Coverium

When Yellow is working on a task, they understand how it will impact the product down the line. The team has provided great insight into our processes, making sure we don’t make small mistakes that will impact us in a larger way in the future.

Christopher Bianco

Christopher Bianco

CEO, Hyvery inc.

They were very accessible regardless of the time difference as well as communication was good. We had a couple bumps here and there regarding designs that were not originally discussed in our UX/UI designs but they were quick to find solutions as well as any needed changes we requested.

Bradley J.Humble

Bradley J. Humble

Co-Founder & CTO, DealStryker, Inc.

I liked working with them because they were good. With their work, we increased our mobile app’s user usage. We also got reviewed as one of the top 10 employee engagement services in Europe. Their project management was really good. They worked in sprints, and I always communicated directly with their developer. More importantly, they were attentive to our project's details.

Thomas Urban

Thomas Urban

Founder & CTO, Weffect

Browser compatibility and readability have increased markedly since the engagement began. Yellow's development process helped them beat deadlines and respond quickly to any technical concerns that arose. Their ability to bring creative ideas of their own to the table made them a valuable partner. Yellow typically understood exactly what the issue was and came back with a fix right away. 

Jerry Sparkman

Jerry Sparkman

IT Director, National Association of Tax Professionals

FAQ

What is an LLM?

It’s an intelligent system trained on big volumes of text to understand/generate language.

How is LLM created?

It learns from colossal quantities of data and is then fine-tuned to do specific tasks really well.

How much does an LLM solution cost?

Costs can run from thousands of dollars for just fine-tuning to millions for building a model anew.

How long does it usually take to develop a custom LLM solution?

The process usually takes from a few weeks (fine-tuning and integration) to several months (custom training + deployment).

Can LLMs integrate with the software/systems we use?

Yes, they can plug into your software via APIs/databases with minimal disruptions.

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