AI Development

AI Development Services

Custom and generative AI built around your business—chatbots, RAG assistants, automation, and AI integration that connect cleanly to your data and systems and ship with the cost and quality controls real production demands.

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NDA on request · Senior AI engineer on the first call · Honest scope and cost up front

AI Development Services — Marshall Infotechs

$15K–$250K+

MVP to enterprise AI build

RAG

Grounded on your own data

70%

Of effort is data & integration

10-20-70

Model · infra · data & change work

Where founders get stuck

Real concerns, answered before you commit

I know we should use AI, but I don't know where it actually helps.

We start with an AI opportunity and data audit, then recommend the few use cases—support automation, document search, content generation—where AI returns clear value instead of chasing hype.

Generic chatbots give wrong or made-up answers.

We build RAG so the assistant answers from your specific documents and data, with grounding and guardrails that cut hallucination and keep responses accurate and current.

We have AI in one tool but it's disconnected from everything else.

We integrate AI into your existing software, CRMs, and workflows through clean APIs, so it works inside the systems your team already uses rather than as an isolated experiment.

I'm worried about data privacy and where our information goes.

We design for your privacy and compliance posture—choosing model hosting, retention, and access controls that fit your data sensitivity, including private or open-weight model options.

Past AI work was expensive and we couldn't tell if it worked.

We define success metrics up front, measure quality on real inputs, and design model routing and caching to control cost, so you can see exactly what the investment returns.

What we build

Custom and generative AI we deliver

Generative AI applications

Content generation, summarization, drafting, and creative tools built on frontier or open-weight models and tuned to your tone, formats, and quality bar.

RAG chatbots & assistants

Domain-specific assistants that answer from your documents and data using retrieval-augmented generation—the most cost-effective path to accurate, grounded responses.

AI automation

Automating document processing, classification, routing, and repetitive knowledge work so your team spends time on judgment rather than busywork.

AI integration services

Embedding AI into your existing products, CRMs, and internal tools through clean APIs so intelligence lives where your team already works.

AI consulting & strategy

Opportunity assessment, data-readiness review, and a pragmatic roadmap that prioritizes the use cases with real ROI and avoids costly dead ends.

Secure & private deployment

Model hosting, access controls, and data-retention choices matched to your privacy and compliance needs, including private and open-weight model options.

How we deliver

A clear, milestone-based delivery process

01

Discovery & use-case selection

We assess where AI returns real value for your business and pick the highest-ROI use cases, with clear success metrics defined before any build.

02

Data & integration audit

We review the data and systems the solution depends on, since data quality and integration readiness drive most of the cost and outcome.

03

Model & architecture choice

We select the right model—frontier or open-weight, hosted or private—and design the RAG, automation, or integration architecture to fit accuracy, privacy, and budget.

04

Build & ground

We implement the application, ground it on your data with RAG where relevant, and wire it into your existing tools and workflows.

05

Test & measure quality

We evaluate output quality on real inputs, tune prompts and retrieval, and confirm the solution clears the success bar before it reaches users.

06

Deploy & optimize

We deploy with cost controls, monitoring, and a feedback loop, then refine based on real usage so quality and economics improve over time.

Pricing & timelines

AI development cost (2026)

Indicative ranges blended from current market data. Your fixed-scope quote is set after a short discovery call.

AI feature / RAG assistant

$15K–$40K

2–6 weeks

A focused generative AI feature or a RAG chatbot answering from a clean knowledge base—the quickest way to put AI to work.

Best for: Adding one AI capability to an existing product.

Most popular

Custom AI application

$25K–$80K

4–10 weeks

A custom assistant, automation, or generative tool grounded on your data and integrated into your workflows, with quality evaluation.

Best for: Teams wanting a real AI product, not a prototype.

Multi-feature AI platform

$80K–$250K

10–20 weeks

Several AI capabilities, deeper integrations, and shared infrastructure across your product or organization.

Best for: Rolling AI across multiple workflows or teams.

Enterprise AI program

$200K–$400K+

4–12 months

A governed AI platform with deep integration, access controls, monitoring, and change-management support at organization scale.

Best for: Enterprises standardizing AI across the business.

By the 10-20-70 rule, most cost is data, integration, and change management—not the model itself. Ongoing LLM, hosting, and vector storage fees apply after launch, so we design model routing and caching to keep them predictable. Final pricing is fixed after discovery and a data audit.

Models, data & deployment

  • Frontier LLMs (GPT, Claude, Gemini)
  • Open-weight models (Llama, Mistral)
  • RAG pipelines & embeddings
  • Vector databases (pgvector, Pinecone)
  • Prompt engineering & evaluation
  • Workflow & automation integration
  • Private / self-hosted model options
  • Cloud AI infrastructure
  • Model routing & caching

Why teams choose Marshall

Use cases with real ROI

We steer you toward the AI applications that pay back and away from hype, defining success metrics before building so the investment is measurable.

Accuracy through grounding

RAG and careful retrieval keep answers tied to your real data, cutting the hallucinations that make generic AI tools untrustworthy.

Privacy-aware by design

We match model hosting, retention, and access controls to your data sensitivity, including private and open-weight options when the cloud isn't appropriate.

Built to integrate, not isolate

We embed AI into the systems your team already uses, so it becomes part of daily workflow rather than a disconnected demo.

FAQ

AI development FAQs

What are AI development services?

AI development services cover building custom and generative AI for your business—including RAG chatbots and assistants, content generation tools, document and workflow automation, AI integration into existing software, and strategy or consulting on where AI returns real value.

What is RAG (retrieval-augmented generation)?

RAG lets an AI answer using your specific documents and data by retrieving relevant content and feeding it to the model at query time, instead of relying only on the model's training. It's the most common, cost-effective way to build accurate, domain-specific assistants.

How much does custom AI development cost in 2026?

A focused AI feature or RAG assistant runs $15,000–$40,000, a custom AI application $25,000–$80,000, a multi-feature platform $80,000–$250,000, and an enterprise program $200,000–$400,000+. Most of the cost is data, integration, and change management rather than the model.

Why does most of the cost go to data and integration, not the model?

By the 10-20-70 rule, roughly 10% of effort is model work, 20% is infrastructure, and 70% is data pipelines, integrations, testing, and change management. The model is largely a commodity; the value and cost are in connecting it reliably to your data and systems.

How long does an AI development project take?

A focused AI feature or RAG assistant ships in 2–6 weeks, a custom AI application in 4–10 weeks, a multi-feature platform in 10–20 weeks, and an enterprise program in 4–12 months. Integration complexity and approval cycles drive most of the timeline, not model work.

What are the ongoing costs of running an AI solution?

Expect LLM API fees of about $300–$5,000 per month per roughly 10,000 queries, hosting of $50–$500, vector storage of $0–$1,000, and observability tooling. Operating costs can grow significantly with usage, so model routing, caching, and token budgets matter from the start.

How do you stop a chatbot from giving wrong or made-up answers?

We ground the assistant on your real data with RAG, constrain it to retrieved content, add guardrails, and evaluate output quality on real inputs before launch. Grounding plus evaluation is what turns a generic chatbot into a reliable, domain-specific assistant.

Can you integrate AI into our existing software?

Yes. We embed AI into your products, CRMs, internal tools, and workflows through clean APIs so it works inside the systems your team already uses. The integration and data-readiness work is usually the bulk of the project.

What is generative AI and how is it different from automation?

Generative AI creates new content—text, summaries, drafts, code—using large language models, while AI automation applies models to streamline repetitive tasks like classification, routing, and document processing. Many projects combine both, generating content and automating the workflow around it.

How do we keep our data private when using AI?

We match model hosting, data retention, and access controls to your sensitivity and compliance needs, and can use private or open-weight models when sending data to a public API isn't appropriate. Privacy and compliance posture are decided early, before any data flows.

How do I know if AI is worth it for my business?

We run an opportunity and data-readiness assessment, identify the few use cases with clear ROI, and define success metrics before building. If a simpler tool solves the problem, we'll say so—AI should be chosen because it returns value, not because it's trendy.

Do you build AI agents that take actions, not just answer?

Yes. When you need software that reasons and acts across tools—processing tasks and updating systems rather than only answering questions—that's AI agent development, a focused discipline we cover on its own with evaluation harnesses and action guardrails.

Last updated: June 2026

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