AI development services by Lemon.io

Attract users with new generative AI features, build LLM products to drive growth, or apply flawless AI agents that save costs. Lemon.io is here to get you covered end-to-end.

Teams that shipped with Lemon

I’ve been able to work from the Philippines, all over Europe, and Brazil without missing a single project, learning a ton of different technologies.

Iven PratsIven PratsSenior Full-Stack Developer

I’ve been working with Lemon since 2021, building projects across healthcare, travel, ecommerce, and fintech. I really appreciate the team’s support and truly believe this company is unique.

Viktoria BohomazViktoria BohomazFull-Stack Developer

One of the best things about Lemon is the opportunities you get. They have the connections, the clients, new companies who are constantly looking for engineers in different stacks.

Sam OykeyeSam OykeyeSenior Full-Stack Developer

AI expertise you need, plus delivery management

The problem

Sourcing, vetting, and hiring data scientists, LLM engineers, or computer vision developers take months. All results in losing business momentum.

The solution

Get AI consulting and full delivery without hiring or management burden. You share a task — we scope it, form a team from our vetted pool, and own the delivery.

From idea to AI power, we craft it all for you

  1. 1

    Share goal

    New idea or a shipped feature acting up — tell us the goal, the data, what went wrong last time if there’s a case.

  2. 2

    See scope & budget

    A product manager walks you through an AI strategy, action plan, team vision, timelines, and budget options.

  3. 3

    Get AI/LLM team

    Top performers from the vetted pool of large language model and ML specialists will work on your project.

  4. 4

    Get AI done for you

    An LLM set in motion, a conversational AI assistant live, or a self-standing AI-powered application launch. We hand you a working tool.

Start with a scoping call

Collaboration for AI you’ll appreciate

Business-focused AI decisions

Your business, niche, and existing stack shape an AI strategy and custom AI solutions. No generic build.

PoC scoped & priced

Single entry point

Your delivery manager — with an AI engineering background — explains, updates, listens to feedback, and manages the team.

PM that speaks your goals

Sharp AI expertise

LLM builders, NLP engineers, computer vision developers, data engineers, AI API integrators, or LLMOps. We build a team around your needs.

1500+ vetted seniors

Growth secured

You get documentation to continue in-house. All engineers are tested on cybersecurity and core software engineering.

You own IP

Senior AI talent from Europe, LatAm, the US, and Canada

Years building software

10+

Developers placed

2K+

Marketplace acceptance rate

1.2%

Turnaround to a scoped plan

~24h

For AI that’s new, stuck, or breaking

Founders with an idea, no ML team

Get a partner who picks the model, defines the architecture, and explains every tradeoff.

Teams whose AI lost trust

Wrong answers from a chatbot, missed signals from an anomaly detection model, a support inbox full of complaints. We fix it.

PoCs stuck in demo mode

It worked in the pitch deck. Lemon.io makes it hold up under real traffic and fast-growing data.

Enterprises testing AI

Prove it on one workflow — fraud detection in FinTech, demand forecasting, predictive maintenance — before going company-wide.

Questions to ask before hiring AI company

What are AI development services?

AI development services — also called artificial intelligence development services, delivered by an AI software development company, an artificial intelligence development company, or a custom AI development company — are end-to-end offerings for crafting artificial intelligence solutions. 

This includes custom machine learning models trained on your data, natural language processing (NLP), computer vision, and generative AI solutions, AI API integration with foundation models, AI agents and AI agent development, AI chatbot development, conversational AI, and AI application development shipped as AI-powered applications.

What should I look for in an AI development company?

Ask for an example of an AI feature shipped to users and whether they scope or diagnose before quoting a price. Ask who owns the outcome if the first version underperforms. 

If you already have an AI feature that isn’t working, ask specifically whether they diagnose the root cause before recommending a rebuild.

How much does an AI developer cost?

Senior AI development in the US typically runs $150–$250+ per hour. Vetted senior engineers through a marketplace like Lemon.io typically run $40–$90 per hour for comparable seniority. That’s developer time only — running the model itself (inference, hosting, API costs) is a separate, ongoing line item. 

How long does it take to build a custom AI solution?

A single AI feature — a chatbot, a document-search tool built on RAG — reaches a working proof of concept in 2–6 weeks. Getting it production-ready, with evals and full integration, typically adds another 2–4 months. 

If you’re fixing something that already exists, the timeline flips: diagnosis takes a few days, and a targeted fix often ships in 1–3 weeks once the cause is known.

Which AI platforms or frameworks do you use — and why does RAG matter?

No fixed default. The right foundation model — ChatGPT, Gemini, Claude, Llama, or another — and framework, often LangChain, depends on your data, latency needs, and budget; your delivery lead recommends a stack once they’ve seen the use case. 

RAG (retrieval-augmented generation) matters most for enterprise work because it lets a model answer from your own documents — that means fewer wrong answers, no retraining every time your data changes, and an answer you can trace back to its source.

What types of AI can you build beyond chatbots?

Beyond LLM-based features, we build computer vision systems for defect detection and OCR, recommendation engines, anomaly detection and sentiment analysis models, and robotic process automation for repetitive workflows. Some run as agentic AI — systems that take multi-step action instead of just answering a question — others ship as virtual assistants that guide a user through a task end-to-end.

Do you handle data science and machine learning, or only LLM work?

Yes. Our data scientists and ML engineers handle the data engineering and data pipelines most AI projects underestimate, then build predictive analytics, predictive modeling, and deep learning or neural network solutions — for use cases like demand forecasting or fraud detection, not just generative AI features. 

If your project needs machine learning solutions on top of, or instead of, an LLM, we scope it.

What tools and platforms does your AI team work with?

It depends on the task. We work across AI platforms and frameworks — LangChain for LLM orchestration, spaCy for NLP, OpenCV for computer vision — deployed on AWS or whatever cloud you already use. 

Lemon.io’s delivery lead picks the stack once we’ve seen your data and constraints.

Shipped by Lemon

Fintech

We told Lemon.io exactly what we needed, down to the time zone and the kind of personality that would fit our team, and they found that person. He onboarded, reviewed the codebase, and worked on closing tickets within two weeks of starting with us.

Mira Boora
Mira BooraCo-founder & COO, Yeeld
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Education

It blows my mind that people are still going to platforms like Fiverr when there’s something like Lemon.io. In sales, you’re supposed to tell the story of how the client will be transformed. The Lemon.io folks pulled me into the story and walked with me through the whole thing.

Raven Van Stratten
Raven Van StrattenFounder, Pirch
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AI

With Lemon.io, we had relevant senior candidates within a week — smoother and more cost-efficient than any other channel we'd tried. Their team delivered several vetted profiles within 24 hours.

Kevin Thomas
Kevin ThomasFounder & CEO, Omniga
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AI

We needed extra AI engineers to keep our ambitious project running.

Mike Lukiman
Mike LukimanFounding Senior Software Engineer at Everstar.ai
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Share the idea, or the mess. We’ll deliver a working tool.

A 30-minute call gets you a scoped plan or a diagnosis — either way, a next step.