AI DEVELOPMENT

AI development company for products that need real AI features

Devello is an AI development company based in Istanbul. We integrate AI into new and existing products: chatbots, smart search, content generation and retrieval over your own data. Fixed-scope plans start at $5,599 and run from 4 weeks to 13 weeks.

What our AI app development covers

AI features inside your product

A chatbot, smart search or content generation built into your app, with the frontend integration included.

Model and API integration

Integration with model APIs such as OpenAI and Claude, with model selection matched to the task and prompt pipelines built for it.

RAG and your own data

Retrieval-augmented generation with a vector database, so answers come from your content instead of the model's memory.

Monitoring and control

An admin dashboard for AI configuration, plus usage analytics and monitoring on the Pro plan.

AI development cost

Every plan covers design, development, testing and deployment. Payments follow delivery milestones, so you pay as we ship.

PlanPriceDeliveryWhat's included
AI Lite$5,599Delivery: 4 weeks1 AI-powered feature (e.g. chatbot, smart search) · API integration (OpenAI, Claude, etc.) · Basic prompt engineering · Frontend integration · 1 round of revisions
AI Basic$9,599Delivery: 7 weeksUp to 3 AI-powered features · Custom prompt pipelines · Admin dashboard for AI config · Fine-tuned model selection · 2 rounds of revisions
AI Pro$13,599Delivery: 13 weeksFull AI product architecture · Multi-model orchestration · RAG / vector DB integration · Usage analytics & monitoring · Ongoing optimization support
Enterprise AICustomCustom timelineDedicated AI architect · Custom LLM training / fine-tuning · Enterprise security & compliance · SLA-backed support · White-glove onboarding
See all pricing

How a project runs

  1. 01

    Discover

    We dig into your goals, users and market to decide what to build and why.

  2. 02

    Design

    We turn those goals into flows, prototypes and a visual design aligned with your brand.

  3. 03

    Build

    We write clean, tested code in short cycles, with weekly updates and full transparency.

  4. 04

    Launch

    We ship to the stores or the web, then track real usage and keep improving.

Products we've built

Planteria application icon

Planteria

Mobile App · Consumer

Instantly identify plants and get personalized care guidance from a single photo.

Visit project
All case studies

Frequently asked questions

How much does AI development cost?

+

Devello's published AI plans are AI Lite ($5,599, 4 weeks), AI Basic ($9,599, 7 weeks), AI Pro ($13,599, 13 weeks). Enterprise AI projects are priced individually.

How long does an AI integration take?

+

AI Lite: 4 weeks. AI Basic: 7 weeks. AI Pro: 13 weeks. Enterprise timelines are set per project.

Can you add AI to an existing product?

+

Yes. AI Lite adds one AI-powered feature, such as a chatbot or smart search, to an existing product through API integration. AI Basic covers up to three features.

Which AI models do you work with?

+

We integrate model APIs such as OpenAI and Claude and select the model per feature. Larger projects use multi-model orchestration and retrieval with a vector database.

Do you build AI chatbots?

+

Yes. A chatbot is one of the features covered from the AI Lite plan upward. Devello also runs its own AI project consultant on devello.co, which prepares a preliminary project estimate.

Do you train custom models?

+

Custom LLM training and fine-tuning are part of the Enterprise AI scope, together with a dedicated AI architect and enterprise security and compliance.

We treat every service like it's our own product.

We don't just deliver services — we build scalable, well-crafted solutions designed to grow with your business. Every project gets the same care and dedication we put into our own products.