Custom AI development services from Kortex Labs, a founder-led studio: AI and LLM apps, assistants trained on your documents, and automation, built to a fixed scope and a fixed price and shipped with evals, monitoring and docs. You work with the engineer writing the code and own all of it. Free quote within 24 hours.

Most AI projects die in the gap between a slick demo and a system real users can depend on. Our AI development services exist to close that gap: we take your idea and turn it into reliable, production-grade software — not a prototype that breaks the first time a customer touches it.

What our AI development services include

  • AI & LLM apps — custom products built on OpenAI, Claude, Gemini, and open-source models
  • RAG systems — chat and search over your own data, with citations (see RAG vs fine-tuning)
  • AI agents & automation — multi-step workflows that take real actions
  • Backends & APIs — FastAPI, Django, and NestJS, async and fully typed
  • Evals, guardrails & monitoring — so your AI behaves in production, not just in the demo

Why teams choose Kortex Labs

You work directly with the senior engineer building your product — no juniors learning on your budget, no account-manager wall. We scope the simplest architecture that solves the problem, quote a fixed range up front, and hand over 100% of the source code and IP. We've shipped real production systems: large-scale data pipelines across 27 countries, real-time event platforms, and voice-first AI products.

Outsourcing AI development without losing control

The usual risks of outsourcing AI work are a senior person on the sales call and juniors on the build, an hourly bill with no ceiling, and a handover that is a ZIP file. Here the scope and price are agreed in writing before work starts, the person you talk to writes the code, and the repository, documentation and runbook are yours at the end. If you are still choosing between options, read freelance AI developer vs agency vs in-house, fixed price vs hourly AI development, and the AI software handover checklist.

How much do AI development services cost?

It depends on scope, but most projects start in the $8,000–$30,000 range for a focused build, with larger platforms going higher. We give a fixed quote after a free scoping call. See the full breakdown in how much it costs to build an AI app, or get a range in two minutes with the AI development cost calculator.

Frequently asked questions

Do you work with remote / international clients?

Yes — we're remote-first and work with founders and teams worldwide, with overlap across US, EU, and APAC time zones.

Who owns the code?

You do. 100% of the source and IP is yours on delivery, with clean repos and a deployment runbook.

How do I get started?

Tell us what you're building via the contact form and you'll get a free, fixed-scope quote within 24 hours.

Related services: AI MVP development · AI chatbot development · data pipeline services.