How much does GPT Development cost?

GPT Development chatbots start from €8,000. API integrations range from €8,000–€25,000. MVP Sprints from €18,000 (4 weeks). All at fixed prices.

Can GPT Development be GDPR-compliant?

Yes. We implement GDPR-compliant GPT Development solutions with data encryption and anonymization.

Can GPT work with our internal data?

Yes, via RAG (Retrieval-Augmented Generation). Your data is indexed in vector databases and provided to GPT as context.

GPT vs. Claude — which is better?

GPT excels at general tasks. Claude excels at long texts and precise analyses. We advise you during GPT Development on which model fits best.

How quickly can a GPT Development project start?

After the free consultation, a prototype can be ready in 1–2 weeks. Full MVPs are delivered in 4 weeks.

GPT Development Experts

GPT Development

Professional GPT Development from Context Studios Berlin. We integrate OpenAI models into your business through expert GPT Development — from chatbots and document analysis to intelligent automation. GPT Development projects start at €8,000 with fixed pricing.

AI-Native since 2024Fixed PricesFull Code OwnershipGDPR-compliant

All AI Models

What Is GPT Development?

GPT Development is the process of building custom applications powered by OpenAI GPT models. Context Studios offers professional GPT Development that covers chatbots, document analysis, and business automation. Our GPT Development expertise spans the full OpenAI ecosystem including function calling, assistants API, and fine-tuning. Beyond GPT Development with OpenAI, we also work with Claude, Gemini, and open-source alternatives like Llama 4.

GPT Development Services

Comprehensive GPT Development for your business processes.

GPT Chatbots

Intelligent chatbots powered by GPT for customer service, support, and sales — available 24/7. GPT Development chatbot projects start from €8,000.

Document Analysis

Automatic extraction and summarization of contracts, reports, and emails. A core GPT Development use case that saves hours of manual work.

GPT API Integration

Seamless integration of the OpenAI API into your existing systems. RESTful endpoints, streaming, and function calling.

Business Process Automation

Workflow automation with GPT models. Email processing, data extraction, content generation through intelligent GPT Development.

GPT + RAG

GPT with access to your enterprise data. RAG pipelines for precise, context-aware answers from your own knowledge base.

Secure GPT Deployment

GDPR-compliant GPT Development with content filtering, data encryption, and access controls for production environments.

GPT Development Process

Consultation

Day 1

Free initial consultation. We assess your GPT Development requirements and identify the best approach.

Proposal & Planning

Day 2–3

Detailed feature breakdown, fixed-price proposal, technical architecture plan, and weekly milestones.

AI-Accelerated Development

Weeks 1–4

Agile GPT Development with weekly demos. Working MVP in 4 weeks with production-ready code.

Launch & Support

Week 4+

Production deployment with complete documentation. Includes 2 weeks of priority support.

GPT Development FAQ

We currently work with GPT-5.2 from OpenAI. Depending on the use case, we also recommend Claude or Gemini 3 as alternatives within our GPT Development consulting.

Start Your GPT Development Project

Free initial consultation for your GPT Development requirements.