--- type: Landing Page title: LLM Development description: "LLM development from Context Studios Berlin. Claude, GPT-5.2, and Gemini 3 integration for your business. ✓ Fixed Prices ✓ AI-Native ✓ GDPR. Professional llm development from Context Studios Berlin." resource: "https://www.contextstudios.ai/llm-development" language: en timestamp: "2026-06-13T08:43:17.388Z" --- # LLM Development Professional LLM development from Context Studios. We integrate Claude Sonnet 4.6/Opus 4.6, GPT-5.3, Gemini 3, and open-source models into your business processes — custom-built and production-ready. LLM Development — Context Studios offers professional LLM development for enterprises. The team integrates leading language models like Claude Sonnet 4.6/Opus 4.6, GPT-5.3, Gemini 3, Llama 4, and Mistral Large into custom applications as part of llm development. From prompt engineering to RAG systems to fine-tuning — all projects are delivered at fixed prices from 18,000 euros. Entity: LLM Development Frameworks: Convex, Hugging Face Models: Claude, GPT-5.3, Gemini 3, Llama 4, Mistral Large Pricing: Fixed prices from 18,000 euros Provider: Context Studios, Berlin ## Our LLM Development Services From model selection to production integration. ### Model Selection & Architecture We select the optimal LLM for your use case: Claude for precision, GPT-5.3 for versatility, Gemini 3 for multimodal tasks. ### Prompt Engineering Professional prompt design for consistent, precise results. As part of llm development, we deliver we deliver system prompts, chain-of-thought, and few-shot strategies. ### RAG Systems Retrieval-Augmented Generation with Pinecone and Qdrant. LLMs that access your enterprise data. ### Fine-Tuning Customization of language models to your specific requirements. Domain-specific optimization for higher accuracy. ### API Integration Seamless integration of LLMs into your existing systems via APIs. RESTful endpoints for your applications. ### Security & Compliance GDPR-compliant LLM implementations. Content filtering, hallucination control, and audit logging. ## LLM Development Process ### Consultation Free initial consultation via video call. We understand your business, identify AI opportunities, and provide an initial assessment of feasibility and timeline. ### Proposal & Planning Detailed feature breakdown, fixed-price proposal, technical architecture plan, and weekly milestones. ### AI-Accelerated Development Agile development with weekly demos. Working MVP in 4 weeks with production-ready code and automated tests. ### Launch & Support Production deployment with complete documentation. Includes 2 weeks of priority support after go-live. ## LLM Development FAQ Q: Which LLM is best for my project? A: It depends on the use case. Claude Sonnet 4.6/Opus 4.6 excels at precise, long texts. GPT-5.3 is versatile. Gemini 3 is strong for multimodal tasks. Llama 4 and Mistral Large offer open-source alternatives. We advise you for free. Q: How much does LLM development cost? A: MVP Sprints start from 18,000 euros (4 weeks). An LLM integration into an existing system typically costs 8,000-25,000 euros via our API development service. Q: How does RAG work with an LLM? A: RAG (Retrieval-Augmented Generation) connects an LLM with your enterprise data. Documents are indexed in vector databases like Pinecone or Qdrant and provided as context for queries. Q: Can LLMs be customized to our data? A: Yes, through fine-tuning or RAG. Fine-tuning adapts the model itself, RAG extends it with your knowledge base. Both approaches can be combined. Q: How do you ensure LLM output quality? A: Through structured prompt engineering, output validation, hallucination detection, and automated testing. We also implement content filtering and guardrails. Q: Is GDPR-compliant LLM usage possible? A: Yes. We implement GDPR-compliant LLM solutions with data encryption, anonymization, and fully private deployments on request. ## LLM Development for Your Business Free initial consultation — we find the right language model for your use case.