# Nxtr — AI Development Company > Nxtr is an AI engineering company building from Pakistan for founders and teams worldwide. Services include RAG systems, AI agents, model fine-tuning, LLM integration, and digital product development. ## Company - Founded: 2023 - Location: Pakistan; serving clients worldwide - Contact: hello@nxtr.co - Project scope, pricing, and timelines are agreed after discovery. ## Services - [RAG development services](https://nxtr.dev/services/rag-development): Nxtr builds retrieval-augmented generation systems that connect language models to your business knowledge. We design ingestion, search, permissions, citations, and evaluation around the questions your users need answered. - [AI agent development services](https://nxtr.dev/services/ai-agent-development): Nxtr builds AI agents that use tools and coordinate business workflows. We define what an agent can do, where people must approve actions, and how success is measured before connecting it to production systems. - [Model fine-tuning & custom AI development](https://nxtr.dev/services/model-fine-tuning): Nxtr helps teams adapt AI models to specific tasks through dataset preparation, fine-tuning, and evaluation. We first compare prompting and retrieval baselines so training addresses a demonstrated performance gap. ## Work - [CorpusIQ](https://nxtr.dev/work#corpus): Business knowledge and MCP integrations. Nxtr reports 300+ users in its first month and acceptance in the ChatGPT and Azure marketplaces. - [Disoriti](https://nxtr.dev/work#disoriti): Generative AI creative platform. - [QIS](https://nxtr.dev/work#qis): Healthcare knowledge and AI review platform currently in development. Public preview uses synthetic data. ## Company and contact - [About Nxtr](https://nxtr.dev/about) - [Contact the team](https://nxtr.dev/contact) ## Engineering articles - [What is RAG? Complete Guide to Retrieval-Augmented Generation (2025)](https://nxtr.dev/blog/what-is-rag) - [RAG vs Fine-Tuning: Which Does Your AI Application Need?](https://nxtr.dev/blog/rag-vs-fine-tuning) - [How to Build an AI Agent: Complete Developer Guide 2025](https://nxtr.dev/blog/how-to-build-ai-agent) - [AI Development Cost in 2025: RAG, Agents & LLMs Pricing Guide](https://nxtr.dev/blog/ai-development-cost) - [Best Vector Databases for AI Apps: Pinecone vs Weaviate vs Qdrant vs pgvector (2025)](https://nxtr.dev/blog/best-vector-databases) - [How to Hire an AI Development Company: 10 Questions to Ask Before You Sign](https://nxtr.dev/blog/hire-ai-development-company) ## Optional - [Full content](https://nxtr.dev/llms-full.txt) - [RSS feed](https://nxtr.dev/feed.xml) - [Sitemap](https://nxtr.dev/sitemap.xml)