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AI chatbots that answer from your documents and show sources. AI chatbot development (RAG) for organisations: assistants that answer from your documents with citations, on Azure OpenAI, OpenAI or local models you host.
Our AI chatbot development work produces assistants that answer questions from your own documents, policies and manuals, and show which source each answer came from. Documents are cleaned, split and indexed in Azure AI Search or Qdrant; the assistant retrieves the relevant passages and a language model writes the answer from them. We run it on Azure OpenAI, OpenAI or local models on your servers, respect who may see what, and test answer quality against real questions before anyone relies on it.
Why teams ask us for a knowledge assistant. Answers are buried in documents Staff spend time searching SharePoint, drives and PDFs, or ask the one colleague who knows where things are.
The prototype gave confident wrong answers A quick demo over a few PDFs worked in the meeting, then made things up when real users asked real questions.
Data cannot go just anywhere Documents are confidential or must stay in a region, so a public chatbot or a browser plug-in is not an option.
Everyone sees everything An early build ignored permissions, so HR or finance content could surface in answers for people who should never see it.
What we build and set up. Document ingestion Extraction from PDF, Word, slides and web pages, with OCR for scanned files, cleanup of headers and footers, and structure-aware chunking.
Search and retrieval Hybrid keyword and vector search in Azure AI Search or Qdrant, with metadata filters and re-ranking so the model sees a few good passages, not many weak ones.
Grounded answers with citations Prompts that tell the model to answer only from retrieved text, link each answer to its source, and say so when the documents do not cover the question.
Permission-aware results Access rules applied at retrieval time from document metadata or groups, so users only get answers from content they are allowed to read.
Chat interface and API A web chat in Angular or React with streamed responses, or an API your existing portal or intranet calls, usually behind a FastAPI backend.
Content sync Scheduled or event-driven re-indexing when documents change, so answers do not drift away from the current version of a policy.
Evaluation and logging A test set of real questions with expected sources, scored before each release, plus logs of questions, answers and feedback to find gaps.
Usage controls Rate limits, token budgets per request and usage dashboards, so running costs stay visible and predictable.
Engagement options Pilot assistant A fixed-scope build over one well-defined document set, to prove answer quality before a wider rollout.
Review of sample documents and 30 to 50 real questions Ingestion, retrieval and chat interface Evaluation report against your questions Deployment to your cloud account or server Production assistant A full build for an assistant staff or customers will use every day, integrated with your systems.
Several sources with scheduled sync Single sign-on and permission-aware retrieval Embedding in your portal, intranet or app Monitoring, logging and hand-over documentation Run and improve A monthly retainer once the assistant is live, for teams that want it kept accurate and up to date.
Review of unanswered and low-rated questions Retrieval and prompt tuning Model and dependency upgrades Coverage hours and response times agreed in the retainer How it works Questions and documents You share a list of real questions and where the answers live. We check document quality, formats and access rules.
Architecture and proposal We choose the model provider, search service and hosting against your data constraints, then send a fixed-scope proposal.
Build on staging We work in two-week increments. You test the assistant on staging and we measure it against your question set each time.
Launch and hand over We deploy to your accounts with monitoring in place and hand over code, prompts, index configuration and documentation.
Why Infigini We have shipped this before Our medical and enterprise knowledge assistants run RAG on Azure OpenAI and Azure AI Search, with FastAPI backends and Angular interfaces.
We also run the infrastructure The same team handles hosting, NGINX, backups and monitoring, so the assistant is deployed and operated properly, not left as a demo.
Model choice stays open We build against OpenAI-compatible APIs, so switching between Azure OpenAI, OpenAI and a local model is mostly configuration, followed by a re-run of your test questions.
You own everything Source code, prompts, indexes and cloud resources sit in your accounts from the start. Nothing depends on a platform of ours.
Technologies: Azure OpenAI, OpenAI, Azure AI Search, Qdrant, LM Studio, FastAPI, Angular, React, PostgreSQL, Redis, Docker, NGINX
Related projects Medical Knowledge Assistant — A conversational assistant that answers from custom knowledge bases hosted on Azure.
Enterprise Knowledge Assistant — A second RAG assistant for conversations over private knowledge bases on Azure Cloud.
TechLogHub — A platform for discovering products, tracking releases and exploring the open-source projects shaping the industry.
Frequently asked questions What is a RAG chatbot and how is it different from ChatGPT? RAG stands for retrieval-augmented generation. Before answering, the assistant searches your own documents, passes the most relevant passages to the language model and asks it to answer from those passages only. A general chatbot answers mainly from what it learned in training. A RAG assistant answers from your current policies and manuals, can show the source, and can say when the documents do not cover a question.
How do you stop the chatbot from making up answers? We cannot make a language model perfect, but we reduce the risk in layers. Retrieval is tuned so the right passages are found, the prompt restricts answers to that text, every answer cites its sources, and the assistant is told to decline when nothing relevant is found. We then test against a set of your real questions and review failures before launch and after each change.
Is our data used to train OpenAI's models? Under OpenAI's and Microsoft's published terms for their APIs, prompts and outputs sent through the OpenAI API or Azure OpenAI are not used to train their models by default, though both may keep data for a limited period for abuse monitoring. Azure OpenAI also lets you choose the deployment region. If documents must not leave your servers at all, we can run an open-weight model locally instead. We explain the trade-offs in writing so your team can decide.
Can the chatbot run on our own servers without a cloud AI provider? Yes. Open-weight models can be served on your own hardware behind an OpenAI-compatible API, using LM Studio for trials or a server such as vLLM for production, with Qdrant for search, so nothing leaves your network. Local models need a suitable GPU or a capable workstation for good response times, and smaller models are weaker at long or complex answers. We usually test a local model against your question set before recommending it.
Which documents and sources can it answer from? PDF, Word, PowerPoint, plain text, HTML pages and wiki or CMS content are the common ones. Scanned files need OCR, and spreadsheets or database records often need a different approach from text retrieval. We can sync from shared drives, SharePoint, a CMS or a database on a schedule. A sample of your documents tells us quickly what extra work is needed.
How much does AI chatbot development cost? The build is quoted at a fixed price after we have seen sample documents and your questions. The main drivers are the number and quality of sources, how often they change, permission rules, integrations such as single sign-on, and how much testing a wrong answer justifies. Running costs are separate: model usage per token, hosting and search. We estimate both before you commit.
How long does it take to build a knowledge assistant? A pilot over one clean document set is a focused piece of work, usually in the two to six week range of our other focused integrations. A production assistant with several sources, sync, single sign-on and permission rules takes longer. We deliver in two-week increments on staging, so you are testing real answers from early in the project.
Can you add a chatbot to our existing website, portal or app? Yes. We expose the assistant as an API and add a chat component to your existing Angular, React or Next.js application, or embed a standalone widget. It can use your current login so answers respect each user's permissions. If you already have an internal tool or intranet, the assistant usually fits there better than in a separate app.
Further reading AI customer support chatbot: what it takes to build one that works
How to evaluate a RAG assistant before launch
RAG on Azure OpenAI: notes from two knowledge assistants
Using local LLMs with LM Studio during development
Scoping a company knowledge-base chatbot: what drives the cost
Chunking documents for RAG: what worked on real knowledge bases
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