You will get a custom AI that answers from your documents with sources

Let a pro handle the details

Buy Generative AI services from Leonardo, priced and ready to go.

Let a pro handle the details

Buy Generative AI services from Leonardo, priced and ready to go.

Project details

Generic AI chatbots make things up. This one answers ONLY from your documents — manuals, policies, contracts, catalogs — and cites exactly where each answer came from.

Your assistant will:
 • Ingest your documents (PDF, Word, spreadsheets) into a searchable knowledge base
 • Answer in natural language, grounded strictly in your content
 • Cite the source (document + section) for every answer, so your team can verify
 • Say "I don't know" instead of inventing, when the answer isn't in the documents
 • Run in YOUR environment — your data never depends on a third-party chatbot service

I've built this architecture professionally, including for sensitive domains (healthcare data with strict privacy compliance) where a wrong answer isn't an option. Same engineering standard here.

Delivered deployed to your cloud or VPS with documentation. AI model of your choice (OpenAI, Claude or others) — I'll recommend based on your content, budget and privacy needs. Optional monthly maintenance available as an add-on.
AI Algorithms
Large Language Model, Multimodal Large Language Model, Transformer Model
AI Applications
AI Chatbot, Conversational AI, Natural Language Generation, Natural Language Understanding, Sentiment Analysis, Text Recognition
AI Development Language
Python
AI Tools
Azure OpenAI, Gradio, Hugging Face, Streamlit
AI Models
BERT, ChatGPT, GPT-4, LLaMA
What's included
Service Tiers Starter
$400
Standard
$750
Advanced
$1,300
Delivery Time 7 days 12 days 18 days
Number of Revisions
123
AI Model Integration
Batch Normalization
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Database Integration
Detailed Code Comments
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Image Upscaling
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MLOps
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Model Deployment
Model Documentation
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Model Monitoring
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Model Testing & Optimization
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Model Tuning
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Natural Language Processing
NLP Tokenization
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Pre-Training
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Prompt Engineering
Setup File
Source Code
Optional add-ons You can add these on the next page.
Additional Revision
+$75
Monthly maintenance & re-ingestion
+$120

Frequently asked questions

Leonardo N.Status: Offline
Leonardo N.Status: Offline
AI Agent & RAG Developer | LangChain, Python, WhatsApp Automation
Londrina, Brazil - 6:25 am local time
Your business has knowledge, data and repetitive workflows. I build the AI agents that put them to work 24/7 and that don't hallucinate, don't break in production, and don't need babysitting.

I'm an AI engineer at the AI lab of a global technology consulting firm, where I build production agent systems for enterprise clients. A few things I've shipped:

- A multi-agent code review system — 8 specialized agents orchestrated with LangGraph, with episodic memory and self-correction (it detects when a fix makes things worse and retries with a new strategy). Running in production.

- A RAG architecture for a health app handling sensitive mother & baby data — strict grounding, anti-hallucination guardrails, human review queue and full privacy compliance.

- An audit agent that takes a checklist and automatically pulls the supporting evidence from corporate databases, cutting days of manual work.

- WhatsApp Business API chatbots and automations for real businesses — not demos.

What you get working with me:

✔ Production thinking from day one: guardrails, testing, fallbacks and monitoring — not a prototype that dies after the demo
✔ Clear communication in fluent English, with honest timelines
✔ A phased work plan with milestones, so you see progress every week

Stack: Python, LangChain, LangGraph, RAG (embeddings + vector databases), FastAPI, PostgreSQL, Docker, GCP, OpenAI/Claude APIs, WhatsApp Business API, Power BI.

Tell me what's

Steps for completing your project

After purchasing the project, send requirements so Leonardo can start the project.

Delivery time starts when Leonardo receives requirements from you.

Leonardo works on your project following the steps below.

Revisions may occur after the delivery date.

Document analysis & design

I review your documents, define the retrieval strategy, and turn your 5 must-answer questions into test cases. You approve before any code is written.

Knowledge base & RAG pipeline

I ingest your documents into a searchable knowledge base and build the retrieval pipeline with strict grounding in your content.

Review the work, release payment, and leave feedback to Leonardo.