I will build a custom ai chatbot or assistant with python and llms


About this gig
Need an AI assistant that answers your customers, your team or your users automatically, using your own data?
I build custom AI chatbots with Python, using OpenAI or Anthropic models. I currently work as a backend developer, where I built an AI assistant that queries a company database and answers questions in natural language.
What I can build:
- Chatbots that answer from your documents, FAQs or database (RAG)
- Assistants integrated with your website, WhatsApp or internal systems
- REST APIs (FastAPI) so the chatbot connects to anything
- Handoff to a human agent when needed
What you get:
- Clean, documented and tested code
- Setup instructions and support after delivery
Please message me before ordering so we can confirm the scope and pick the right package.
Get to know Pedro Fabrin
Backend Developer, Python, FastAPI and AI LLM Integrations
- FromBrazil
- Member sinceSep 2026
Languages
Portuguese, English, Italian
FAQ
Do I need to pay for the AI model separately?
Yes. The OpenAI or Anthropic API costs are billed to your own account. I'll help you set it up and estimate the monthly cost.
Can the chatbot answer based on my own documents?
Yes. With RAG (Standard and Premium), the chatbot answers from your PDFs, website content, FAQs or database, without making things up.
Will I receive the source code?
Yes. All packages include the full source code with setup instructions, so you own everything.
Can you connect the chatbot to WhatsApp?
Yes, through the official WhatsApp Business API (Premium package). You'll need a Meta Business account, and I'll guide you through it

