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I will build an ai chatbot or llm powered app in python
Yitian X
About this gig
Struggling to build an AI chatbot that actually understands your users? I'll build you a production-ready AI chatbot or LLM app in Python powered by GPT, Claude, or Llama tailored to your business.
What I Offer:
- Custom AI chatbot development (single-turn or multi-turn)
- LLM API integration (OpenAI, Anthropic Claude, open-source models)
- RAG (Retrieval-Augmented Generation) systems with vector databases
- Conversation memory and session management
- FastAPI deployment for production-ready applications
- Prompt engineering and optimization
Tech Stack:
Python, PyTorch, TensorFlow, FastAPI, LangChain, ChromaDB, FAISS, WebSocket, AsyncIO
Why Choose Me:
- MSc in Scientific and Data Intensive Computing from UCL (University College London)
- Real-world experience building and deploying LLM applications
- Clean, well-documented, production-ready code
- Responsive communication and on-time delivery
Whether you need a simple FAQ bot, a context-aware support agent, or a full RAG pipeline with document ingestion I deliver robust solutions tailored to your needs. Let's discuss your project!
Get to know Yitian X
Yitian X
Python Developer specializing in AI, LLM and Machine Learning
- FromChina
- Member sinceMar 2026
Languages
English
AI/ML Engineer with a Master's from UCL in Scientific Computing. I build production-ready AI systems focused on LLM integration and chatbot development.
Highlights: Deployed Llama 3.2 3B with 293ms TTFT and 3.4GB VRAM. Built IoPet, a 14,000+ line Python AI pet with behavior trees and real-time dialogue.
Services: AI chatbots, RAG systems, ML model training, Python automation, LLM API integration (Claude, GPT, open-source).
Stack: Python, PyTorch, TensorFlow, FastAPI, CUDA, AsyncIO, Docker.
UCL MSc (Merit) | First Class BEng | Dean's Scholarship
FAQ
What AI models can you work with?
I work with GPT (OpenAI), Claude (Anthropic), Llama, and other open-source LLMs. I can help you choose the best model based on your budget, performance needs, and data privacy requirements.
Do you provide ongoing support after delivery?
Yes! Each package includes revisions. After delivery, I'm available for bug fixes and questions. For long-term maintenance, we can discuss a custom offer.
Can you integrate the chatbot with my existing website or app?
Yes! I can integrate via API, embed widget, or connect to platforms like Slack, Discord, WhatsApp, and more.
Do you provide the source code?
Absolutely. You'll receive full source code, documentation, and deployment instructions with every package.
What if I need changes after delivery?
Each package includes revision rounds. For ongoing support or new features, we can discuss a custom maintenance plan.
