I built an AI chatbot that talks like a real fitness expert. It has personality, remembers your conversations, and gives personalized workout advice. People love chatting with it because it feels human, not robotic.
I used HuggingFace transformers with custom personality layers in PyTorch. The React frontend talks to a Python backend via APIs. All conversations are saved in Supabase so the AI remembers you.
Users engage 30% more than with generic fitness bots. They spend 12 minutes per session on average, and 65% come back for more conversations. People actually enjoy talking to it!