Most AI assistants are built for English speakers. I wanted to change that.
RexiO is a premium AI assistant built specifically for Gen Z users in Bangladesh. It understands Bengali and Banglish naturally, searches the web in real-time, and builds a personal knowledge panel for every user — all in a fast, modern interface.
What RexiO Can Do
- Real-time Web Search — RexiO searches the web live and summarizes results directly in the chat
- Personal Knowledge Panel — RexiO builds a persistent knowledge base for each user, learning preferences and context over time to deliver increasingly personalized responses
- Voice Chat — Full real-time voice interaction
- Live Weather — Ask about weather anywhere and get instant results
- Image Search — Ask for images and RexiO finds and displays them inline
- Cross-platform — Available on Android (native app) and as a PWA for desktop and iOS
- Scheduled Tasks (Coming Soon) — Automate recurring tasks and set scheduled prompts directly inside the chat
The Challenge
Building an AI assistant for Bangladeshi users is not just a translation problem. Users naturally mix Bengali and English in the same sentence — called Banglish. The system has to understand intent, not just language. That required building a custom multi-tier intent classification pipeline from scratch.
On top of that, the backend had to handle real-time streaming responses, live web search, personalized memory, and voice — all simultaneously, reliably, on production-grade infrastructure.
Architecture Decisions
The backend is built as a microservice architecture with three isolated services — each chosen for what it does best.
The public gateway prioritizes zero-latency streaming with no buffering on SSE connections. The core engine handles all stateful business logic, real-time sessions, authentication, and payments. The AI layer runs as a completely isolated service for agent workflows, web scraping, intent classification, and multi-agent coordination.
This separation means each layer can be scaled, updated, or replaced independently without touching the others.
The personal knowledge panel runs as an asynchronous background system — it learns from every conversation without adding any latency to the main chat response.
What's Next
RexiO is currently in development and launching soon. The goal is simple — make cutting-edge AI feel native for millions of Bangla-speaking users who deserve better than a translated chatbot.
Check it out at rexio.pro.bd
Built by SpritEX — a Bangladesh-based AI company.