AI-Powered Telegram Chatbot Development

I am looking for an experienced AI chatbot developer to create a custom intelligent chatbot for Telegram. The bot should be capable of understanding natural language, responding intelligently, and integrating with Telegram’s API for seamless user interaction.

Key Requirements:

Develop and deploy an AI-powered Telegram chatbot.
Use OpenAI API (GPT-4/5) or similar NLP models for conversational intelligence.
Implement context awareness (the bot should remember recent messages within a conversation).
Integrate with Telegram Bot API using Python or Node.js.
Support custom commands, such as /help, /start, and admin commands.
Add message moderation or filter (optional).
Include logging system for message tracking (MongoDB, PostgreSQL, or Firebase preferred).
Ability to handle multi-user sessions efficiently.
(Optional) Add voice message processing or text-to-speech (TTS) features.

Deliverables:

Fully functional Telegram bot with AI chat capability
Source code with clear documentation
Installation and deployment guide
Optional: Admin panel (web-based) for monitoring and managing users/conversations

Please include:

To prevent bot, please start "chatbot" in your bid.
Examples of previous Telegram bots or AI chat projects
Your preferred tech stack
Estimated timeline and cost