ChatGPT is an AI assistant that can be accessed through popular messaging apps like Telegram, LINE, and Viber. It can answer questions and provide information on any topic, give personalized recommendations, help with language translation, and more. ChatGPT also has a variety of personas that users can switch between, such as a Chef, Motivational Coach, Poet, Rapper, Social Media Manager, Stand-up Comedian, Storyteller, Personal Trainer, and Travel Planner. ChatGPT also remembers conversation history for a few hours, so users can pick up where they left off. It can also be used in Telegram groups of up to 50 members. There is a free trial period, after which there is a $10/month subscription fee.