AI chatbots have become a significant focus for both major tech companies and small research teams, leading to a landscape filled with diverse options beyond the well-known ChatGPT, which utilizes the GPT-4 model for natural language processing. Other notable chatbots include Claude, which excels in maintaining long conversation memory, Microsoft Bing AI, which integrates with the Bing search engine for real-time, contextual answers, and Google Gemini, which is optimized for users in the Google ecosystem. Meta's LLaMA 2 offers an open licensing model, making it widely accessible, while HuggingChat presents an open-source platform for developers. Poe enables diverse conversational interactions by harnessing multiple models, and Perplexity AI specializes in deep internet inquiries. Jasper AI and Chatsonic focus on content creation, with the latter offering real-time data access and speech-to-text functionality. The article also provides a guide on building a custom OpenAI assistant using n8n, a workflow automation tool, without requiring programming skills, allowing users to leverage specific documents as a knowledge base for tailored assistant interactions.