Meta AI is the most accessible AI assistant in the world by distribution: it sits inside apps that 3 billion people already use. If you just want a capable chatbot without setting up an account, downloading a new app, or paying anything, WhatsApp or Messenger gets you there immediately.
The capability level is competent for everyday tasks: summarizing articles, drafting short messages, answering factual questions, generating images. It is not the right tool for deep research, long-document analysis, or complex coding. But for users who are just starting with conversational AI or want something zero-friction and free, Meta AI removes every barrier to entry.