Pi (Inflection AI)

Pi, from Inflection AI, is designed as a personal, supportive, and empathetic AI companion. It excels in natural, flowing conversation with a distinctive, kind personality. Features include multiple voice options for realistic dialogue, proactive memory of conversation history, and a clean mobile/desktop interface. It's aimed at users seeking an AI for casual chat, emotional support, brainstorming, or a friendly sounding board, rather than heavy-duty task completion.

It operates on a free model with potential future premium features. It ranks for its unique focus on emotional intelligence and creating a remarkably human-like conversational experience.