Pi

Overview

Pi is a personal AI assistant from Inflection AI, designed for empathetic, conversational, back-and-forth chat. It emphasizes a supportive tone and natural voice conversations rather than task automation. Pi is free to use on the web and mobile apps.

Key features

• Conversational assistant tuned for a supportive tone
• Natural voice conversations
• Available on web, iOS, and Android
• Focus on everyday reflection and advice

Use cases

• Talking through ideas and decisions
• Casual, supportive everyday conversation
• Practicing how to phrase difficult messages

Pricing

Pi is free to use across web and mobile apps.

Frequently asked questions

Who develops Pi?

Pi is developed by Inflection AI, a US-based AI company.

What is Pi designed for?

Pi is designed for empathetic, supportive conversation rather than task automation.

Is Pi free?

Yes. Pi is free to use on the web and on mobile apps.

Similar products

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• Character.AI — Platform for chatting with user-created AI characters and personalities.
• ChatGLM — Zhipu AI's conversational assistant (Qingyan) built on the GLM family of models.
• ChatGPT — Conversational AI assistant from OpenAI, currently powered by the GPT-6 Astra model family, with chat, coding, agents, and multimodal features.
• ChatGPT Atlas — Web browser from OpenAI with ChatGPT built in for summarizing pages, answering questions, and completing tasks in an agent mode.
• Claude — AI assistant from Anthropic designed for helpful, harmless, and honest dialogue, with the Claude Fable and Mythos 5.1 model family for long-document reasoning and coding.

All Pi alternatives → · All AI Assistants products →

Sources

• Official website ↗
• Inflection AI ↗

This record was last reviewed on 2026-07-29.

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