Pi

A friendly personal AI for talking things through

Pi is a conversational personal AI built to help you think things through, prepare for a tough conversation, or plan your day in a supportive tone. It is free to sign up, and Pi itself reminds users to double-check important information.

Available on

Web

Pricing

Free (sign up for free on pi.ai); no paid plan listed

Free tier available

Free pricing

Price checked Oct 18, 2026

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