What is Pi?
Pi, short for personal intelligence, is a conversational AI made by Inflection AI. Instead of focusing on coding or long documents, it is designed to be a kind and curious companion: you can think a problem through with it, rehearse a tough conversation, plan your day, or just chat.
You can start talking at pi.ai without an account. Pi asks what to call you and then picks up the conversation from there. Logging in or signing up for free saves your chat history beyond 60 days. Pi has never charged individual users and the site shows no paid plan.
Main Features
- Warm, conversational chat focused on support and advice
- Start chatting straight away without an account
- Free sign-up keeps your history past 60 days
- Helps with planning, decisions and difficult conversations
- Remembers context within a conversation
- Simple, distraction-free web interface
How to Get Started with Pi
- Go to pi.ai
- Tell Pi what to call you
- Type or ask about whatever is on your mind
- Sign up for free if you want to keep your chat history
Pi Pricing
Pi is free to use, with no paid plan shown on the site. A free account saves chat history beyond 60 days.
Who Should Use It?
- People who want a friendly sounding board
- Anyone rehearsing a hard conversation
- Users who find task-focused chatbots too dry
- People planning their day or making decisions
- Curious users exploring different AI personalities
Pi Alternatives
- Character AI: Chat with AI characters and personas for fun or practice.
- Sesame AI: Natural-sounding voice conversations with an AI companion.
- HuggingChat: Chat with open-source AI models from Hugging Face.
Frequently Asked Questions
Is Pi free?
Yes. Pi is free for individual users and the site shows no paid plan.
Do I need an account to use Pi?
No. You can start chatting at pi.ai straight away. A free account keeps your chat history beyond 60 days.
Who makes Pi?
Pi is made by Inflection AI.