Pi
Your kind and curious personal AI
Overview
Pi (Personal Intelligence) by Inflection AI is designed to be a kind, curious, and supportive AI companion. Unlike task-oriented AI assistants, Pi excels at natural conversation, emotional support, brainstorming, and learning. It features a warm conversational style with multiple voice options and focuses on building a genuine rapport with users over time.
Pricing Details
Completely free to use with no usage limits currently.
Latest Model
Inflection 2.5
How to Use Pi
Visit pi.ai or download the Pi app
Start chatting immediately — no signup required
Ask questions, brainstorm, or have a conversation
Choose a voice for spoken interactions
Continue conversations across devices by creating an account
Key Features
Use Cases
The Good & The Bad
Pros
- Completely free with no limits
- Warm and natural conversation style
- Excellent voice interaction
Cons
- Less capable at complex tasks than GPT-4
- Limited tool and plugin capabilities
- No file upload or image analysis
At a Glance
Best For
Users looking for a friendly, conversational AI companion for daily interactions
Free Trial
Completely free to use with no limits
Mobile App
Available on both iOS and Android
API Access
No public API currently available
Team Features
Designed for personal use only
Last Updated
2026-02
Security & Privacy
- Privacy-focused design
- Content safety filters
Supported Languages
Available Platforms
Journey
Pi launched
Pi was released to the public, marking its official debut in the AI landscape.
Latest version
Inflection 2.5
Last reviewed
Our team verified Pi's pricing, features, and capabilities to ensure accuracy.
Pi in Action
Start Using Pi Today
Pi is completely free. Get started in seconds.
Frequently Asked Questions
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