Pi (Personal Intelligence) is a personal AI assistant from Inflection AI, designed for natural, empathetic conversation.
About this product
Pi (Pi.ai) is a personal AI chat assistant from Inflection AI. Rather than an all-purpose Q&A tool like ChatGPT, it is designed as an emotionally supportive digital companion — warm, attentive and emotionally intelligent — great for talking things through, organising your thoughts and practising spoken English.
In 2024 Microsoft hired Inflection AI's core team and licensed its technology. Pi was kept running, and the website and apps still work normally, while Inflection AI shifted its focus to enterprise services.
What Pi is good for
Companion · Beginner
Talk it through
A warm AI companion that listens.
Open pi.ai or the Pi app and sign in
Talk about your day as you would with a friend
Pi keeps the context and keeps the conversation going
Speaking · Beginner
Practise spoken English
Voice chat to practise anytime.
Turn on voice mode in the app
Tell it you want to practise English and your level
Start talking and ask it to correct mistakes
Try asking
Let's practise a job interview in English. Please ask me one question at a time and correct my grammar after each answer.
Getting started
Chat like a friend: share your mood, worries or ideas and Pi follows up.
Voice chat: pick a voice in the app and talk directly — good for speaking practice.
Think things through: have it walk you through a decision or plan step by step.
Tips
Pi is best at conversation and companionship; for research or coding use tools like ChatGPT or Claude.
If you're struggling emotionally, please seek professional help.
[Pi website]
[Pi app]
Sign-in guide
① Open the Pi website (iOS and Android apps are also available).
② Click "Get started" and choose "Continue With Google" — it works like any Google account; see the sign-in guide.
③ To subscribe (top up), provide your account and help us sign in; we'll finish quickly.
How it is delivered
🙋 Manual delivery⏰ Working hours UTC+8 09:00–21:00📧 Sent to your order email, also viewable once on the order page
What AI services does 5buyai.com support? Can I get an invoice?
Accounts, subscriptions and top-ups for ChatGPT, Claude, Midjourney, Gemini, Grok and other major AI tools. Invoices are available for AI orders paid in Chinese yuan (CNY).
How do I receive my order after paying?
Orders are delivered manually: after successful payment, the account or card code is sent to your order email during working hours (9:00–21:00, UTC+8). You can check your order details anytime on the order lookup page by order number, email or browser cache.
What payment methods are supported?
Alipay, WeChat Pay, USDT, and Credit Card payments. Credit card payments require first topping up your balance, and then using the balance to purchase products.
Do I need an account to buy?
No. You can check out as a guest and receive items by email; registering lets you manage orders, balance and invoices in one place.
Are prices shown in CNY?
All prices are listed in Chinese Yuan (¥). When paying with USDT the amount is converted automatically at the live rate.
Is there after-sales support?
After-sales support is available for some products, handled via live chat or the order dispute page. Accounts are virtual products: once delivered, no refunds are given unless there is an after-sales issue. CNY refunds and USD refunds are only made back to the original payment method, and USDT refunds are only made on the BSC network.
I am a business buyer and need to make a bulk purchase. How can I get in touch?
Please click the chat widget at the bottom-right corner to reach us and leave your email or other contact details. We will get back to you as soon as possible.
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Disclaimer
This is an independent third-party platform, not affiliated with, endorsed by, or authorized by any brand mentioned. We do not host any third-party login page and do not collect third-party credentials.
Inflection 2.5 will soon be available by API! Our mission is to create a personal AI for everyone. To accelerate this, we are excited to announce that we are giving everyone access to our best models AND our world-class finetuning tools to be able to create incredible, high EQ