
Pi by Inflection
Inflection AI's consumer chatbot focused on empathy and personality. Microsoft acquired Mustafa Suleyman in 2024. Pi has 6M+ monthly users.

Acquired Pi by Inflection
Acquired · March 2024
Pi was Inflection AI's consumer chatbot — pitched as a kind, emotionally intelligent companion and backed by a ~$1.5B valuation. In March 2024 Microsoft hired founders Mustafa Suleyman and Karen Simonyan plus most of the staff and licensed Inflection's models, a "reverse acquihire" that hollowed out the company. Inflection pivoted to enterprise and the consumer Pi was effectively sunset.
Acquired by Microsoft.
Last known pricing: Free
Is Pi by Inflection shut down?
Effectively, yes. Pi by Inflection was acquired by Microsoft in Mar 2024 and the standalone product was sunset. Its record is preserved in the ToolDirectory.AI graveyard, our hand-reviewed registry of AI tools that shut down or were acquired.
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Overview
Pi by Inflection: Empathetic AI Companion
Pi by Inflection is Empathetic, personality-driven AI chatbot. Pi was the first major consumer chatbot designed around emotional intelligence rather than raw capability. Even after the Microsoft team acquisition, Pi remains a unique offering for users who want personality over feature checklists.
Key Features
- Empathetic, personality-driven AI chatbot
- Founded by DeepMind co-founder Mustafa Suleyman
- Microsoft acquired Inflection's team in March 2024
- Suleyman now runs Microsoft AI as CEO
- Pi continues operating with millions of monthly users
Ideal Use Case
Consumers wanting an AI conversation partner that feels warmer and more emotionally attuned than ChatGPT — research, journaling, decision-making, brainstorming with a personality.
Why Use Pi by Inflection
Pi was the first major consumer chatbot designed around emotional intelligence rather than raw capability. Even after the Microsoft team acquisition, Pi remains a unique offering for users who want personality over feature checklists.
FAQ
Q: Microsoft acquisition? A: Microsoft hired most of Inflection's team in March 2024 (~$650M deal). Pi product continues.
Q: Mustafa Suleyman? A: Now CEO of Microsoft AI; co-founded DeepMind originally.
tl;dr
Empathetic AI companion from Inflection. Microsoft acqui-hired team. Mustafa Suleyman runs Microsoft AI.
Related
Looking for more options? Browse the Productivity directory or read our best AI productivity tools listicle. Pi by Inflection is also tracked on Crunchbase.
Why Use Pi by Inflection



