Productivity · Reviewed June 23, 2026

Pi by Inflection

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

Pricing
Free
Rating
4.84/ 5 · 165 reviews
Last reviewed
June 23, 2026
Channels
Pi by Inflection productivity tool screenshot

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.

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Why Use Pi by Inflection

Rating
4.84
Across 165 verified reviews
Saved
183
By ToolDirectory readers
Pricing
Free
Publisher-listed pricing model
Listed
Since 2026
Continuously re-reviewed by editors
Category
Productivity
Primary listing
Verified by editors during the most recent review · ToolDirectory.AI
Pi by Inflection productivity tool screenshot
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User Reviews

4.84
Out of 5 · 165 ratings
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