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Pi

Built for supportive conversation, then deprioritized after Microsoft's 2024 deal

4.2 Chatbots
4.2 Very good 4.2

Bottom line: Pi is a strong chatbots tool, best known for built for supportive, everyday conversation rather than task completion. It has a free plan.

Distinct focus on supportive conversation rather than task-oriented chat Consumer product development has been deprioritized since 2024
Reviewed by Challenging Voice Editorial · Updated Jul 2026 How we rate
PricingFree
Free planYes
CompanyInflection AI
PlatformsiOS, Web
Best forChatbots
Founded2022
Visits48
Last reviewedJun 2026
UpdatedJul 2026
Ask AI about Pi ChatGPT Claude Perplexity

Overview

Pi launched in 2022 from Inflection AI, built around a different goal than most chatbots on this list: everyday, emotionally supportive conversation rather than task completion, research, or coding, positioning itself closer to a thoughtful conversational companion than a productivity assistant.

That direction changed substantially in March 2024, when Microsoft licensed Inflection's technology for $650 million and hired nearly the entire team, including co-founder Mustafa Suleyman, who became CEO of Microsoft's own consumer AI division. Inflection AI continued to exist under new leadership but shifted its business toward building custom AI for enterprise customers rather than growing Pi as a consumer product, and Pi's underlying technology has since been positioned partly as a foundation for business customer-service bots instead.

Pi remains free and accessible for existing conversational use. For anyone specifically interested in Pi as a supportive conversational assistant, it's worth checking directly for current features and development activity given the company's substantial 2024 pivot away from consumer-focused growth toward enterprise work.

Key features

  • Built for supportive, everyday conversation rather than task completion
  • Free to use
  • Underlying technology licensed by Microsoft in a 2024 deal
  • Inflection AI has since shifted toward enterprise AI development
  • Original team, including co-founder Mustafa Suleyman, moved to Microsoft
  • Consumer product development has slowed following the pivot

Screenshots & demo

Pricing

Pi offers a free plan, with paid upgrades for higher limits and more features.

  • Pricing modelFree
  • Starting priceFree
  • Free planYes
Visit Pi

Pricing is provided as a guide. Check the official site for the latest plans.

Pros & cons

Pros

  • Distinct focus on supportive conversation rather than task-oriented chat
  • Free to use with no subscription required
  • Underlying technology proved valuable enough for a major licensing deal

Cons

  • Consumer product development has been deprioritized since 2024
  • Company's strategic focus has shifted away from Pi as a standalone product
  • Long-term future of Pi as an actively developed consumer app is uncertain

How it compares

ToolRatingFreeFromBest known for
Pi (this tool)4.2YesFreeBuilt for supportive, everyday conversation rather than task completion
ChatGPT4.8Yes$20/moBroad, frequently updated GPT model family
Claude4.7Yes$20/moConstitutional AI training approach
Perplexity AI4.6Yes$20/moCitation-first answers with linked, verifiable sources

Our verdict

4.2 / 5 4.2

Pi is a strong chatbots tool, best known for built for supportive, everyday conversation rather than task completion. It offers a free plan.

What makes it different: Pi stands out for built for supportive, everyday conversation rather than task completion.

How we score it
Overall 4.2
Value for money 4.7
Feature depth 4.9
Popularity 4.0
Best for Support teamsResearchersWritersEveryday users

Frequently asked questions

What is Pi?
Pi is a chatbots tool listed in the Challenging Voice directory. Built for supportive conversation, then deprioritized after Microsoft's 2024 deal.
Is Pi free?
Yes, Pi offers a free plan. Paid plans unlock more features and higher usage limits.
What are the best Pi alternatives?
Popular alternatives to Pi include Nova AI App, Vacay, and CustomGPT.ai. Browse them all in the Chatbots category.
Is Pi any good?
Pi scores 4.2 out of 5 based on our editorial review.

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