Pi
Verified Oct 29, 2026 ActiveInflection AI's conversational companion for talking things through, learning, and keeping track of reminders by text or voice.
Listed on EffectHub ·
Pricing
- Pricing model
- 100% Free
No paid plan or price appears on Pi's or Inflection's pages, and the help center has no billing articles; it is offered as a free app. The web app at pi.ai sits behind a bot check, so we read the product through hey.pi.ai and inflection.ai.
Use tool ↗About Pi
Pi is a personal AI from Inflection AI built around supportive, emotionally aware conversation rather than task output. You can vent, think out loud, rehearse a hard conversation, get help with a decision, plan meals or learn about a topic, by typing or by voice. Newer features include reminders and to-dos, a daily brief, language practice, drafting help and shared activities with other people, and Pi keeps a memory of past conversations. It runs on the web and in iOS and Android apps, powered by Inflection's own fine-tuned models.
- API
- Not confirmed
- Last verified
- Oct 29, 2026
Verified sources
- Pi features: emotional conversation, reminders and to-dos, voice, iOS and Android apps; created by Inflection AI, a public benefit corporationhey.pi.ai ↗
- Inflection AI site links Try Pi to pi.ai with iOS and Android apps; Pi powered by Inflection's fine-tuned modelsinflection.ai ↗
- Help center articles on voice, memory, daily brief, language practice, Draft with Pi, activities with peoplehelp.pi.ai ↗
- Terms of Service of Inflection AI, Inc., content licenseinflection.ai ↗
Is Pi legit?
We don’t label tools safe or unsafe. Below are the records we checked ourselves, each with the date we read it.
- TLS certificate
- Issued by Google Trust Services, valid until Dec 23, 2026Seen in our own connection to the site on Oct 29, 2026
- Last checked
- Oct 29, 2026The site answered, but turned our crawler away
- Operated by
- Inflection AI, Inc.Our research, card verified Oct 29, 2026
Pros & cons of Pi
Pi suits people who want a patient, friendly conversation partner for thinking aloud, light learning and daily reminders, at no cost. It is the wrong tool for coding, document work or research with sources, where general assistants do far more.
Pros
- Conversational style tuned for warmth and reflection
- Voice conversation and memory of earlier chats
- Free, with apps for iOS and Android
- Reminders, daily brief and language practice built in
Cons
- Few productivity features compared with general assistants
- No file uploads, integrations or API for the consumer product
- Little public detail on which model versions power it or how often it is updated
Best for
- People who want to talk through feelings or decisions in a calm tone
- Casual learners who like conversational explanations
- Users who want simple reminders and a daily brief from a chat app
Not for
- Professionals who need file analysis, coding or cited research
- Anyone in crisis who needs professional help rather than a chatbot
Watch out: Inflection's terms grant the company a perpetual, sublicensable license to your conversations for operating and improving the service, which matters for an app designed for personal disclosures.
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