Pi
Inflection AI
★ #38 in Conversational AIProduct status: Status not recorded
No lifecycle review is recorded for this listing. Its inclusion in the directory does not confirm current availability; check the vendor before relying on it.
No status check date recorded
Inflection's personal conversational assistant with voice, reminders and editable cross-chat memories; current pricing and account entitlements remain unconfirmed. No lifecycle review is recorded for this listing. Its inclusion in the directory does not confirm current availability; check the vendor before relying on it.
Product preview
Decision notes
Official-document research
Based on the cited documentation. We did not use the product, purchase a plan, or run quality, speed or reliability tests in this review.
Consider it for
- Adults comfortable managing memory, training preferences and output review.
Choose another approach if
- Minors or substituting a chatbot for professional care/advice.
- Confidential business API use or guaranteed deletion of every generated output.
Pricing and conditions
Current terms unconfirmed
A complete current Pi subscription/free-entitlement schedule was not confirmed. The original freemium classification is retained without asserting perpetual free use, a paid amount, currency, tax treatment, region, billing period, seats, limits or overage. Confirm the applicable app/account offer. Carrier data/message and optional third-party costs can be separate; Inflection business API contracts and quotas are not Pi app entitlements.
Code, model and service licensing
Terms require 18+ and provide service access, not source or weight rights. You retain relative input/output rights but grant perpetual, irrevocable, sublicensable service/improvement rights that survive termination; competitor-model use is restricted. Current privacy permits model training with account opt-out and separate voice-emotion controls. Deleted inputs are generally retained at most 15 days, with safety/legal exceptions; outputs are retained indefinitely for the terms' limited purposes. Memory deletion, training opt-out and account deletion are distinct. Business/API processor agreements, third-party content rights and exclusive/copyrightable output are separate matters.
Basis and limits of the recorded score
The existing 4.4 score is retained; its original scoring evidence is unavailable. This documentation review did not measure performance or compare products and did not re-score it.
Overview
Pi's current public pages describe personal conversation, speaking aloud, reminders and learning prompts. Its September 2026 memory guide describes cross-chat details that can be added, changed or deleted; feedback alone does not delete a memory. This is the personal hosted application, not the separately contracted Inflection business API or downloadable weights. Conversational style does not establish therapeutic effectiveness, accurate emotion inference or reliable decision-making.
Sources
The factual claims in this review were read from the pages below. Each date is when an editor last opened the source, not when the product changed.
- Vendor site Checked 2026-10-15
- Vendor documentation Checked 2026-10-15
- Vendor documentation Checked 2026-10-15
- Vendor documentation Checked 2026-10-15
Pros / Cons
Pros
- Voice and reminder workflows are publicly described.
- Users have documented memory editing and training controls.
Cons
- Current subscription terms and quotas were not confirmed.
- Outputs can be retained indefinitely for specified purposes; memory and data deletion differ.
Who it's for
Brainstorm and reflect with independent fact-checking.
Manage low-stakes reminders and review saved memory.
Bottom line
Consider Pi for personal conversation after reviewing its adult-use and retention terms; confirm account access and charges rather than assuming permanent free or private use.
Key Features
Tags
Frequently asked questions
Is Pi currently available?
No lifecycle review is recorded for this listing. Its inclusion in the directory does not confirm current availability; check the vendor before relying on it.
What is Pi?
Pi is a Conversational AI tool developed by Inflection AI. Inflection's personal conversational assistant with voice, reminders and editable cross-chat memories; current pricing and account entitlements remain unconfirmed.
What costs and terms should I check for Pi?
A complete current Pi subscription/free-entitlement schedule was not confirmed. The original freemium classification is retained without asserting perpetual free use, a paid amount, currency, tax treatment, region, billing period, seats, limits or overage. Confirm the applicable app/account offer. Carrier data/message and optional third-party costs can be separate; Inflection business API contracts and quotas are not Pi app entitlements.
Is Pi open source?
Terms require 18+ and provide service access, not source or weight rights. You retain relative input/output rights but grant perpetual, irrevocable, sublicensable service/improvement rights that survive termination; competitor-model use is restricted. Current privacy permits model training with account opt-out and separate voice-emotion controls. Deleted inputs are generally retained at most 15 days, with safety/legal exceptions; outputs are retained indefinitely for the terms' limited purposes. Memory deletion, training opt-out and account deletion are distinct. Business/API processor agreements, third-party content rights and exclusive/copyrightable output are separate matters.
What are the best alternatives to Pi?
Notable Conversational AI alternatives include ChatGPT, Claude, Gemini. Browse all 67 tools in our Conversational AI category for a full overview.
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Basic Info
- Pricing
- Freemium
A complete current Pi subscription/free-entitlement schedule was not confirmed. The original freemium classification is retained without asserting perpetual free use, a paid amount, currency, tax treatment, region, billing period, seats, limits or overage. Confirm the applicable app/account offer. Carrier data/message and optional third-party costs can be separate; Inflection business API contracts and quotas are not Pi app entitlements.
- Editorial score
- ★ 4.4 / 5 How we score
- Platforms
- WebiOSAndroid
- Last verified
- Not recorded
