5 tools · 1 key · $10/mo
Five browser tools.
One premium key.
PI Labs builds small, fast Chrome extensions that live inside the tools you already use — ChatGPT, Claude, Gemini, X. One subscription turns on every premium feature in all of them.
Sign in with Google · Cancel any time · Card or USDC
The instruments
Six tools, built one problem at a time.
Each one does a single job inside a page you were already looking at. No dashboard to visit, no tab to keep open.
PI Prompts
v1.8.2Your prompt library, one keystroke away inside any chat UI. Synced through your own Google Drive.
9 LLM sitesLive
PI Fix Grammar
v1.0.6Fixes grammar in any text field on any site. On-device Gemini Nano first, cloud only as fallback.
Every siteLive
PI Summarize
v2.2.2Right-click any selection or page for a summary through ChatGPT, Gemini or Claude.
Every siteLive
PI Answer
v1.0.10Drafts a reply to any post on X in your voice — from scratch, or finishing the line you half-typed.
x.comPremium
Aviary
v0.12.3Turns your daily X output into a visible flight: quests, streaks, and a Super Friends circle you never miss.
x.comLive
PI Agent
v1.0.2Scheduled agents that watch a page and act while you are somewhere else.
Every siteIn the lab
The key
What ten dollars a month turns on.
Premium is not a separate product. It is a switch inside each tool you already installed.
PI Prompts- Unlimited library size, cross-device Drive sync, curated prompt packs.
PI Fix Grammar- Cloud fallback without bringing your own API key, plus custom rewrite styles.
PI Summarize- Long-page summaries past the free length cap, and saved summary history.
PI Answer- The whole extension. It never goes to the Web Store — premium members install it directly.
Aviary- Super Friends past the first five, the full badge shelf, and journey cinematics.
PI Agent- Included the day it ships. That is the point of one key.
One key. Every tool. Including the ones not built yet.
How it works
Three steps, and none of them involve a licence key.
- 01
Sign in with Google.
The same Google account PI Prompts already uses to sync your library. No new password, no second identity to keep track of.
- 02
Subscribe — $10 a month.
Card, Apple Pay or Google Pay through Dodo Payments, who act as merchant of record and handle VAT. Or pay in USDC through Rendben.
- 03
Every extension unlocks.
They check your account the next time they start. Nothing to paste, no licence key to lose, and it follows you to every machine you sign in on.
The site and the extensions share one Google Cloud identity, so the account is literally the same object in both places. That is why nothing has to be copied between them.
Pricing
Free, forever.
Every extension’s core function works without an account. PI Prompts, PI Fix Grammar, PI Summarize and Aviary are on the Chrome Web Store right now, free, and they stay that way.
Premium is the one thing on this page you pay for. It exists so the tools can keep getting built.
Premium
$10/ month
- Every premium feature in every PI Labs extension
- PI Answer — premium-only, not sold anywhere else
- New extensions included the day they ship
- One Google account, no licence key to paste or lose
- Cancel any time; the free features never switch off
Cancel any time. Card payments run through Dodo Payments, the merchant of record, so VAT is handled and invoiced for you. USDC runs through Rendben.
Lab notes — last five releases
- PI Fix Grammar v1.0.6Never-emoji and no-em-dash enforcement moved after the model answers.
- PI Answer v1.0.10Highlighted text is now treated as a seed idea and expanded in place.
- Aviary v0.12.3Journey cinematics and per-friend engagement streaks.
- PI Summarize v2.2.2Summaries can be routed to Claude alongside ChatGPT and Gemini.
- PI Prompts v1.8.2Qwen, Groq and Mistral joined the supported chat surfaces.
Questions
The six people actually ask.
Do I need an account to use the free features?
No. PI Prompts, PI Fix Grammar, PI Summarize and Aviary install from the Chrome Web Store and do their core job with no account at all. An account only exists so premium can follow you between machines.
Where does my text go?
Wherever possible, nowhere. The grammar and reply tools run on Chrome's built-in on-device model first, so the text never leaves the browser. A cloud model is used only when you turn one on, and the extension tells you which engine answered.
What happens if I cancel?
Premium features switch off at the end of the period you already paid for. Everything free stays exactly as it is, including the prompt library you built and the Drive file it syncs to.
Can I pay in crypto?
Yes. Card, Apple Pay and Google Pay go through Dodo Payments, which is the merchant of record and handles VAT. USDC goes through Rendben. Both give you the same premium account.
Why is PI Answer not on the Chrome Web Store?
It is the one tool built premium-first. Members install it directly from PI Labs, which also means it ships updates without waiting on store review.
Does this work in Edge, Brave or Arc?
Any Chromium browser that installs Web Store extensions will run them. The on-device model needs a recent Chrome build, and every tool falls back cleanly when it is missing.