BEHAVIORAL AI FOR GMAIL

Your emails.
Your voice.
Any moment.

Tell it what you mean in one line. Pick the voice the moment needs. PersonaDraft writes the email a thoughtful human would have written — in your rhythm, inside Gmail.

No credit cardNames never leave your browserWorks in compose and reply
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‹›REPLY · GABBIA✕
Gabbi asked whether Friday works, and whether the budget goes in the deck.
THE MOMENT
A reply to Gabbi · yes to Friday · not yet · budget left out · include it
Answer the two that matter. Nothing is decided for you.Next
01 MOMENT02 VOICE03 DRAFT04 INSERT
HOW IT WORKS

Three decisions. Never a blank page.

Everything happens in one small window that sits on top of Gmail's compose. It reads the thread; you make the calls a human would.

01
The moment

For a reply, the window reads the thread and asks the two or three questions that actually matter — yes to Friday? mention the budget? For a new email, you type one line of intent.

02
The voice

Eight voices on one line — Direct, Gentle, Steady… Me is trained from your own sent mail; the other seven are behavioral presets. The moment sets guardrails — your voice never changes unless you change it.

03
The draft

Nudge Length or Formality, insert, send. Every draft is kept for the session, so you can walk back to the one that was best.

EIGHT VOICES

Not templates. Behavioral presets on eight dials.

Assertiveness, warmth, urgency, brevity, formality, expressiveness, detail, tact. Each voice is a saved arrangement; each moment reads against the real thread. Click a voice to watch the same reply change.

GENERIC AI

I hope this email finds you well. I wanted to reach out regarding the upcoming project deliverables. Please let me know if you have any questions.

Reads like everyone's assistant.
DIRECT · DECISIVE

Deliverables are due Friday. I need your section by EOD Thursday so I can consolidate. Flag blockers now — I'll clear them.

Reads like a person with a plan.
Assertiveness90
Warmth15
Urgency60
Brevity85
Formality55
Expressiveness15
Detail20
Tact40
This colour is the voice, Direct. Orange is the one dial the moment moved.
ME

The eighth voice is you. Trained in your browser, from your sent mail.

Teach Me reads your own emails locally and keeps only the numbers — sentence rhythm, contraction rate, how you hedge, how you sign off. The text itself never leaves your machine. From then on, Me sits first on the voice line and every draft sounds like you on a good day.

PRIVACY BY CONSTRUCTION

Our servers never learn who you email.

Names, addresses, phone and account numbers are replaced with tokens in your browser before a single byte is sent. The model works on the redacted thread; your details are stitched back in on your side. Nothing from the thread is stored.

Read the privacy policyBusiness: compliance firewall + IP shield
YOUR BROWSERGabbi Moreno asked whether Friday works and if we can share the $48k budget line. Reach her at gabbi@northwind.co.
→
WHAT WE RECEIVEPERSON_1 asked whether Friday works and if we can share the AMOUNT_1 budget line. Reach her at EMAIL_1.
→
YOUR DRAFT, RESTORED LOCALLYHi Gabbi, Friday works — go ahead and confirm with engineering. Let's keep the budget figure out of the deck for now; I'll send it separately.
TRY IT HERE

The real engine, in a practice inbox.

This is the same window the extension puts on Gmail — not a video. Sign in and draft a few emails on us, against a sample thread. Whatever you set here carries into the extension when you install it.

Nothing from the practice inbox is stored
Practice inbox · Re: Friday planning session
Gabbi Moreno · 4:02 PM
Does Friday still work for the planning session? Also wondering whether we should put the budget line in the deck.
‹›PERSONADRAFTA✕
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The whole product, nothing held back. Eight voices, Me, thread and personality analysis.

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Everything in the trial, for as long as you like. Model choice, psychology fine-tuning, your voice trained locally.

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