Reply Identity:
AI that writes
exactly like you.
Your reply identity is a private profile of how you write. Replai learns your tone and style, then puts AI agents to work drafting replies in your own words - Never a corporate template.
Privacy first. We read your sent emails only when you ask. We never touch your inbox without your explicit request.
What is a reply identity?
A reply identity is the part of Replai that holds your writing style. It carries its own private identity number, kept separate from your login, so your style data stands on its own. You build it by pasting in a few replies you have written before, and Replai works out the patterns in how you write.
Once it is built, AI agents draft your replies in that exact style. The greeting, the tone, the sign-off all match how you normally write. You save hours a week, you stay in control, and your inbox is never read or shared.
From your examples to replies in your voice
No long form to fill out. Show Replai how you already write, and it does the rest.
Drop in three to five emails you have written and liked. The more honest the examples, the better the match.
Replai studies your greetings, sign-offs, sentence length, and word choice, then turns it into three clear style scores.
AI draft agents write replies in your voice, ready to review and send. Save time on every message without sounding like a robot.
We spawn AI agents that reply for you.
Replai is not one chat box. When email arrives, it spins up focused AI agents, each trained on your reply identity. They read the message, draft a reply in your voice, and hand it back ready to send. That is how Replai answers in your own words and gives you hours back every week.
- Every agent works from your reply identity, not a generic template.
- Replies arrive drafted and queued, so you review instead of writing from scratch.
- Nothing goes out without you. Privacy stays the priority at every step.
Reply identity vs the usual options
Generic AI sounds flat. Writing every reply by hand eats your day. Here is how a reply identity stacks up.
| What matters | Replai reply identity | Generic AI | Writing by hand |
|---|---|---|---|
| Sounds like you | ✓ | - | ✓ |
| Automates your replies | ✓ | ~ | - |
| Saves hours each week | ✓ | ~ | - |
| Learns from your own examples | ✓ | - | ~ |
| Agentic: AI agents draft for you | ✓ | - | - |
| No inbox spying | ✓ | ~ | ✓ |
| Free to start | ✓ | ~ | ✓ |
Done writing every reply from scratch?
Build your reply identity in under five minutes. Free plan, no credit card, no inbox access.
Three scores that capture your voice
Replai distills your examples into three easy-to-read scores. Together they capture the feel of your writing, and they guide every reply your agents draft.
- Formality How buttoned-up your writing is. High is polished and professional. Low is casual and relaxed.
- Warmth How friendly and personal you sound. High is warm and human. Low is neutral and to the point.
- Directness How fast you get to the point. High is clear and brief. Low is softer and more layered.
What Replai looks at
Your reply identity comes from real, countable patterns in how you write.
Greetings
"Hi", "Hey", "Dear", or straight in: how you open says a lot about your tone.
Sign-offs
"Best", "Cheers", "Speak soon": each carries a different feel, and Replai keeps yours.
Sentence length
Short and punchy, or long and flowing - Replai matches your natural rhythm.
Word choice
The words you reach for, formal or warm, so drafts speak the same language you do.
Filler habits
Small habits, like how often you reach for "just" or "really", are part of your voice.
The three scores
It all rolls up into your Formality, Warmth, and Directness scores, the guide for every agent.
We access your emails only when you ask
Your writing is yours. Replai is built so your data stays private at every step. Here is exactly how we treat it.
Read more in our privacy policy.
Reply identity questions
Put AI agents to work
in your voice.
Create a free account, add a few writing examples, and let Replai draft replies that sound exactly like you. No inbox access required.