To get AI to write a reply to a text, paste the message you received, say what you want to get across and the tone you want, and ask for three options of different lengths. Then edit your favorite so it sounds like you. It works for group chats, awkward invitations, upset friends, pushy colleagues and landlords alike. Built-in smart replies are quick but generic, and AI keyboards that write for you can see everything you type. A local AI app writes replies without uploading your conversation, or the other person’s.
How to get AI to write a good reply #
- Paste the message you’re replying to. Swap real names for “my friend” or “my boss” if you’re using a cloud chatbot.
- Say what you want to say in a few words: “Yes, but not until next week,” or “No, but I want to stay friends.”
- Name the tone: warm, firm, casual, professional, funny, brief.
- Ask for options. “Give me three versions: one short, one medium, one warm.”
- Edit before you send. Change a word or two so it sounds like you. People can often tell when a reply has no fingerprints.
Prompts for common situations #
Decline an invitation
My friend invited me to her birthday dinner on Saturday. I can’t go because I’m working. Write three short, warm replies that decline and suggest meeting up another time.
Say no to extra work
My manager asked if I can take on the Henderson report this week. I’m already at capacity. Write a polite, firm reply that says no but offers to help next week. Two to three sentences.
Reply to an upset friend
My friend texted: “Honestly I felt pretty ignored at the party.” I didn’t mean to ignore her. Write a reply that apologizes without being defensive, and asks to talk. Keep it under 50 words.
Follow up when you’ve been ignored
I texted a contractor about a quote a week ago and heard nothing. Write a short, friendly follow-up that nudges without sounding annoyed.
Group chat reply
The family group chat is debating where to have Thanksgiving. I’d prefer my sister’s place but don’t want to start a fight. Write a light, diplomatic reply.
Set a boundary
My relative keeps asking when I’m getting married. Write a kind but clear reply that changes the subject. Nothing sarcastic.
Reply to a recruiter
A recruiter messaged me about a role. I’m not interested now but might be in six months. Write a polite reply that keeps the door open.
Condolences
A coworker’s father died. Write three short, sincere messages I could send. No clichés like “everything happens for a reason.”
For messages where getting the tone right matters most, run your final draft through a tone check. See AI tone checker for messages.
How to make AI replies sound like you #
AI replies drift toward the same polite, slightly stiff voice. Fix that once:
- Show it how you text. Paste two or three of your own recent messages and say “match this style.”
- Set rules: “No exclamation marks,” “use lowercase,” “one emoji max,” “never say ‘I hope this finds you well.’”
- Ask for shorter. Real texts are short. “Under 25 words” works wonders.
In an app that supports system prompts, save those rules in a “reply writer” chat so every draft starts in your voice:
You help me reply to messages. Give me three options: short, medium and warm. Match my style: casual, lowercase is fine, no exclamation marks, at most one emoji. Never add anything I didn’t ask to say.
More templates are in our system prompt examples.
Smart replies, AI keyboards or an AI chat app? #
| Option | Quality | Privacy |
|---|---|---|
| Built-in smart replies in messaging and email apps | Quick, generic, short | Depends on the app; see its settings |
| AI keyboards with chatbots built in | Flexible, works in any app | Often sends what you type to the keyboard’s servers |
| Cloud chatbot like ChatGPT | Strong | Your pasted conversation is stored on the provider’s servers |
| Local AI app on your phone | Good for everyday replies | Nothing leaves the phone |
AI keyboards deserve the most caution. On iPhone, a third-party keyboard can only send what you type to its servers if you turn on Allow Full Access, and most AI keyboards need exactly that. It means the keyboard could see every message you write, not just the ones you ask it to help with. Our guide to keyboard privacy covers which keyboards process text on the device.
Remember the other person’s privacy #
When you paste a friend’s message into a cloud chatbot, you’re sharing their words, and often their name and personal news, with a company they never agreed to. For a group chat screenshot, it can be several people at once. That’s a good reason to strip names or use an AI that doesn’t upload anything.
Write replies privately on your phone #
Personal LLM runs AI models entirely on your phone. Paste the message, say what you want to reply, and copy the result back into your messaging app with one tap. Neither your words nor the other person’s leave the device, there’s no account, and it works offline. Give a chat a “reply writer” system prompt once and every reply comes back in your style.
A phone-sized model handles everyday replies well. For a very delicate message, like a breakup, a legal dispute or a message to a grieving friend, use it for a first draft and then take your time making it your own.
If a message looks like it might be a scam, don’t reply at all. Check it first with how to check if a text is a scam.
Frequently asked questions #
Is there an AI that writes text replies for me? #
Yes. Any AI chatbot can do it if you paste the message and say what you want to reply. Some keyboards and messaging apps suggest replies automatically. A local AI app gives you more control and keeps the conversation on your phone.
Is it rude to use AI to reply to messages? #
Using AI to find the right words isn’t rude, much like asking a friend for help with a tricky text. What matters is that the reply says what you mean. Edit AI drafts so they sound like you, especially for personal messages.
Can AI reply to my texts automatically? #
Some assistants and business tools can, but automatic replies to personal messages often go wrong and can send things you didn’t intend. It’s safer to have AI draft and you send.
Is it safe to paste someone’s messages into ChatGPT? #
It shares their words and any personal details with OpenAI, where they’re stored under OpenAI’s policies. Remove names and sensitive details first, or use an AI that runs on your device.
How do I make AI replies sound less robotic? #
Ask for shorter replies, paste examples of your own texts and ask it to match them, and ban phrases you’d never use. Then change a word or two yourself before sending.