🐶 AI-Powered · Next-Gen Smart Keyboard

Langou Input MethodFree Your Hands

Let AI Chat For You

The world's first AI Agent-powered keyboard. Automatically understands chat context and generates multi-style reply suggestions. Works with WeChat, QQ, Telegram and all major chat apps. Stop typing, start living.

🐶 Download Now Learn More 🐾

✨ How Does Langou Chat For You?

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No typing needed — AI generates replies, you just tap to send

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Girlfriend

Hey, when are you coming home? Miss you 💕

🐶 Langou AI analyzes the message

Detected emotion: Missing you/Playful · Suggested style: Sweet reply

💬 AI generates reply suggestions (pick one):

Miss you too babe! Almost home 🥰 💕 Sweet

On my way! Got you bubble tea 🍵 😎 Funny

Coming home now, need a hug 🥺 🤗 Warm

👆 Tap a reply → Fills input box → Sent!

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You type in an AI tool

write me a plan

🐶 AI auto-optimizes your prompt

Adds role definition · Output format · Word limit · Structure

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Optimized prompt

You are a senior product manager. Write a project proposal for "Smart Customer Service System" including: 1) Background 2) Architecture 3) Timeline 4) Expected ROI. Markdown format, under 2000 words.

🐶

AI Chats For You

Powered by Xiaomi MiMo-V2.5-Pro with deep conversation understanding. Not just a keyboard — an AI companion that speaks for you.

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Instant Replies

AI generates replies in 2-3 seconds — 10x faster than typing. Just tap the one you like, Langou handles the rest.

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Privacy First

Encrypted data transfer. No chat logs stored. All AI processing follows strict privacy standards (PIPL & GDPR compliant).

🐾 Core Features

Three core capabilities to say goodbye to typing forever

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01 · Smart Context Awareness

Automatically reads chat messages, analyzes emotion and intent, understands every conversation tone. Works with WhatsApp, Telegram, Discord, WeChat.

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02 · AI Reply Suggestions

6 styles to choose from: Sweet/Humorous/Warm/Professional/Concise/Casual. Every suggestion is natural and perfectly fitting. Tap to send.

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03 · One-Tap Send

Found the perfect reply? One tap fills and sends it. No copy-paste, no app switching. 10x more efficient.

📱 Supported Platforms

One account, sync across all devices

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Android

✅ Available

🖥️

Windows

✅ Available

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iOS

Coming Soon

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macOS

Coming Soon

🐾 FAQ

Does Langou read my chat history?

Langou only captures visible text from the current screen (up to 10 messages) to generate AI suggestions. Texts are encrypted in transit. No raw screenshots stored. All data processed in memory and released immediately. PIPL & GDPR compliant.

How many AI replies can I use per day?

All features are completely free with no limits! AI replies, smart input, cloud sync — everything is unlimited and always will be.

Which chat apps are supported?

WhatsApp, Telegram, Messenger, Discord, WeChat, QQ, DingTalk, Lark, Slack and all major chat apps. Also supports prompt optimization for ChatGPT, DeepSeek, Claude.

How good are the AI replies?

Powered by MiMo-V2.5-Pro (420B parameters) with over 70% user adoption rate. AI considers context, emotion, and relationship to generate appropriate replies.