AlphaMoatによると、2026-09時点でChrome拡張機能Gmail AI Reply Assistantのユーザー数は12(前月比 +20%)で、9,324件のAIブラウザ拡張機能中8,750位、オフィス・コラボレーションでは1,839件中1,708位です。
Gmail AI Reply Assistantとは
Generate smart email replies with AI — supports multiple tones, languages, and custom instructions. GMAIL AI REPLY ASSISTANT
Write better email replies in seconds — directly inside Gmail.
Gmail AI Reply Assistant brings powerful large language models into your inbox. Instead of staring at a blank compose window, click one button and get a polished, ready-to-send reply instantly.
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HOW IT WORKS
- Open any email in Gmail
- Click the “AI Reply” button next to the Send button
- Choose your tone, length, and language
- The AI reads your email thread and generates a contextual reply
ストアの説明の続きを表示▾
You can:
- Edit the draft
- Regenerate instantly
- Insert it into Gmail with one click
- Copy it anywhere
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FEATURES
Smart Context Detection Automatically analyzes the email thread to generate relevant, accurate replies.
9 Tone Options Professional • Friendly • Casual • Formal • Concise • Empathetic • Apologetic • Assertive • Enthusiastic
3 Length Options
- Brief — 1–2 sentences
- Medium — 1 paragraph
- Detailed — 2–3 paragraphs
18 Languages English, Spanish, French, German, Italian, Portuguese, Chinese, Japanese, Korean, Arabic, Hindi, Russian, Dutch, Polish, Turkish, Swedish, Indonesian, Vietnamese
Custom Instructions Add specific directions like:
- “Decline the meeting politely”
- “Ask for a budget breakdown”
- “Follow up assertively”
Regenerate Instantly Not satisfied? Generate a new version in one click.
Copy Anywhere Use your AI-generated reply outside Gmail.
Saves Your Preferences Set your default tone, length, and language once — reuse automatically.
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POWERED BY GROQ (Ultra-Fast AI)
This extension uses the Groq API for high-speed inference.
Supported models:
- Llama 3.3 70B Versatile (recommended)
- Llama 3.1 8B Instant (fastest)
- Llama 3 70B
- Mixtral 8x7B (long context)
- Gemma 2 9B
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GETTING STARTED
1. Install the extension 2. Click the extension icon in your toolbar 3. Paste your free Groq API key (available at console.groq.com) 4. Open any Gmail thread — the “AI Reply” button appears automatically
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PRIVACY FIRST
- No data collection
- No tracking
- No storage of personal information
Your API key is stored locally using Chrome’s secure sync storage. Email content is sent only to the Groq API to generate replies and is never logged or retained by this extension.
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REQUIREMENTS
- A free Groq API account (groq.com)
- Google Chrome or any Chromium-based browser
- Access to Gmail (mail.google.com)
拡張機能の情報
ユーザー数の推移
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データ月:2026-09 · ユーザー数と評価はChromeウェブストアの公開データを月単位で集計したものです。詳しくはデータの方法論をご覧ください。