Compose AI
Cut your writing time by 40% with AI-powered autocomplete
About Compose AI
Compose AI is a Chrome extension that uses AI to autocomplete sentences, generate email replies, and rephrase text in real time across any browser-based application. It learns your personal writing style over time to deliver suggestions that sound like you. Built for professionals, content creators, recruiters, and anyone who writes at high volume and wants to move faster without sacrificing voice.
Pros & Cons
Pros
- Works across virtually any browser-based app without switching tools
- Generous free tier compared to most AI writing assistants
- Suggestions improve with use as the model learns your writing style
- Backed by Y Combinator with 400,000+ users
- Privacy-conscious: does not sell user data
Cons
- Email reply generation can feel generic for complex threads
- Limited control over tone beyond what the model infers from past writing
- Chrome-only — no native desktop app or non-Chromium browser support
- May be flagged by AI content detection tools
Key Features
AI Autocomplete
Real-time sentence completion working across Gmail, Docs, LinkedIn, and most browser tools
Personalized Writing Style
Learns your phrasing, tone, and vocabulary over time to match your voice
Email Reply Generation
Drafts contextually aware email responses in one click based on thread content
Text Rephrasing
Rewrites selected text with different tone, clarity, or style while preserving meaning
Multi-Platform Integration
Works as a Chrome extension across Gmail, Google Docs, Notion, Salesforce, LinkedIn, and more
Outline Generator
Creates structured writing frameworks for blog posts, reports, and longer-form content
Headline Generator
Suggests engaging titles and subject lines for articles, emails, and posts
Grammar Correction
Flags and corrects grammatical errors and awkward phrasing inline
Pricing
- 1,500 words/mo
- 25 rephrases
- 10 email replies
- 50 autocompletes
- 25,000 words/mo
- Unlimited rephrases
- 50 email replies
- Unlimited autocompletes
- Personalized style
- Unlimited everything
- Personalized style
- Early feature access
- Premium support
- All Ultimate features
- Multiple user accounts
- Volume discounts
- Dedicated support
Best For
High-Volume Email Communication
Sales reps, recruiters, and support agents draft and reply to dozens of emails per day without mental fatigue
Professional LinkedIn Content
Content creators maintain a consistent posting cadence with less time spent writing
Blog and Long-Form Drafting
Writers use outline and paragraph generation to break through writer's block and produce first drafts faster
Non-Native English Writing
Professionals writing in English as a second language use autocomplete and rephrasing to sound more fluent
