Compose AI’s Free Plan: AI Autocomplete in Your Browser, 1,500 Words a Month
Compose AI is a Chrome extension that puts AI writing assistance directly in every text field you type in — Gmail, Google Docs, LinkedIn, Slack, Notion, and most other sites. The free Basic plan gives you 1,500 words of AI-generated text a month, plus 50 autocompletes, 25 rephrases, and 10 one-click email replies. It’s a small allowance that runs out quickly with heavy use, but it’s enough to learn whether inline AI autocomplete fits the way you write.
Quick verdict: A genuinely useful free taste of predictive AI writing for people who live in email and messages. The 1,500-word monthly cap means it’s a demo, not a workflow — upgrade or look elsewhere if you write all day.
Quick Facts
- What it is: A Chrome extension that offers inline AI autocomplete, text generation from prompts, rephrasing, and one-click email replies wherever you type in the browser.
- Free plan: Basic, $0 — 1,500 words of AI-generated text per month, 50 advanced autocompletes, 25 rephrases per month, 10 easy email replies per month.
- Free limits: The monthly caps above; advanced personalization (the “learns your writing style” feature) is a premium perk; Chrome-only — no Firefox, Safari, or Edge support.
- Paid plans: Premium $9.99/month (billed annually) with 25,000 words/month, unlimited rephrase and autocomplete; Ultimate $29.99/month with unlimited generation.
- Best for: Professionals who write lots of short, repetitive text in the browser — sales reps, recruiters, customer service, social media managers — and anyone curious about predictive AI writing.
What the Extension Actually Does
Once installed, Compose AI runs quietly in the background of Chrome. As you type, it suggests completions you can accept with a keystroke — like Gmail’s Smart Compose, but everywhere, and smarter. Type // followed by a prompt to generate text from scratch, highlight text to rephrase or shorten it, and reply to emails professionally with one click (the reply references the original email’s context). Over time it learns your writing patterns — vocabulary, sentence structure, tone — so suggestions start to sound like you rather than a generic chatbot.
The privacy angle matters here: the extension reads what you type to do its job. Compose AI says user text is used only to improve autocomplete suggestions and is not sold. If you handle sensitive or regulated content, that’s a decision to weigh, not a detail to skip.
Free vs. Premium
| Basic (free) | Premium ($9.99/mo annual) | |
|---|---|---|
| AI-generated words/month | 1,500 | 25,000 |
| Advanced autocompletes | 50/month | Unlimited |
| Rephrase / reword | 25/month | Unlimited |
| Email replies | 10/month | 50/month |
| Style personalization | No | Yes |
Pros and Cons
Pros:
- Works in nearly any web text field — no switching apps, no copying and pasting into a chatbot.
- Inline autocomplete is genuinely fast for repetitive short-form writing like emails and messages.
- The free plan is enough to evaluate the core autocomplete experience properly.
- Easy email replies that reference the original email’s context save real time.
Cons:
- 1,500 words a month is a few days of active writing — the free tier is a demo, not a usable plan.
- Chrome-only. Firefox, Safari, and Edge users are out of luck.
- Style personalization — the headline feature — is paywalled, so free users never see the best version of the tool.
- Not built for long-form or creative writing; autocomplete can misfire when it lacks context.
Who It’s Actually For
Email-heavy professionals — sales, recruiting, support — who write dozens of similar messages a day and want a predictive-text boost. Students and casual users who want free help drafting quick replies. Skip it if you write long documents regularly (the free cap will frustrate you, and even Premium’s 25,000 words is tighter than alternatives at the price), or if you’re not a Chrome user.
Frequently Asked Questions
Is Compose AI free?
Yes — the Basic plan is free and includes 1,500 words of AI-generated text per month, 50 autocompletes, 25 rephrases, and 10 email replies. Paid plans start at $9.99/month billed annually.
Does Compose AI work in browsers other than Chrome?
No. Compose AI is currently available only as a Google Chrome extension. It doesn’t support Firefox, Safari, Edge, or other browsers.
Can Compose AI learn my writing style?
Yes — the paid tiers include style personalization, which learns your voice from your writing over time. The free plan does not include personalization.
Is Compose AI safe to use?
Compose AI says user text is used only to improve autocomplete suggestions and is not sold. As with any tool that reads what you type, check the privacy policy and be cautious with sensitive content.
The Bottom Line
Compose AI’s free plan is a fair trial of a focused idea: AI autocomplete everywhere you type in Chrome. The 1,500-word monthly limit will run out fast, so judge it on whether the autocomplete feels like magic during your trial — if it does, $9.99/month Premium is reasonable for short-form writers. If it doesn’t, free chatbots will handle your occasional drafting needs just fine.