Compose AI Review 2026: Free AI Autocomplete & Writing Extension
Compose AI is a free Chrome extension that accelerates everyday writing with inline AI autocomplete and on-demand generation. Type // to ask it to write anything, highlight text to rephrase, or let it draft a full email reply from a few words. It learns your writing style over time. This review was compiled by our editorial team with AI-assisted research; pricing reflects 2026 data verified on compose.ai/pricing (caimpare.ai; ToolsForHumans; Spotsaas, Oct 2026).
What Compose AI does
- Smart autocomplete finishes your sentences across Gmail, Google Docs, LinkedIn, and most web apps.
//command generates paragraphs or completes thoughts from a short instruction.- Rephrase, shorten & expand with one click to adjust tone and length.
- Email reply generator drafts full replies that reference the original message.
- Personalization learns your voice the more you use it.
- Privacy-focused — text is used only for autocompletion and never sold.
Compose AI pricing (2026)
| Plan | Price (annual / monthly) | AI text | Notes |
|---|---|---|---|
| Basic | Free forever | 1,500 words/mo | 25 rephrases, 10 email replies, 50 autocompletes |
| Premium | $9.99 / $14.99 per mo | 25,000 words/mo | Unlimited rephrase, 50 email replies, unlimited autocomplete |
| Ultimate | $29.99 / $44.99 per mo | Unlimited | Unlimited everything, premium support |
| Enterprise | Custom | Multiple seats | All Ultimate features + volume discount |
Annual billing saves 33%. Premium and Ultimate include a 7-day free trial.
Pros and cons
Pros
- Free tier is genuinely usable for casual writers.
- Inline autocomplete works across nearly every website.
- Learns and adapts to your personal writing voice.
Cons
- The 1,500-word free cap runs out fast for daily use.
- 25,000-word Premium cap can still bite heavy users.
- Weak for long-form, document-scale writing.
Who should use Compose AI
Compose AI is for short-form, high-frequency typing — email and chat especially. For grammar and clarity checking, Grammarly and QuillBot are stronger; for full blog drafts, Rytr or Writesonic generate complete documents rather than finishing your sentences.
Verdict: 4.0/5. The best free inline autocomplete on the market; upgrade to Premium only if you blow past 1,500 words a month.
Compose AI is a trademark of its owner. CNPulse is not affiliated with any tool reviewed on this site. This is independent editorial content, not sponsored.