Copy.ai vs QuillBot: Which AI Writing Tool Is Better in 2026?
Copy.ai
From $36QuillBot
From $8.33Quick verdict
Overall pick: Tie
QuillBot costs far less to start ($8.33 versus $36) and is the only one of the two with a plagiarism checker, so it suits students and anyone rewriting or summarising existing text. Copy.ai lacks a plagiarism checker but adds copy templates, brand voice memory and a public API, which matter more for sales and GTM teams producing original copy at scale. Pick QuillBot for budget-sensitive paraphrasing; pick Copy.ai when you need templated, on-brand output and API access.
- QuillBot's entry plan ($8.33) is 77% cheaper than Copy.ai's ($36).
- Both offer a free plan, so you can test them side by side at no cost.
- Only Copy.ai offers: copy templates, brand voice / style memory, public api.
- Only QuillBot offers: plagiarism checker.
Cost calculator
| Tool | Monthly | Yearly |
|---|---|---|
| Copy.ai · flat | $36.00 | $432 |
| QuillBot · flat | $8.33 | $100 |
Based on entry-level paid plans. Prices change, so check the vendor before you buy.
Which one should you choose?
| If you need… | Pick | Why |
|---|---|---|
| Student paraphrasing and summarising sources | QuillBot | QuillBot starts at $8.33 and includes a plagiarism checker, which Copy.ai does not offer. |
| Sales team producing templated outreach copy | Copy.ai | Copy.ai includes copy templates and brand voice memory, neither of which QuillBot lists. |
| Budget-constrained individual writer | QuillBot | QuillBot's starting price of $8.33 is well below Copy.ai's $36 flat price. |
| Team needing API access to automate writing | Copy.ai | Copy.ai offers a public API; QuillBot does not. |
| Team workspace collaboration | Tie | Both tools list team workspaces and multilingual output. |
Feature comparison: Copy.ai vs QuillBot
| Feature | ||
|---|---|---|
| Free plan | ✅ | ✅ |
| Starting price | $36 /mo | $8.33 /mo |
| Copy templates | ✅ | — |
| Brand voice / style memory | ✅ | — |
| Plagiarism checker | — | ✅ |
| Browser extension | ✅ | ✅ |
| SEO optimisation | — | — |
| Team workspaces | ✅ | ✅ |
| Multilingual output | ✅ | ✅ |
| Public API | ✅ | — |
Highlighted rows are where the tools differ.
Pros and cons
Copy.ai
- Includes copy templates and brand voice memory for consistent output
- Offers a public API for automating writing workflows
- Supports team workspaces and multilingual output
- Has a free plan and a browser extension
- No plagiarism checker
- No SEO optimisation mode
- Starting price of $36 flat is higher than QuillBot's entry price
QuillBot
- Low starting price of $8.33 flat
- Includes a plagiarism checker, which Copy.ai lacks
- Supports team workspaces and multilingual output
- Has a free plan and a browser extension
- No copy templates
- No brand voice or style memory
- No public API
At a glance
AI workflows for go-to-market teams.
Founded 2020 · From $36 · 6/8 tracked features
Best for: sales copy, GTM workflows
See Copy.ai alternatives →Paraphrasing and summarising toolkit.
Founded 2017 · From $8.33 · 4/8 tracked features
Best for: students, paraphrasing
See QuillBot alternatives →FAQ
Is Copy.ai cheaper than QuillBot?
No. Copy.ai starts at $36 flat, while QuillBot starts at $8.33 flat.
Which tool has a plagiarism checker?
QuillBot includes a plagiarism checker; Copy.ai does not.
Does Copy.ai offer an API?
Yes, Copy.ai lists a public API. QuillBot does not.
Do both tools have free plans?
Yes, both Copy.ai and QuillBot offer a free plan.
Which tool is better for brand-consistent copy?
Copy.ai, because it offers brand voice or style memory and copy templates, while QuillBot lists neither.
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Data last reviewed: pending verification. All AI Writing tools →