QuillBot vs Sudowrite: Which AI Writing Tool Is Better in 2026?
QuillBot
From $8.33Sudowrite
From $10Quick verdict
Overall pick: QuillBot
QuillBot suits buyers who need paraphrasing, summarising, a plagiarism checker and a browser extension, and it offers a free plan plus team workspaces. Sudowrite is the narrower pick for novelists and creative writing, with no free plan and no plagiarism checker, browser extension or team seats. Neither tool offers templates, brand voice, SEO optimisation or a public API, so buyers needing those should look elsewhere.
- QuillBot's entry plan ($8.33) is 17% cheaper than Sudowrite's ($10).
- QuillBot has a free plan; Sudowrite does not.
- Only QuillBot offers: plagiarism checker, browser extension, team workspaces.
Cost calculator
| Tool | Monthly | Yearly |
|---|---|---|
| QuillBot · flat | $8.33 | $100 |
| Sudowrite · flat | $10.00 | $120 |
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 lists students and paraphrasing as its best-for uses and includes a plagiarism checker, which Sudowrite lacks. |
| Novelist drafting fiction | Sudowrite | Sudowrite is positioned as an AI writing partner for fiction authors and lists novelists and creative writing as best-for uses. |
| Buyer wanting to try before paying | QuillBot | QuillBot offers a free plan starting at $8.33 flat, while Sudowrite has no free plan and starts at $10 flat. |
| Team collaboration on writing | QuillBot | QuillBot includes team workspaces; Sudowrite does not offer team seats. |
| Writing inside the browser | QuillBot | QuillBot provides a browser extension, which Sudowrite does not. |
Feature comparison: QuillBot vs Sudowrite
| Feature | ||
|---|---|---|
| Free plan | ✅ | ❌ |
| Starting price | $8.33 /mo | $10 /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
QuillBot
- Offers a free plan with a flat starting price of $8.33
- Includes a plagiarism checker and browser extension
- Supports team workspaces and multilingual output
- Well suited to students and paraphrasing tasks
- No copy templates, brand voice memory or SEO optimisation
- No public API
- Not positioned for fiction or creative writing
Sudowrite
- Purpose-built for fiction authors and creative writing
- Supports multilingual output
- Flat starting price of $10
- No free plan
- No plagiarism checker, browser extension or team workspaces
- No templates, brand voice, SEO optimisation or public API
At a glance
Paraphrasing and summarising toolkit.
Founded 2017 · From $8.33 · 4/8 tracked features
Best for: students, paraphrasing
See QuillBot alternatives →AI writing partner for fiction authors.
Founded 2020 · From $10 · 1/8 tracked features
Best for: novelists, creative writing
See Sudowrite alternatives →FAQ
Is QuillBot cheaper than Sudowrite?
Yes. QuillBot starts at $8.33 flat and has a free plan, while Sudowrite starts at $10 flat with no free plan.
Which tool has a plagiarism checker?
QuillBot includes a plagiarism checker; Sudowrite does not.
Does either tool offer a public API?
No. Neither QuillBot nor Sudowrite lists a public API.
Which is better for fiction writing?
Sudowrite, which is positioned as an AI writing partner for fiction authors and lists novelists and creative writing as best-for uses.
Do both tools support team workspaces?
No. QuillBot offers team workspaces; Sudowrite does not.
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Data last reviewed: pending verification. All AI Writing tools →