Sudowrite vs Writesonic: Which AI Writing Tool Is Better in 2026?
Sudowrite
From $10Writesonic
From $16Quick verdict
Overall pick: Writesonic
Pick Sudowrite if you write novels or creative fiction and want a lower starting price of $10 per month with multilingual output. Pick Writesonic if you produce SEO blog posts or run an agency: it adds copy templates, brand voice, a browser extension, SEO optimisation, team workspaces, and a public API for $16 per month, plus a free plan. Neither tool lists a plagiarism checker, so buyers needing that must look elsewhere.
- Sudowrite's entry plan ($10) is 38% cheaper than Writesonic's ($16).
- Writesonic has a free plan; Sudowrite does not.
- Only Writesonic offers: copy templates, brand voice / style memory, browser extension, seo optimisation, team workspaces, public api.
Cost calculator
| Tool | Monthly | Yearly |
|---|---|---|
| Sudowrite · flat | $10.00 | $120 |
| Writesonic · flat | $16.00 | $192 |
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 |
|---|---|---|
| Novelist drafting fiction | Sudowrite | Sudowrite is positioned for fiction authors and creative writing, and starts at $10 flat versus $16 for Writesonic. |
| SEO blog production | Writesonic | Writesonic has SEO optimisation and copy templates; Sudowrite lists neither. |
| Agency team collaboration | Writesonic | Writesonic offers team workspaces and a public API; Sudowrite lists neither. |
| Budget-conscious solo writer | Sudowrite | Sudowrite's starting price is $10 flat, below Writesonic's $16 flat starting price. |
| Trying before paying | Writesonic | Writesonic offers a free plan; Sudowrite does not. |
Feature comparison: Sudowrite vs Writesonic
| Feature | ||
|---|---|---|
| Free plan | ❌ | ✅ |
| Starting price | $10 /mo | $16 /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
Sudowrite
- Lower starting price at $10 flat per month
- Built specifically for fiction authors and creative writing
- Supports multilingual output
- No free plan
- No copy templates, brand voice, SEO mode, browser extension, team workspaces, or public API
- No plagiarism checker listed
Writesonic
- Broad feature set: templates, brand voice, browser extension, SEO mode, team workspaces, and public API
- Free plan available
- Aimed at SEO blog posts and agencies
- Supports multilingual output
- Higher starting price at $16 flat per month
- No plagiarism checker listed
- Not positioned for fiction or creative writing
At a glance
AI writing partner for fiction authors.
Founded 2020 · From $10 · 1/8 tracked features
Best for: novelists, creative writing
See Sudowrite alternatives →AI writer focused on SEO content.
Founded 2020 · From $16 · 7/8 tracked features
Best for: SEO blog posts, agencies
See Writesonic alternatives →FAQ
Is Sudowrite cheaper than Writesonic?
Yes. Sudowrite starts at $10 flat per month, while Writesonic starts at $16 flat per month.
Does either tool have a free plan?
Writesonic offers a free plan; Sudowrite does not.
Which tool is better for SEO content?
Writesonic, because it lists SEO optimisation and copy templates, which Sudowrite does not.
Do both tools support multilingual output?
Yes, both Sudowrite and Writesonic list multilingual output.
Does either tool include a plagiarism checker?
No. Neither Sudowrite nor Writesonic lists a plagiarism checker.
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Data last reviewed: pending verification. All AI Writing tools →