AI writing assistants Category leader
Grammarly
AI writing assistant that works in browsers, apps and email
Key features
- Brand voice
- Rewrite and tone change
- Plagiarism checking
- Use in other apps
Our picks · 5 tools reviewed
Best AI writing assistants software for 2026
AI tools that draft, rewrite and improve business copy and documents. Below: the names buyers expect to see, the newer tools gaining ground, and how their key features and prices compare. How we pick; nobody pays for a place here.
| Feature |
|
|
|
|
|
|---|---|---|---|---|---|
| Pricing | Free plan $12/month | $59/month per seat | Free plan | Contact sales | $79/month |
| Best for | — | — | Students and individual writers or small teams who mainly need paraphrasing and grammar fixes. | — | — |
| Team size | 1–500+ people | 2–500+ people | 1–50 people | 51–500+ people | 2–500 people |
| Brand voice | Yes | Yes | Not listed | Yes | Yes |
| Content templates | Not listed | Yes | Not listed | Not listed | Not listed |
| Grammar and style checking | Not listed | Not listed | Yes | Not listed | Not listed |
| Rewrite and tone change | Yes | Not listed | Yes | Not listed | Not listed |
| Plagiarism checking | Yes | Not listed | Yes | Not listed | Not listed |
| Use in other apps | Yes | Yes | Not listed | Not listed | Not listed |
| Visit | Visit | Visit | Visit | Visit | Visit |
Category leaders
The best-known AI writing assistants tools: the ones most buyers shortlist.
AI writing assistants Category leader
Jasper
AI content platform for marketing teams with brand voice controls
Key features
- Brand voice
- Content templates
- Use in other apps
AI writing assistants Category leader
QuillBot
Paraphrasing, grammar checking and summarizing in one writing tool
Key features
- Grammar and style checking
- Rewrite and tone change
- Plagiarism checking
AI writing assistants Category leader
Writer
Enterprise AI platform for on-brand writing with company knowledge
Key features
- Brand voice
Rising picks
Newer tools with real traction and a clear difference from the leaders.
AI writing assistants Rising
Writesonic
AI content and SEO platform with brand voices and site audits
Key features
- Brand voice