Best SEO.ai Alternatives in 2026
Updated
20 platforms from AI writing tools ranked against SEO.ai on the same published basis.
- 1SEO.ai vs Frase
- 2SEO.ai vs Rytr
- 3SEO.ai vs Byword
- 4SEO.ai vs Harbor
- 5SEO.ai vs Describely
- 6SEO.ai vs SEORise
- 7SEO.ai vs Contents.com AI Writer
- 8SEO.ai vs Copy.ai
- 9SEO.ai vs Anyword
- 10SEO.ai vs Autoblogging.ai
- 11SEO.ai vs Contentpen
- 12SEO.ai vs Lex
- 13SEO.ai vs Rankable
- 14SEO.ai vs Grammarly
- 15SEO.ai vs Paperpal
- 16SEO.ai vs ContentRyte
- 17SEO.ai vs Wordtune
- 18SEO.ai vs TextCortex
- 19SEO.ai vs HIX.AI
- 20SEO.ai vs NEURONwriter
SEO.ai alternatives compared
| # | Platform | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | Frase | 8.8 | Free plan | $19/mo | API, Browser, Web |
| 2 | Rytr | 8.7 | Free plan | $7.50/mo | API, Browser, Web |
| 3 | Byword | 8.6 | Free plan | $99/mo | API, Web |
| 4 | Harbor | 8.6 | Free plan | €24/mo | API, Web |
| 5 | Describely | 8.5 | Free plan | $0.75/mo | API, Web |
| 6 | SEORise | 8.5 | Free plan | $9/mo | API, Web |
| 7 | Contents.com AI Writer | 8.5 | Free plan | €13/mo | API, Web |
| 8 | Copy.ai | 8.4 | No | $24/mo | API, Web |
| 9 | Anyword | 8.2 | No | $49/mo | API, Browser, Web |
| 10 | Autoblogging.ai | 8.1 | No | $19/mo | API, Web |
| 11 | Contentpen | 7.8 | No | $27/mo | API, Web |
| 12 | Lex | 7.6 | No | — | API, iOS, Web |
| 13 | Rankable | 7.5 | No | $49.50/mo | API, Web |
| 14 | Grammarly | 7.4 | Free plan | $12/mo | Android, iOS |
| 15 | Paperpal | 7.4 | Free plan | $12/mo | Browser, Web |
| 16 | ContentRyte | 7.4 | No | $26.58/mo | API, Web |
| 17 | Wordtune | 7.3 | Free plan | $6.99/mo | Browser, iOS, Web |
| 18 | TextCortex | 7.3 | Free plan | Free | Web, iOS, Android |
| 19 | HIX.AI | 7.3 | Free plan | Free | Web, Windows, Mac |
| 20 | NEURONwriter | 7.3 | Free plan | $1.58/mo | Browser, Web |
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Questions about SEO.ai alternatives
What is the best alternative to SEO.ai?
Frase, number 1 in AI writing tools with a score of 8.8 out of 10. The others here: Rytr, Byword, Harbor and 16 more.
What is the best free alternative to SEO.ai?
Frase is the best-ranked alternative with a free plan. 13 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it.