Blogging still works: a helpful article can bring search traffic, email subscribers and sales for years. The hard part is consistency. AI writing tools can help you research topics, build outlines, draft faster and polish your writing, so you can publish more often without burning out.
This guide groups eight AI writing tools from the AOC AI Tools Hub directory by the job they do: drafting, SEO optimisation and editing. Descriptions are based on each official website. We have not invented ranking results or traffic numbers, because no tool can guarantee rankings.
A word of caution: search engines reward helpful, people-first content. Publishing unedited AI text at scale is a fast way to build a site nobody trusts. The best results come from combining AI speed with your own experience, examples and opinions.
Quick comparison
| Tool | Best for | Pricing |
|---|---|---|
| Jasper | Marketing teams and brand voice | From $59/mo |
| Writesonic | SEO articles and AI search visibility | See pricing |
| Koala AI | Long-form SEO articles | Free to start, paid plans |
| Surfer | On-page SEO optimisation | See pricing |
| Frase | Content briefs and topic research | From $49/mo |
| Grammarly | Grammar, clarity and tone | Free plan available |
| QuillBot | Paraphrasing and summarising | Free plan available |
| Hemingway Editor | Clear, readable writing | Free web version; paid app and AI features |
1. Jasper
AI marketing platform with agents that run end-to-end content workflows for marketing teams.
Jasper is built for marketing content at scale, with brand voice settings so drafts sound consistent. It suits bloggers who run a business blog alongside other marketing.
Key features
- Marketing AI agents
- Brand voice
- Campaign content workflows
- Integrations
Pricing: From $59/mo. Check the official pricing page for current plans and limits.
See features and an official demo video on the Jasper tool page.
Try Jasper →2. Writesonic
AI search growth platform for SEO content, GEO and tracking brand visibility in AI search.
Writesonic combines SEO article writing with tracking how your brand shows up in AI search answers, which is becoming important as more people search with AI assistants.
Key features
- AI visibility (GEO) tracking
- SEO content writing
- Content optimization
- Brand mentions in AI answers
Pricing: See pricing. Check the official pricing page for current plans and limits.
See features and an official demo video on the Writesonic tool page.
Try Writesonic →3. Koala AI
Koala AI is an AI writer and SEO agent: the agent plans from your Search Console data, KoalaWriter writes on-brand articles, and you publish to your CMS in one click. Free to start.
Koala focuses on long-form blog posts and can connect with your Search Console data to plan topics. It is popular with niche site and affiliate bloggers.
Always add your own insights, photos and examples to drafts before publishing.
Pricing: Free to start, paid plans. Check the official pricing page for current plans and limits.
See features on the Koala AI tool page.
Try Koala AI →4. Surfer
SEO platform for data-backed content optimization, AI writing and AI search tracking.
Surfer's Content Editor helps you see which topics and terms a page about your keyword should cover, and it has a WordPress plugin. Use it after drafting to make sure your article is complete.
Key features
- Content Editor optimization
- AI writing
- WordPress plugin
- AI crawler analytics
Pricing: See pricing. Check the official pricing page for current plans and limits.
See features on the Surfer tool page.
Try Surfer →5. Frase
Content platform for AI search that finds topic gaps, scores pages and drafts SEO fixes.
Frase helps you research what top pages cover, find topic gaps and build briefs. It is useful before you write, so your outline answers the questions readers actually have.
Key features
- Topic and gap research
- Page scoring
- AI drafts and fixes
- Publishes to your CMS
Pricing: From $49/mo. Check the official pricing page for current plans and limits.
See features and an official demo video on the Frase tool page.
Try Frase →6. Grammarly
AI writing assistant that proofreads, rewrites and adjusts tone wherever you write.
Grammarly checks grammar and spelling and suggests clearer rewrites and tone changes wherever you write, including browsers and documents. It is especially helpful if English is your second language.
Key features
- Grammar and proofreading
- Paragraph rewrites
- Tone suggestions
- AI detector and humanizer
Pricing: Free plan available. Check the official pricing page for current plans and limits.
See features and an official demo video on the Grammarly tool page.
Try Grammarly →7. QuillBot
AI writing suite with paraphrasing, grammar checking, summarizing and visual tools across your apps.
QuillBot rewrites sentences in different styles, summarises long text and checks grammar. Use it to vary phrasing and simplify complex passages, not to rewrite other people's articles.
Key features
- Paraphraser
- Grammar checker
- Summarizer and AI detector
- Works across apps and browsers
Pricing: Free plan available. Check the official pricing page for current plans and limits.
See features and an official demo video on the QuillBot tool page.
Try QuillBot →8. Hemingway Editor
Hemingway Editor makes your writing bold and clear.
Hemingway highlights long sentences, passive voice and complex words so your posts are easy to read. Readable posts keep visitors on the page longer, which is good for readers and for your blog.
Pricing: Free web version; paid app and AI features. Check the official pricing page for current plans and limits.
See features on the Hemingway Editor tool page.
Try Hemingway Editor →A blogging workflow with AI
1. Research: pick a specific keyword with clear intent, such as 'best AI logo makers for small business'. Use Frase or Surfer to see what readers expect.
2. Outline: ask an AI writer for an outline, then add sections from your own experience.
3. Draft: let Jasper, Writesonic or Koala produce a first draft section by section.
4. Edit: rewrite in your voice, add real examples, screenshots and opinions, then run Grammarly and Hemingway.
5. Optimise and publish: check coverage in Surfer, add internal links to related posts, write a clear meta description and publish.
How to keep AI content helpful and trustworthy
Fact-check every number, price and claim against official sources. AI tools can produce plausible but wrong details.
Show experience. Mention what you tested, what surprised you and who the tool is not for. That is the part readers and search engines value most.
Disclose affiliate links clearly, as we do on this site.
Choosing on a budget
If you are just starting, a free stack of a general chatbot for outlines, Grammarly free and Hemingway's web version covers a lot. Upgrade to a dedicated SEO writer like Koala, Writesonic or Surfer once you publish regularly and can measure results.
Frequently asked questions
What is the best AI writing tool for bloggers?
It depends on your workflow. Koala and Writesonic are strong for SEO drafts, Surfer and Frase for optimisation and research, and Grammarly or Hemingway for editing.
Does Google penalise AI-written blog posts?
Google says it focuses on content quality rather than how it is produced. Low-value content made mainly to manipulate rankings is the problem, whether written by AI or people.
Is there a free AI writing tool for blogging?
Yes. Grammarly and QuillBot have free plans, Hemingway has a free web version, and some writers like Koala are free to start.
Can AI write a full blog post?
AI can draft a full post, but the best posts are edited by a person who adds experience, examples and fact-checking.
How many words should a blog post be?
There is no fixed number. Cover the topic fully and answer reader questions; for comparison and how-to guides that is often 1,200 to 2,000 words.
Final verdict
Combine one drafting tool, one SEO tool and one editor. A practical stack is Koala or Writesonic for drafts, Surfer or Frase for optimisation, and Grammarly plus Hemingway for polishing. Explore all AI writing tools on the AOC AI Tools Hub.
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